Enable nullable annotations for Volo.Abp.AspNetCore.Mvc

framework/src/Volo.Abp.AspNetCore.Mvc/Microsoft/AspNetCore/Builder/AbpAspNetCoreMvcApplicationBuilderExtensions.cs

@@ -18,7 +18,7 @@ public static class AbpAspNetCoreMvcApplicationBuilderExtensions
     [Obsolete("Use app.UseConfiguredEndpoints(...) extension method instead!")]
     public static IApplicationBuilder UseMvcWithDefaultRouteAndArea(
         this IApplicationBuilder app,
-        Action<IEndpointRouteBuilder> additionalConfigurationAction = null)
+        Action<IEndpointRouteBuilder>? additionalConfigurationAction = null)
     {
         return app.UseConfiguredEndpoints(additionalConfigurationAction);
     }

framework/src/Volo.Abp.AspNetCore.Mvc/Microsoft/AspNetCore/Mvc/Abstractions/ActionDescriptorExtensions.cs

@@ -16,7 +16,7 @@ public static class ActionDescriptorExtensions
             throw new AbpException($"{nameof(actionDescriptor)} should be type of {typeof(ControllerActionDescriptor).AssemblyQualifiedName}");
         }
 
-        return actionDescriptor as ControllerActionDescriptor;
+        return (actionDescriptor as ControllerActionDescriptor)!;
     }
 
     public static MethodInfo GetMethodInfo(this ActionDescriptor actionDescriptor)
@@ -51,6 +51,6 @@ public static class ActionDescriptorExtensions
             throw new AbpException($"{nameof(actionDescriptor)} should be type of {typeof(PageActionDescriptor).AssemblyQualifiedName}");
         }
 
-        return actionDescriptor as PageActionDescriptor;
+        return (actionDescriptor as PageActionDescriptor)!;
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo.Abp.AspNetCore.Mvc.csproj

@@ -5,6 +5,8 @@
 
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <WarningsAsErrors>Nullable</WarningsAsErrors>
     <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
     <AssemblyName>Volo.Abp.AspNetCore.Mvc</AssemblyName>
     <PackageId>Volo.Abp.AspNetCore.Mvc</PackageId>

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AbpActionContextExtensions.cs

@@ -11,7 +11,7 @@ public static class AbpActionContextExtensions
         return context.HttpContext.RequestServices.GetRequiredService<T>();
     }
 
-    public static T GetService<T>(this FilterContext context, T defaultValue = default)
+    public static T? GetService<T>(this FilterContext context, T? defaultValue = default)
         where T : class
     {
         return context.HttpContext.RequestServices.GetService<T>() ?? defaultValue;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AbpController.cs

@@ -23,14 +23,14 @@ namespace Volo.Abp.AspNetCore.Mvc;
 
 public abstract class AbpController : Controller, IAvoidDuplicateCrossCuttingConcerns
 {
-    public IAbpLazyServiceProvider LazyServiceProvider { get; set; }
+    public IAbpLazyServiceProvider LazyServiceProvider { get; set; } = default!;
 
     [Obsolete("Use LazyServiceProvider instead.")]
-    public IServiceProvider ServiceProvider { get; set; }
+    public IServiceProvider ServiceProvider { get; set; } = default!;
 
     protected IUnitOfWorkManager UnitOfWorkManager => LazyServiceProvider.LazyGetRequiredService<IUnitOfWorkManager>();
 
-    protected Type ObjectMapperContext { get; set; }
+    protected Type? ObjectMapperContext { get; set; }
     protected IObjectMapper ObjectMapper => LazyServiceProvider.LazyGetService<IObjectMapper>(provider =>
         ObjectMapperContext == null
             ? provider.GetRequiredService<IObjectMapper>()
@@ -40,7 +40,7 @@ public abstract class AbpController : Controller, IAvoidDuplicateCrossCuttingCon
 
     protected ILoggerFactory LoggerFactory => LazyServiceProvider.LazyGetRequiredService<ILoggerFactory>();
 
-    protected ILogger Logger => LazyServiceProvider.LazyGetService<ILogger>(provider => LoggerFactory?.CreateLogger(GetType().FullName) ?? NullLogger.Instance);
+    protected ILogger Logger => LazyServiceProvider.LazyGetService<ILogger>(provider => LoggerFactory?.CreateLogger(GetType().FullName!) ?? NullLogger.Instance);
 
     protected ICurrentUser CurrentUser => LazyServiceProvider.LazyGetRequiredService<ICurrentUser>();
 
@@ -48,7 +48,7 @@ public abstract class AbpController : Controller, IAvoidDuplicateCrossCuttingCon
 
     protected IAuthorizationService AuthorizationService => LazyServiceProvider.LazyGetRequiredService<IAuthorizationService>();
 
-    protected IUnitOfWork CurrentUnitOfWork => UnitOfWorkManager?.Current;
+    protected IUnitOfWork? CurrentUnitOfWork => UnitOfWorkManager?.Current;
 
     protected IClock Clock => LazyServiceProvider.LazyGetRequiredService<IClock>();
 
@@ -70,16 +70,16 @@ public abstract class AbpController : Controller, IAvoidDuplicateCrossCuttingCon
             return _localizer;
         }
     }
-    private IStringLocalizer _localizer;
+    private IStringLocalizer? _localizer;
 
-    protected Type LocalizationResource {
+    protected Type? LocalizationResource {
         get => _localizationResource;
         set {
             _localizationResource = value;
             _localizer = null;
         }
     }
-    private Type _localizationResource = typeof(DefaultResource);
+    private Type? _localizationResource = typeof(DefaultResource);
 
     public List<string> AppliedCrossCuttingConcerns { get; } = new List<string>();
 
@@ -104,12 +104,12 @@ public abstract class AbpController : Controller, IAvoidDuplicateCrossCuttingCon
         return localizer;
     }
 
-    protected virtual RedirectResult RedirectSafely(string returnUrl, string returnUrlHash = null)
+    protected virtual RedirectResult RedirectSafely(string returnUrl, string? returnUrlHash = null)
     {
         return Redirect(GetRedirectUrl(returnUrl, returnUrlHash));
     }
 
-    protected virtual string GetRedirectUrl(string returnUrl, string returnUrlHash = null)
+    protected virtual string GetRedirectUrl(string returnUrl, string? returnUrlHash = null)
     {
         returnUrl = NormalizeReturnUrl(returnUrl);
 

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AbpControllerBase.cs

@@ -22,11 +22,11 @@ namespace Volo.Abp.AspNetCore.Mvc;
 
 public abstract class AbpControllerBase : ControllerBase, IAvoidDuplicateCrossCuttingConcerns
 {
-    public IAbpLazyServiceProvider LazyServiceProvider { get; set; }
+    public IAbpLazyServiceProvider LazyServiceProvider { get; set; } = default!;
 
     protected IUnitOfWorkManager UnitOfWorkManager => LazyServiceProvider.LazyGetRequiredService<IUnitOfWorkManager>();
 
-    protected Type ObjectMapperContext { get; set; }
+    protected Type? ObjectMapperContext { get; set; }
     protected IObjectMapper ObjectMapper => LazyServiceProvider.LazyGetService<IObjectMapper>(provider =>
         ObjectMapperContext == null
             ? provider.GetRequiredService<IObjectMapper>()
@@ -36,7 +36,7 @@ public abstract class AbpControllerBase : ControllerBase, IAvoidDuplicateCrossCu
 
     protected ILoggerFactory LoggerFactory => LazyServiceProvider.LazyGetRequiredService<ILoggerFactory>();
 
-    protected ILogger Logger => LazyServiceProvider.LazyGetService<ILogger>(provider => LoggerFactory?.CreateLogger(GetType().FullName) ?? NullLogger.Instance);
+    protected ILogger Logger => LazyServiceProvider.LazyGetService<ILogger>(provider => LoggerFactory?.CreateLogger(GetType().FullName!) ?? NullLogger.Instance);
 
     protected ICurrentUser CurrentUser => LazyServiceProvider.LazyGetRequiredService<ICurrentUser>();
 
@@ -44,7 +44,7 @@ public abstract class AbpControllerBase : ControllerBase, IAvoidDuplicateCrossCu
 
     protected IAuthorizationService AuthorizationService => LazyServiceProvider.LazyGetRequiredService<IAuthorizationService>();
 
-    protected IUnitOfWork CurrentUnitOfWork => UnitOfWorkManager?.Current;
+    protected IUnitOfWork? CurrentUnitOfWork => UnitOfWorkManager?.Current;
 
     protected IClock Clock => LazyServiceProvider.LazyGetRequiredService<IClock>();
 
@@ -64,16 +64,16 @@ public abstract class AbpControllerBase : ControllerBase, IAvoidDuplicateCrossCu
             return _localizer;
         }
     }
-    private IStringLocalizer _localizer;
+    private IStringLocalizer? _localizer;
 
-    protected Type LocalizationResource {
+    protected Type? LocalizationResource {
         get => _localizationResource;
         set {
             _localizationResource = value;
             _localizer = null;
         }
     }
-    private Type _localizationResource = typeof(DefaultResource);
+    private Type? _localizationResource = typeof(DefaultResource);
 
     public List<string> AppliedCrossCuttingConcerns { get; } = new List<string>();
 

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AbpDataAnnotationAutoLocalizationMetadataDetailsProvider.cs

@@ -17,13 +17,13 @@ public class AbpDataAnnotationAutoLocalizationMetadataDetailsProvider : IDisplay
 
     private readonly Lazy<IStringLocalizerFactory> _stringLocalizerFactory;
     private readonly Lazy<IOptions<MvcDataAnnotationsLocalizationOptions>> _localizationOptions;
-    private readonly ConcurrentDictionary<DisplayMetadataProviderContext, string> _displayNameKeys;
+    private readonly ConcurrentDictionary<DisplayMetadataProviderContext, string?> _displayNameKeys;
 
     public AbpDataAnnotationAutoLocalizationMetadataDetailsProvider(IServiceCollection services)
     {
         _stringLocalizerFactory = services.GetRequiredServiceLazy<IStringLocalizerFactory>();
         _localizationOptions = services.GetRequiredServiceLazy<IOptions<MvcDataAnnotationsLocalizationOptions>>();
-        _displayNameKeys = new ConcurrentDictionary<DisplayMetadataProviderContext, string>();
+        _displayNameKeys = new ConcurrentDictionary<DisplayMetadataProviderContext, string?>();
     }
 
     public virtual void CreateDisplayMetadata(DisplayMetadataProviderContext context)
@@ -58,11 +58,11 @@ public class AbpDataAnnotationAutoLocalizationMetadataDetailsProvider : IDisplay
         displayMetadata.DisplayName = () =>
         {
             var key = _displayNameKeys.GetOrAdd(context, _ => GetDisplayNameKey(context, localizer));
-            return key != null ? localizer[key] : null;
+            return (key != null ? localizer[key] : null)!;
         };
     }
 
-    protected virtual string GetDisplayNameKey(DisplayMetadataProviderContext context, IStringLocalizer localizer)
+    protected virtual string? GetDisplayNameKey(DisplayMetadataProviderContext context, IStringLocalizer localizer)
     {
         /*
         * DisplayName:ClassName:PropertyName
@@ -71,7 +71,7 @@ public class AbpDataAnnotationAutoLocalizationMetadataDetailsProvider : IDisplay
         * PropertyName
         */
 
-        LocalizedString localizedString = null;
+        LocalizedString? localizedString = null;
 
         if (context.Key.ContainerType != null)
         {
@@ -102,7 +102,7 @@ public class AbpDataAnnotationAutoLocalizationMetadataDetailsProvider : IDisplay
 
         if (localizedString.ResourceNotFound)
         {
-            localizedString = localizer[context.Key.Name];
+            localizedString = localizer[context.Key.Name!];
             if (!localizedString.ResourceNotFound)
             {
                 return localizedString.Name;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AbpViewComponent.cs

@@ -8,12 +8,12 @@ namespace Volo.Abp.AspNetCore.Mvc;
 
 public abstract class AbpViewComponent : ViewComponent
 {
-    public IAbpLazyServiceProvider LazyServiceProvider { get; set; }
+    public IAbpLazyServiceProvider LazyServiceProvider { get; set; } = default!;
 
     [Obsolete("Use LazyServiceProvider instead.")]
-    public IServiceProvider ServiceProvider { get; set; }
+    public IServiceProvider ServiceProvider { get; set; } = default!;
 
-    protected Type ObjectMapperContext { get; set; }
+    protected Type? ObjectMapperContext { get; set; }
 
     protected IObjectMapper ObjectMapper => LazyServiceProvider.LazyGetService<IObjectMapper>(provider =>
         ObjectMapperContext == null

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AntiForgery/AbpAntiForgeryCookieNameProvider.cs

@@ -17,7 +17,7 @@ public class AbpAntiForgeryCookieNameProvider : ITransientDependency
         _abpAntiForgeryOptions = abpAntiForgeryOptions.Value;
     }
 
-    public virtual string GetAuthCookieNameOrNull()
+    public virtual string? GetAuthCookieNameOrNull()
     {
         if (_abpAntiForgeryOptions.AuthCookieSchemaName == null)
         {
@@ -27,7 +27,7 @@ public class AbpAntiForgeryCookieNameProvider : ITransientDependency
         return _namedOptionsAccessor.Get(_abpAntiForgeryOptions.AuthCookieSchemaName)?.Cookie?.Name;
     }
 
-    public virtual string GetAntiForgeryCookieNameOrNull()
+    public virtual string? GetAntiForgeryCookieNameOrNull()
     {
         return _abpAntiForgeryOptions.TokenCookie.Name;
     }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AntiForgery/AbpAntiForgeryOptions.cs

@@ -17,7 +17,7 @@ public class AbpAntiForgeryOptions
     /// Used to find auth cookie when validating Anti Forgery token.
     /// Default value: "Identity.Application".
     /// </summary>
-    public string AuthCookieSchemaName { get; set; }
+    public string? AuthCookieSchemaName { get; set; }
 
     /// <summary>
     /// Default value: true.
@@ -34,7 +34,7 @@ public class AbpAntiForgeryOptions
         get => _autoValidateFilter;
         set => _autoValidateFilter = Check.NotNull(value, nameof(value));
     }
-    private Predicate<Type> _autoValidateFilter;
+    private Predicate<Type> _autoValidateFilter = default!;
 
     /// <summary>
     /// Default methods: "GET", "HEAD", "TRACE", "OPTIONS".
@@ -44,7 +44,7 @@ public class AbpAntiForgeryOptions
         get => _autoValidateIgnoredHttpMethods;
         set => _autoValidateIgnoredHttpMethods = Check.NotNull(value, nameof(value));
     }
-    private HashSet<string> _autoValidateIgnoredHttpMethods;
+    private HashSet<string> _autoValidateIgnoredHttpMethods = default!;
 
     public AbpAntiForgeryOptions()
     {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AntiForgery/AspNetCoreAbpAntiForgeryManager.cs

@@ -9,7 +9,7 @@ public class AspNetCoreAbpAntiForgeryManager : IAbpAntiForgeryManager, ITransien
 {
     protected AbpAntiForgeryOptions Options { get; }
 
-    protected HttpContext HttpContext => _httpContextAccessor.HttpContext;
+    protected HttpContext HttpContext => _httpContextAccessor.HttpContext!;
 
     private readonly IAntiforgery _antiforgery;
     private readonly IHttpContextAccessor _httpContextAccessor;
@@ -27,7 +27,7 @@ public class AspNetCoreAbpAntiForgeryManager : IAbpAntiForgeryManager, ITransien
     public virtual void SetCookie()
     {
         HttpContext.Response.Cookies.Append(
-            Options.TokenCookie.Name,
+            Options.TokenCookie.Name!,
             GenerateToken(),
             Options.TokenCookie.Build(HttpContext)
         );
@@ -35,6 +35,6 @@ public class AspNetCoreAbpAntiForgeryManager : IAbpAntiForgeryManager, ITransien
 
     public virtual string GenerateToken()
     {
-        return _antiforgery.GetAndStoreTokens(_httpContextAccessor.HttpContext).RequestToken;
+        return _antiforgery.GetAndStoreTokens(_httpContextAccessor.HttpContext!).RequestToken!;
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApiExploring/AbpRemoteServiceApiDescriptionProvider.cs

@@ -62,11 +62,11 @@ public class AbpRemoteServiceApiDescriptionProvider : IApiDescriptionProvider, I
     {
         foreach (var apiResponse in _options.SupportedResponseTypes)
         {
-            apiResponse.ModelMetadata = _modelMetadataProvider.GetMetadataForType(apiResponse.Type);
+            apiResponse.ModelMetadata = _modelMetadataProvider.GetMetadataForType(apiResponse.Type!);
 
             foreach (var responseTypeMetadataProvider in _mvcOptions.OutputFormatters.OfType<IApiResponseTypeMetadataProvider>())
             {
-                var formatterSupportedContentTypes = responseTypeMetadataProvider.GetSupportedContentTypes(null, apiResponse.Type);
+                var formatterSupportedContentTypes = responseTypeMetadataProvider.GetSupportedContentTypes(null!, apiResponse.Type!);
                 if (formatterSupportedContentTypes == null)
                 {
                     continue;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApplicationConfigurations/AbpApplicationConfigurationAppService.cs

@@ -346,7 +346,7 @@ public class AbpApplicationConfigurationAppService : ApplicationService, IAbpApp
                 {
                     TimeZoneName = windowsTimeZoneId.IsNullOrWhiteSpace()
                         ? null
-                        : _timezoneProvider.WindowsToIana(windowsTimeZoneId)
+                        : _timezoneProvider.WindowsToIana(windowsTimeZoneId!)
                 }
             }
         };

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApplicationConfigurations/AbpApplicationLocalizationAppService.cs

@@ -50,7 +50,7 @@ public class AbpApplicationLocalizationAppService :
                 var localizer = await StringLocalizerFactory.CreateByResourceNameOrNullAsync(resource.ResourceName);
                 if (localizer != null)
                 {
-                    Dictionary<string, LocalizedString> staticLocalizedStrings = null;
+                    Dictionary<string, LocalizedString>? staticLocalizedStrings = null;
                     
                     if (input.OnlyDynamics)
                     {
@@ -71,7 +71,7 @@ public class AbpApplicationLocalizationAppService :
                     {
                         if (input.OnlyDynamics)
                         {
-                            var staticLocalizedString = staticLocalizedStrings.GetOrDefault(localizedString.Name);
+                            var staticLocalizedString = staticLocalizedStrings!.GetOrDefault(localizedString.Name);
                             if (staticLocalizedString != null &&
                                 localizedString.Value == staticLocalizedString.Value)
                             {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApplicationConfigurations/ObjectExtending/CachedObjectExtensionsDtoService.cs

@@ -12,7 +12,7 @@ namespace Volo.Abp.AspNetCore.Mvc.ApplicationConfigurations.ObjectExtending;
 public class CachedObjectExtensionsDtoService : ICachedObjectExtensionsDtoService, ISingletonDependency
 {
     protected IExtensionPropertyAttributeDtoFactory ExtensionPropertyAttributeDtoFactory { get; }
-    protected volatile ObjectExtensionsDto CachedValue;
+    protected volatile ObjectExtensionsDto? CachedValue;
     protected readonly object SyncLock = new object();
 
     public CachedObjectExtensionsDtoService(IExtensionPropertyAttributeDtoFactory extensionPropertyAttributeDtoFactory)
@@ -193,7 +193,7 @@ public class CachedObjectExtensionsDtoService : ICachedObjectExtensionsDtoServic
         return TypeHelper.GetSimplifiedName(propertyConfig.Type);
     }
 
-    protected virtual LocalizableStringDto CreateDisplayNameDto(ExtensionPropertyConfiguration propertyConfig)
+    protected virtual LocalizableStringDto? CreateDisplayNameDto(ExtensionPropertyConfiguration propertyConfig)
     {
         if (propertyConfig.DisplayName == null)
         {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApplicationConfigurations/ObjectExtending/ExtensionPropertyAttributeDtoFactory.cs

@@ -71,7 +71,7 @@ public class ExtensionPropertyAttributeDtoFactory : IExtensionPropertyAttributeD
         return false;
     }
 
-    protected virtual object GetPropertyValue(Attribute attribute, PropertyInfo property)
+    protected virtual object? GetPropertyValue(Attribute attribute, PropertyInfo property)
     {
         var value = property.GetValue(attribute);
         if (value == null)

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApplicationPartSorter.cs

@@ -135,7 +135,7 @@ public static class ApplicationPartSorter
             .ToArray();
     }
 
-    private static CompiledRazorAssemblyPart GetViewsPartOrNull(ApplicationPartManager partManager,
+    private static CompiledRazorAssemblyPart? GetViewsPartOrNull(ApplicationPartManager partManager,
         ApplicationPart assemblyPart)
     {
         var viewsAssemblyName = assemblyPart.Name + ".Views";
@@ -145,7 +145,7 @@ public static class ApplicationPartSorter
             .FirstOrDefault(p => p.Name == viewsAssemblyName);
     }
 
-    private static AssemblyPart GetOriginalAssemblyPartOrNull(
+    private static AssemblyPart? GetOriginalAssemblyPartOrNull(
         CompiledRazorAssemblyPart compiledRazorAssemblyPart,
         ApplicationPartManager partManager)
     {
@@ -155,7 +155,7 @@ public static class ApplicationPartSorter
             .FirstOrDefault(p => p.Name == originalAssemblyName);
     }
 
-    private static IAbpModuleDescriptor GetModuleDescriptorForAssemblyOrNull(
+    private static IAbpModuleDescriptor? GetModuleDescriptorForAssemblyOrNull(
         IModuleContainer moduleContainer,
         Assembly assembly)
     {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs

@@ -162,7 +162,7 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
     }
 
     private static List<string> GetSupportedVersions(Type controllerType, MethodInfo method,
-        ConventionalControllerSetting setting)
+        ConventionalControllerSetting? setting)
     {
         var supportedVersions = new List<ApiVersion>();
 
@@ -196,7 +196,7 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
     }
 
     private static void AddCustomTypesToModel(ApplicationApiDescriptionModel applicationModel,
-        [CanBeNull] Type type)
+        Type? type)
     {
         if (type == null)
         {
@@ -275,7 +275,7 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
             .Select(_ => "T" + i++)
             .JoinAsString(",");
 
-        return $"{type.FullName.Left(type.FullName.IndexOf('`'))}<{argumentList}>";
+        return $"{type.FullName!.Left(type.FullName!.IndexOf('`'))}<{argumentList}>";
     }
 
     private void AddParameterDescriptionsToModel(ActionApiDescriptionModel actionModel, MethodInfo method,
@@ -339,16 +339,16 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
 
         if (modelNameProvider == null)
         {
-            return parameterInfo.Name;
+            return parameterInfo.Name!;
         }
 
-        return modelNameProvider.Name ?? parameterInfo.Name;
+        return (modelNameProvider.Name ?? parameterInfo.Name)!;
     }
 
     private static string GetRootPath(
         [NotNull] Type controllerType,
         [NotNull] ActionDescriptor actionDescriptor,
-        [CanBeNull] ConventionalControllerSetting setting)
+        ConventionalControllerSetting? setting)
     {
         if (setting != null)
         {
@@ -364,7 +364,7 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
         return ModuleApiDescriptionModel.DefaultRootPath;
     }
 
-    private string GetRemoteServiceName(Type controllerType, [CanBeNull] ConventionalControllerSetting setting)
+    private string GetRemoteServiceName(Type controllerType, ConventionalControllerSetting? setting)
     {
         if (setting != null)
         {
@@ -381,7 +381,7 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
         return ModuleApiDescriptionModel.DefaultRemoteServiceName;
     }
 
-    private string FindGroupName(Type controllerType)
+    private string? FindGroupName(Type controllerType)
     {
         var controllerNameAttribute =
             controllerType.GetCustomAttributes().OfType<ControllerNameAttribute>().FirstOrDefault();
@@ -394,8 +394,7 @@ public class AspNetCoreApiDescriptionModelProvider : IApiDescriptionModelProvide
         return null;
     }
 
-    [CanBeNull]
-    private ConventionalControllerSetting FindSetting(Type controllerType)
+    private ConventionalControllerSetting? FindSetting(Type controllerType)
     {
         foreach (var controllerSetting in _abpAspNetCoreMvcOptions.ConventionalControllers.ConventionalControllerSettings)
         {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProviderOptions.cs

@@ -12,11 +12,11 @@ namespace Volo.Abp.AspNetCore.Mvc;
 
 public class AspNetCoreApiDescriptionModelProviderOptions
 {
-    public Func<Type, ConventionalControllerSetting, string> ControllerNameGenerator { get; set; }
+    public Func<Type, ConventionalControllerSetting?, string> ControllerNameGenerator { get; set; }
 
     public Func<MethodInfo, string> ActionNameGenerator { get; set; }
 
-    public Func<ApiParameterDescription, string> ApiParameterNameGenerator { get; set; }
+    public Func<ApiParameterDescription, string?> ApiParameterNameGenerator { get; set; }
 
     public AspNetCoreApiDescriptionModelProviderOptions()
     {
@@ -51,7 +51,7 @@ public class AspNetCoreApiDescriptionModelProviderOptions
                         methodNameBuilder.Append("And");
                     }
 
-                    methodNameBuilder.Append(parameters[i].Name.ToPascalCase());
+                    methodNameBuilder.Append(parameters[i].Name!.ToPascalCase());
                 }
             }
 
@@ -62,7 +62,7 @@ public class AspNetCoreApiDescriptionModelProviderOptions
         {
             if (apiParameterDescription.ModelMetadata is DefaultModelMetadata defaultModelMetadata)
             {
-                var jsonPropertyNameAttribute = (JsonPropertyNameAttribute)
+                var jsonPropertyNameAttribute = (JsonPropertyNameAttribute?)
                     defaultModelMetadata?.Attributes?.PropertyAttributes?.FirstOrDefault(x => x is JsonPropertyNameAttribute);
                 if (jsonPropertyNameAttribute != null)
                 {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Auditing/AbpAuditActionFilter.cs

@@ -30,12 +30,12 @@ public class AbpAuditActionFilter : IAsyncActionFilter, ITransientDependency
 
                 if (result.Exception != null && !result.ExceptionHandled)
                 {
-                    auditLog.Exceptions.Add(result.Exception);
+                    auditLog!.Exceptions.Add(result.Exception);
                 }
             }
             catch (Exception ex)
             {
-                auditLog.Exceptions.Add(ex);
+                auditLog!.Exceptions.Add(ex);
                 throw;
             }
             finally
@@ -45,13 +45,13 @@ public class AbpAuditActionFilter : IAsyncActionFilter, ITransientDependency
                 if (auditLogAction != null)
                 {
                     auditLogAction.ExecutionDuration = Convert.ToInt32(stopwatch.Elapsed.TotalMilliseconds);
-                    auditLog.Actions.Add(auditLogAction);
+                    auditLog!.Actions.Add(auditLogAction);
                 }
             }
         }
     }
 
-    private bool ShouldSaveAudit(ActionExecutingContext context, out AuditLogInfo auditLog, out AuditLogActionInfo auditLogAction)
+    private bool ShouldSaveAudit(ActionExecutingContext context, out AuditLogInfo? auditLog, out AuditLogActionInfo? auditLogAction)
     {
         auditLog = null;
         auditLogAction = null;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Auditing/AbpAuditPageFilter.cs

@@ -35,12 +35,12 @@ public class AbpAuditPageFilter : IAsyncPageFilter, ITransientDependency
 
                 if (result.Exception != null && !result.ExceptionHandled)
                 {
-                    auditLog.Exceptions.Add(result.Exception);
+                    auditLog!.Exceptions.Add(result.Exception);
                 }
             }
             catch (Exception ex)
             {
-                auditLog.Exceptions.Add(ex);
+                auditLog!.Exceptions.Add(ex);
                 throw;
             }
             finally
@@ -50,13 +50,13 @@ public class AbpAuditPageFilter : IAsyncPageFilter, ITransientDependency
                 if (auditLogAction != null)
                 {
                     auditLogAction.ExecutionDuration = Convert.ToInt32(stopwatch.Elapsed.TotalMilliseconds);
-                    auditLog.Actions.Add(auditLogAction);
+                    auditLog!.Actions.Add(auditLogAction);
                 }
             }
         }
     }
 
-    private bool ShouldSaveAudit(PageHandlerExecutingContext context, out AuditLogInfo auditLog, out AuditLogActionInfo auditLogAction)
+    private bool ShouldSaveAudit(PageHandlerExecutingContext context, out AuditLogInfo? auditLog, out AuditLogActionInfo? auditLogAction)
     {
         auditLog = null;
         auditLogAction = null;
@@ -79,7 +79,7 @@ public class AbpAuditPageFilter : IAsyncPageFilter, ITransientDependency
         }
 
         var auditingHelper = context.GetRequiredService<IAuditingHelper>();
-        if (!auditingHelper.ShouldSaveAudit(context.HandlerMethod.MethodInfo, defaultValue: true))
+        if (!auditingHelper.ShouldSaveAudit(context.HandlerMethod!.MethodInfo, defaultValue: true))
         {
             return false;
         }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Authentication/ChallengeAccountController.cs

@@ -14,7 +14,7 @@ public abstract class ChallengeAccountController : AbpController
     protected string AuthenticationType { get; }
     protected string[] ForbidSchemes { get; }
 
-    protected ChallengeAccountController(string[] challengeAuthenticationSchemas = null)
+    protected ChallengeAccountController(string[]? challengeAuthenticationSchemas = null)
     {
         ChallengeAuthenticationSchemas = challengeAuthenticationSchemas ?? new[] { "oidc" };
         AuthenticationType = "Identity.Application";
@@ -68,12 +68,12 @@ public abstract class ChallengeAccountController : AbpController
             {
                 RedirectUri = GetRedirectUrl(returnUrl, returnUrlHash)
             },
-            ForbidSchemes.IsNullOrEmpty()
+            (ForbidSchemes.IsNullOrEmpty()
                 ? new[]
                 {
                     HttpContext.RequestServices.GetRequiredService<IOptions<AuthenticationOptions>>().Value.DefaultForbidScheme
                 }
-                : ForbidSchemes
+                : ForbidSchemes)!
         ));
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ContentFormatters/AbpRemoteStreamContentModelBinder.cs

@@ -155,6 +155,6 @@ public class AbpRemoteStreamContentModelBinder<TRemoteStreamContent> : IModelBin
             return new List<T>();
         }
 
-        return (ICollection<T>)Activator.CreateInstance(modelType);
+        return (ICollection<T>)Activator.CreateInstance(modelType)!;
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ContentFormatters/AbpRemoteStreamContentModelBinderProvider.cs

@@ -7,7 +7,7 @@ namespace Volo.Abp.AspNetCore.Mvc.ContentFormatters;
 
 public class AbpRemoteStreamContentModelBinderProvider : IModelBinderProvider
 {
-    public IModelBinder GetBinder(ModelBinderProviderContext context)
+    public IModelBinder? GetBinder(ModelBinderProviderContext context)
     {
         if (context == null)
         {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ContentFormatters/RemoteStreamContentOutputFormatter.cs

@@ -13,14 +13,14 @@ public class RemoteStreamContentOutputFormatter : OutputFormatter
         SupportedMediaTypes.Add(MediaTypeHeaderValue.Parse("*/*"));
     }
 
-    protected override bool CanWriteType(Type type)
+    protected override bool CanWriteType(Type? type)
     {
         return typeof(IRemoteStreamContent).IsAssignableFrom(type);
     }
 
     public async override Task WriteResponseBodyAsync(OutputFormatterWriteContext context)
     {
-        var remoteStream = (IRemoteStreamContent)context.Object;
+        var remoteStream = (IRemoteStreamContent?)context.Object;
 
         if (remoteStream != null)
         {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/AbpConventionalControllerOptions.cs

@@ -33,7 +33,7 @@ public class AbpConventionalControllerOptions
 
     public AbpConventionalControllerOptions Create(
         Assembly assembly,
-        [CanBeNull] Action<ConventionalControllerSetting> optionsAction = null)
+        Action<ConventionalControllerSetting>? optionsAction = null)
     {
         var setting = new ConventionalControllerSetting(
             assembly,

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/AbpServiceConvention.cs

@@ -105,7 +105,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
             if (removeControllerModels.Any())
             {
                 controllerModelsToRemove.AddRange(removeControllerModels);
-                Logger.LogInformation($"Removing the controller{(removeControllerModels.Length > 1 ? "s" : "")} {removeControllerModels.Select(c => c.ControllerType.AssemblyQualifiedName).JoinAsString(", ")} from the application model");
+                Logger.LogInformation($"Removing the controller{(removeControllerModels.Length > 1 ? "s" : "")} {removeControllerModels.Select(c => c.ControllerType.AssemblyQualifiedName)!.JoinAsString(", ")} from the application model");
             }
         }
 
@@ -121,7 +121,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
                 if (replaceControllerModels.Any())
                 {
                     controllerModelsToRemove.AddRange(replaceControllerModels);
-                    Logger.LogInformation($"Removing the controller{(replaceControllerModels.Length > 1 ? "s" : "")} {replaceControllersAttr.ControllerTypes.Select(c => c.AssemblyQualifiedName).JoinAsString(", ")} from the application model since {(replaceControllerModels.Length > 1 ? "they are" : "it is")} replaced by the controller: {controllerModel.ControllerType.AssemblyQualifiedName}");
+                    Logger.LogInformation($"Removing the controller{(replaceControllerModels.Length > 1 ? "s" : "")} {replaceControllersAttr.ControllerTypes.Select(c => c.AssemblyQualifiedName)!.JoinAsString(", ")} from the application model since {(replaceControllerModels.Length > 1 ? "they are" : "it is")} replaced by the controller: {controllerModel.ControllerType.AssemblyQualifiedName}");
                 }
             }
         }
@@ -139,7 +139,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
             }
 
             var exposeServicesAttr = ReflectionHelper.GetSingleAttributeOrDefault<ExposeServicesAttribute>(controllerModel.ControllerType);
-            if (exposeServicesAttr.IncludeSelf)
+            if (exposeServicesAttr!.IncludeSelf)
             {
                 var exposedControllerModels = GetControllers(application)
                     .Where(cm => exposeServicesAttr.ServiceTypes.Contains(cm.ControllerType))
@@ -148,7 +148,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
                 if (exposedControllerModels.Any())
                 {
                     controllerModelsToRemove.AddRange(exposedControllerModels);
-                    Logger.LogInformation($"Removing the controller{(exposedControllerModels.Length > 1 ? "s" : "")} {exposeServicesAttr.ServiceTypes.Select(c => c.AssemblyQualifiedName).JoinAsString(", ")} from the application model since {(exposedControllerModels.Length > 1 ? "they are" : "it is")} replaced by the controller: {controllerModel.ControllerType.AssemblyQualifiedName}");
+                    Logger.LogInformation($"Removing the controller{(exposedControllerModels.Length > 1 ? "s" : "")} {exposeServicesAttr.ServiceTypes.Select(c => c.AssemblyQualifiedName)!.JoinAsString(", ")} from the application model since {(exposedControllerModels.Length > 1 ? "they are" : "it is")} replaced by the controller: {controllerModel.ControllerType.AssemblyQualifiedName}");
                 }
                 continue;
             }
@@ -173,13 +173,13 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
             }
 
             controllerModelsToRemove.Add(controllerModel);
-            Logger.LogInformation($"Removing the controller {controllerModel.ControllerType.AssemblyQualifiedName} from the application model since it replaces the controller(s): {baseControllerTypes.Select(c => c.AssemblyQualifiedName).JoinAsString(", ")}");
+            Logger.LogInformation($"Removing the controller {controllerModel.ControllerType.AssemblyQualifiedName} from the application model since it replaces the controller(s): {baseControllerTypes.Select(c => c.AssemblyQualifiedName)!.JoinAsString(", ")}");
         }
 
         application.Controllers.RemoveAll(controllerModelsToRemove);
     }
 
-    protected virtual void ConfigureRemoteService(ControllerModel controller, [CanBeNull] ConventionalControllerSetting configuration)
+    protected virtual void ConfigureRemoteService(ControllerModel controller, ConventionalControllerSetting? configuration)
     {
         ConfigureApiExplorer(controller);
         ConfigureSelector(controller, configuration);
@@ -288,7 +288,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
         action.ApiExplorer.IsVisible = visible;
     }
 
-    protected virtual void ConfigureSelector(ControllerModel controller, [CanBeNull] ConventionalControllerSetting configuration)
+    protected virtual void ConfigureSelector(ControllerModel controller, ConventionalControllerSetting? configuration)
     {
         RemoveEmptySelectors(controller.Selectors);
 
@@ -312,7 +312,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
         }
     }
 
-    protected virtual void ConfigureSelector(string rootPath, string controllerName, ActionModel action, [CanBeNull] ConventionalControllerSetting configuration)
+    protected virtual void ConfigureSelector(string rootPath, string controllerName, ActionModel action, ConventionalControllerSetting? configuration)
     {
         RemoveEmptySelectors(action.Selectors);
 
@@ -332,7 +332,7 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
         }
     }
 
-    protected virtual void AddAbpServiceSelector(string rootPath, string controllerName, ActionModel action, [CanBeNull] ConventionalControllerSetting configuration)
+    protected virtual void AddAbpServiceSelector(string rootPath, string controllerName, ActionModel action, ConventionalControllerSetting? configuration)
     {
         var httpMethod = SelectHttpMethod(action, configuration);
 
@@ -345,12 +345,12 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
         action.Selectors.Add(abpServiceSelectorModel);
     }
 
-    protected virtual string SelectHttpMethod(ActionModel action, ConventionalControllerSetting configuration)
+    protected virtual string SelectHttpMethod(ActionModel action, ConventionalControllerSetting? configuration)
     {
         return HttpMethodHelper.GetConventionalVerbForMethodName(action.ActionName);
     }
 
-    protected virtual void NormalizeSelectorRoutes(string rootPath, string controllerName, ActionModel action, [CanBeNull] ConventionalControllerSetting configuration)
+    protected virtual void NormalizeSelectorRoutes(string rootPath, string controllerName, ActionModel action, ConventionalControllerSetting? configuration)
     {
         foreach (var selector in action.Selectors)
         {
@@ -394,13 +394,12 @@ public class AbpServiceConvention : IAbpServiceConvention, ITransientDependency
         return ModuleApiDescriptionModel.DefaultRootPath;
     }
 
-    [CanBeNull]
-    protected virtual ConventionalControllerSetting GetControllerSettingOrNull(Type controllerType)
+    protected virtual ConventionalControllerSetting? GetControllerSettingOrNull(Type controllerType)
     {
         return Options.ConventionalControllers.ConventionalControllerSettings.GetSettingOrNull(controllerType);
     }
 
-    protected virtual AttributeRouteModel CreateAbpServiceAttributeRouteModel(string rootPath, string controllerName, ActionModel action, string httpMethod, [CanBeNull] ConventionalControllerSetting configuration)
+    protected virtual AttributeRouteModel CreateAbpServiceAttributeRouteModel(string rootPath, string controllerName, ActionModel action, string httpMethod, ConventionalControllerSetting? configuration)
     {
         return new AttributeRouteModel(
             new RouteAttribute(

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalControllerSetting.cs

@@ -33,7 +33,7 @@ public class ConventionalControllerSetting
             _rootPath = value;
         }
     }
-    private string _rootPath;
+    private string _rootPath = default!;
 
     [NotNull]
     public string RemoteServiceName {
@@ -43,28 +43,24 @@ public class ConventionalControllerSetting
             _remoteServiceName = value;
         }
     }
-    private string _remoteServiceName;
+    private string _remoteServiceName = default!;
 
-    [CanBeNull]
-    public Func<Type, bool> TypePredicate { get; set; }
+    public Func<Type, bool>? TypePredicate { get; set; }
 
     /// <summary>
     /// Default value: All.
     /// </summary>
     public ApplicationServiceTypes ApplicationServiceTypes { get; set; } = ApplicationServiceTypes.All;
 
-    [CanBeNull]
-    public Action<ControllerModel> ControllerModelConfigurer { get; set; }
+    public Action<ControllerModel>? ControllerModelConfigurer { get; set; }
 
-    [CanBeNull]
-    public Func<UrlControllerNameNormalizerContext, string> UrlControllerNameNormalizer { get; set; }
+    public Func<UrlControllerNameNormalizerContext, string>? UrlControllerNameNormalizer { get; set; }
 
-    [CanBeNull]
-    public Func<UrlActionNameNormalizerContext, string> UrlActionNameNormalizer { get; set; }
+    public Func<UrlActionNameNormalizerContext, string>? UrlActionNameNormalizer { get; set; }
 
     public List<ApiVersion> ApiVersions { get; }
 
-    public Action<ApiVersioningOptions> ApiVersionConfigurer { get; set; }
+    public Action<ApiVersioningOptions>? ApiVersionConfigurer { get; set; }
 
     public ConventionalControllerSetting(
         [NotNull] Assembly assembly,
@@ -84,7 +80,7 @@ public class ConventionalControllerSetting
         var types = Assembly.GetTypes()
             .Where(IsRemoteService)
             .Where(IsPreferredApplicationServiceType)
-            .WhereIf(TypePredicate != null, TypePredicate);
+            .WhereIf(TypePredicate != null, TypePredicate!);
 
         foreach (var type in types)
         {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalControllerSettingList.cs

@@ -7,8 +7,7 @@ namespace Volo.Abp.AspNetCore.Mvc.Conventions;
 
 public class ConventionalControllerSettingList : List<ConventionalControllerSetting>
 {
-    [CanBeNull]
-    public ConventionalControllerSetting GetSettingOrNull(Type controllerType)
+    public ConventionalControllerSetting? GetSettingOrNull(Type controllerType)
     {
         return this.FirstOrDefault(controllerSetting => controllerSetting.ControllerTypes.Contains(controllerType));
     }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalRouteBuilder.cs

@@ -24,7 +24,7 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
         string controllerName,
         ActionModel action,
         string httpMethod,
-        [CanBeNull] ConventionalControllerSetting configuration)
+        ConventionalControllerSetting? configuration)
     {
         var apiRoutePrefix = GetApiRoutePrefix(action, configuration);
         var controllerNameInUrl =
@@ -71,7 +71,7 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
         return url;
     }
 
-    protected virtual string GetApiRoutePrefix(ActionModel actionModel, ConventionalControllerSetting configuration)
+    protected virtual string GetApiRoutePrefix(ActionModel actionModel, ConventionalControllerSetting? configuration)
     {
         if (IntegrationServiceAttribute.IsDefinedOrInherited(actionModel.Controller.ControllerType))
         {
@@ -82,7 +82,7 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
     }
 
     protected virtual string NormalizeUrlActionName(string rootPath, string controllerName, ActionModel action,
-        string httpMethod, [CanBeNull] ConventionalControllerSetting configuration)
+        string httpMethod, ConventionalControllerSetting? configuration)
     {
         var actionNameInUrl = HttpMethodHelper
             .RemoveHttpMethodPrefix(action.ActionName, httpMethod)
@@ -105,7 +105,7 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
     }
 
     protected virtual string NormalizeUrlControllerName(string rootPath, string controllerName, ActionModel action,
-        string httpMethod, [CanBeNull] ConventionalControllerSetting configuration)
+        string httpMethod, ConventionalControllerSetting? configuration)
     {
         if (configuration?.UrlControllerNameNormalizer == null)
         {
@@ -121,7 +121,7 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
     }
 
     protected virtual string NormalizeControllerNameCase(string controllerName,
-        [CanBeNull] ConventionalControllerSetting configuration)
+        ConventionalControllerSetting? configuration)
     {
         if (configuration?.UseV3UrlStyle ?? Options.UseV3UrlStyle)
         {
@@ -134,7 +134,7 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
     }
 
     protected virtual string NormalizeActionNameCase(string actionName,
-        [CanBeNull] ConventionalControllerSetting configuration)
+        ConventionalControllerSetting? configuration)
     {
         if (configuration?.UseV3UrlStyle ?? Options.UseV3UrlStyle)
         {
@@ -147,13 +147,13 @@ public class ConventionalRouteBuilder : IConventionalRouteBuilder, ITransientDep
     }
 
     protected virtual string NormalizeIdPropertyNameCase(PropertyInfo property,
-        [CanBeNull] ConventionalControllerSetting configuration)
+        ConventionalControllerSetting? configuration)
     {
         return property.Name;
     }
 
     protected virtual string NormalizeSecondaryIdNameCase(ParameterModel secondaryId,
-        [CanBeNull] ConventionalControllerSetting configuration)
+        ConventionalControllerSetting? configuration)
     {
         return secondaryId.ParameterName;
     }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/IConventionalRouteBuilder.cs

@@ -10,6 +10,6 @@ public interface IConventionalRouteBuilder
         string controllerName,
         ActionModel action,
         string httpMethod,
-        [CanBeNull] ConventionalControllerSetting configuration
+        ConventionalControllerSetting? configuration
     );
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/DataAnnotations/AbpValidationAttributeAdapterProvider.cs

@@ -14,7 +14,7 @@ public class AbpValidationAttributeAdapterProvider : IValidationAttributeAdapter
         _defaultAdapter = defaultAdapter;
     }
 
-    public virtual IAttributeAdapter GetAttributeAdapter(ValidationAttribute attribute, IStringLocalizer stringLocalizer)
+    public virtual IAttributeAdapter? GetAttributeAdapter(ValidationAttribute attribute, IStringLocalizer? stringLocalizer)
     {
         var type = attribute.GetType();
 

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/DataAnnotations/DynamicMaxLengthAttributeAdapter.cs

@@ -12,7 +12,7 @@ public class DynamicMaxLengthAttributeAdapter : AttributeAdapterBase<DynamicMaxL
 
     public DynamicMaxLengthAttributeAdapter(
         DynamicMaxLengthAttribute attribute,
-        IStringLocalizer stringLocalizer)
+        IStringLocalizer? stringLocalizer)
         : base(attribute, stringLocalizer)
     {
         _max = Attribute.Length.ToString(CultureInfo.InvariantCulture);

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/DataAnnotations/DynamicRangeAttributeAdapter.cs

@@ -14,11 +14,11 @@ public class DynamicRangeAttributeAdapter : AttributeAdapterBase<DynamicRangeAtt
 
     public DynamicRangeAttributeAdapter(
         DynamicRangeAttribute attribute,
-        IStringLocalizer stringLocalizer)
+        IStringLocalizer? stringLocalizer)
         : base(attribute, stringLocalizer)
     {
-        _min = Convert.ToString(Attribute.Minimum, CultureInfo.InvariantCulture);
-        _max = Convert.ToString(Attribute.Maximum, CultureInfo.InvariantCulture);
+        _min = Convert.ToString(Attribute.Minimum, CultureInfo.InvariantCulture)!;
+        _max = Convert.ToString(Attribute.Maximum, CultureInfo.InvariantCulture)!;
     }
 
     public override void AddValidation(ClientModelValidationContext context)

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/DataAnnotations/DynamicStringLengthAttributeAdapter.cs

@@ -14,7 +14,7 @@ public class DynamicStringLengthAttributeAdapter : AttributeAdapterBase<DynamicS
 
     public DynamicStringLengthAttributeAdapter(
         DynamicStringLengthAttribute attribute,
-        IStringLocalizer stringLocalizer)
+        IStringLocalizer? stringLocalizer)
         : base(attribute, stringLocalizer)
     {
         _max = Attribute.MaximumLength.ToString(CultureInfo.InvariantCulture);

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/AbpExceptionFilter.cs

@@ -77,7 +77,7 @@ public class AbpExceptionFilter : IAsyncExceptionFilter, ITransientDependency
             context.Result = new ObjectResult(new RemoteServiceErrorResponse(remoteServiceErrorInfo));
         }
 
-        context.Exception = null; //Handled!
+        context.Exception = null!; //Handled!
     }
 
     protected virtual void LogException(ExceptionContext context, out RemoteServiceErrorInfo remoteServiceErrorInfo)
@@ -94,7 +94,7 @@ public class AbpExceptionFilter : IAsyncExceptionFilter, ITransientDependency
         remoteServiceErrorInfoBuilder.AppendLine($"---------- {nameof(RemoteServiceErrorInfo)} ----------");
         remoteServiceErrorInfoBuilder.AppendLine(context.GetRequiredService<IJsonSerializer>().Serialize(remoteServiceErrorInfo, indented: true));
 
-        var logger = context.GetService<ILogger<AbpExceptionFilter>>(NullLogger<AbpExceptionFilter>.Instance);
+        var logger = context.GetService<ILogger<AbpExceptionFilter>>(NullLogger<AbpExceptionFilter>.Instance)!;
         var logLevel = context.Exception.GetLogLevel();
         logger.LogWithLevel(logLevel, remoteServiceErrorInfoBuilder.ToString());
         logger.LogException(context.Exception, logLevel);

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/AbpExceptionPageFilter.cs

@@ -47,7 +47,7 @@ public class AbpExceptionPageFilter : IAsyncPageFilter, ITransientDependency
         //TODO: Create DontWrap attribute to control wrapping..?
 
         if (context.ActionDescriptor.IsPageAction() &&
-            ActionResultHelper.IsObjectResult(context.HandlerMethod.MethodInfo.ReturnType, typeof(void)))
+            ActionResultHelper.IsObjectResult(context.HandlerMethod!.MethodInfo.ReturnType, typeof(void)))
         {
             return true;
         }
@@ -71,24 +71,24 @@ public class AbpExceptionPageFilter : IAsyncPageFilter, ITransientDependency
 
         var exceptionHandlingOptions = context.GetRequiredService<IOptions<AbpExceptionHandlingOptions>>().Value;
         var exceptionToErrorInfoConverter = context.GetRequiredService<IExceptionToErrorInfoConverter>();
-        var remoteServiceErrorInfo = exceptionToErrorInfoConverter.Convert(context.Exception, options =>
+        var remoteServiceErrorInfo = exceptionToErrorInfoConverter.Convert(context.Exception!, options =>
        {
            options.SendExceptionsDetailsToClients = exceptionHandlingOptions.SendExceptionsDetailsToClients;
            options.SendStackTraceToClients = exceptionHandlingOptions.SendStackTraceToClients;
        });
 
-        var logLevel = context.Exception.GetLogLevel();
+        var logLevel = context.Exception!.GetLogLevel();
 
         var remoteServiceErrorInfoBuilder = new StringBuilder();
         remoteServiceErrorInfoBuilder.AppendLine($"---------- {nameof(RemoteServiceErrorInfo)} ----------");
         remoteServiceErrorInfoBuilder.AppendLine(context.GetRequiredService<IJsonSerializer>().Serialize(remoteServiceErrorInfo, indented: true));
 
-        var logger = context.GetService<ILogger<AbpExceptionFilter>>(NullLogger<AbpExceptionFilter>.Instance);
+        var logger = context.GetService<ILogger<AbpExceptionFilter>>(NullLogger<AbpExceptionFilter>.Instance)!;
         logger.LogWithLevel(logLevel, remoteServiceErrorInfoBuilder.ToString());
 
-        logger.LogException(context.Exception, logLevel);
+        logger.LogException(context.Exception!, logLevel);
 
-        await context.GetRequiredService<IExceptionNotifier>().NotifyAsync(new ExceptionNotificationContext(context.Exception));
+        await context.GetRequiredService<IExceptionNotifier>().NotifyAsync(new ExceptionNotificationContext(context.Exception!));
 
         if (context.Exception is AbpAuthorizationException)
         {
@@ -100,7 +100,7 @@ public class AbpExceptionPageFilter : IAsyncPageFilter, ITransientDependency
             context.HttpContext.Response.Headers.Add(AbpHttpConsts.AbpErrorFormat, "true");
             context.HttpContext.Response.StatusCode = (int)context
                 .GetRequiredService<IHttpExceptionStatusCodeFinder>()
-                .GetStatusCode(context.HttpContext, context.Exception);
+                .GetStatusCode(context.HttpContext, context.Exception!);
 
             context.Result = new ObjectResult(new RemoteServiceErrorResponse(remoteServiceErrorInfo));
         }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/GlobalFeatures/GlobalFeatureActionFilter.cs

@@ -23,7 +23,7 @@ public class GlobalFeatureActionFilter : IAsyncActionFilter, ITransientDependenc
 
         if (!GlobalFeatureHelper.IsGlobalFeatureEnabled(context.Controller.GetType(), out var attribute))
         {
-            var logger = context.GetService<ILogger<GlobalFeatureActionFilter>>(NullLogger<GlobalFeatureActionFilter>.Instance);
+            var logger = context.GetService<ILogger<GlobalFeatureActionFilter>>(NullLogger<GlobalFeatureActionFilter>.Instance)!;
             logger.LogWarning($"The '{context.Controller.GetType().FullName}' controller needs to enable '{attribute.Name}' feature.");
             context.Result = new NotFoundResult();
             return;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/GlobalFeatures/GlobalFeaturePageFilter.cs

@@ -28,7 +28,7 @@ public class GlobalFeaturePageFilter : IAsyncPageFilter, ITransientDependency
 
         if (!GlobalFeatureHelper.IsGlobalFeatureEnabled(context.HandlerInstance.GetType(), out var attribute))
         {
-            var logger = context.GetService<ILogger<GlobalFeatureActionFilter>>(NullLogger<GlobalFeatureActionFilter>.Instance);
+            var logger = context.GetService<ILogger<GlobalFeatureActionFilter>>(NullLogger<GlobalFeatureActionFilter>.Instance)!;
             logger.LogWarning($"The '{context.HandlerInstance.GetType().FullName}' page needs to enable '{attribute.Name}' feature.");
             context.Result = new NotFoundResult();
             return;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Localization/AbpMvcAttributeValidationResultProvider.cs

@@ -22,7 +22,7 @@ public class AbpMvcAttributeValidationResultProvider : DefaultAttributeValidatio
         _stringLocalizerFactory = stringLocalizerFactory;
     }
 
-    public override ValidationResult GetOrDefault(ValidationAttribute validationAttribute, object validatingObject, ValidationContext validationContext)
+    public override ValidationResult? GetOrDefault(ValidationAttribute validationAttribute, object? validatingObject, ValidationContext validationContext)
     {
         var resourceSource = _abpMvcDataAnnotationsLocalizationOptions.AssemblyResources.GetOrDefault(validationContext.ObjectType.Assembly);
         if (resourceSource == null)

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ModelBinding/AbpDateTimeModelBinderProvider.cs

@@ -12,7 +12,7 @@ namespace Volo.Abp.AspNetCore.Mvc.ModelBinding;
 
 public class AbpDateTimeModelBinderProvider : IModelBinderProvider
 {
-    public IModelBinder GetBinder(ModelBinderProviderContext context)
+    public IModelBinder? GetBinder(ModelBinderProviderContext context)
     {
         var modelType = context.Metadata.UnderlyingOrModelType;
         if (modelType == typeof(DateTime))
@@ -31,7 +31,7 @@ public class AbpDateTimeModelBinderProvider : IModelBinderProvider
                     context.Metadata.ContainerType.IsDefined(typeof(DisableDateTimeNormalizationAttribute), true);
 
                 var dateNormalizationDisabledForProperty = context.Metadata.ContainerType
-                    .GetProperty(context.Metadata.PropertyName)
+                    .GetProperty(context.Metadata.PropertyName!)
                     ?.IsDefined(typeof(DisableDateTimeNormalizationAttribute), true);
 
                 if (!dateNormalizationDisabledForClass &&

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ModelBinding/AbpExtraPropertiesDictionaryModelBinderProvider.cs

@@ -11,7 +11,7 @@ namespace Volo.Abp.AspNetCore.Mvc.ModelBinding;
 
 public class AbpExtraPropertiesDictionaryModelBinderProvider : IModelBinderProvider
 {
-    public IModelBinder GetBinder(ModelBinderProviderContext context)
+    public IModelBinder? GetBinder(ModelBinderProviderContext context)
     {
         if (context == null)
         {
@@ -41,6 +41,6 @@ public class AbpExtraPropertiesDictionaryModelBinderProvider : IModelBinderProvi
             valueBinder,
             loggerFactory,
             true /* allowValidatingTopLevelNodes */,
-            mvcOptions);
+            mvcOptions)!;
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ModelBinding/AbpExtraPropertyModelBinder.cs

@@ -35,7 +35,7 @@ public class AbpExtraPropertyModelBinder : IModelBinder
         return Task.CompletedTask;
     }
 
-    protected virtual object ConvertStringToPropertyType(ModelBindingContext bindingContext, string value)
+    protected virtual object? ConvertStringToPropertyType(ModelBindingContext bindingContext, string? value)
     {
         if (bindingContext.ModelMetadata.ConvertEmptyStringToNull && string.IsNullOrWhiteSpace(value))
         {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ModelBinding/ExtraPropertyBindingHelper.cs

@@ -8,7 +8,7 @@ public static class ExtraPropertyBindingHelper
     /// <paramref name="expression"/> is a string like "UserInfo.ExtraProperties[SocialSecurityNumber]"
     /// This method returns "SocialSecurityNumber" for this example. */
     /// </summary>
-    public static string ExtractExtraPropertyName(string expression)
+    public static string? ExtractExtraPropertyName(string expression)
     {
         var index = expression.IndexOf("ExtraProperties[", StringComparison.Ordinal);
         if (index < 0)
@@ -23,7 +23,7 @@ public static class ExtraPropertyBindingHelper
     /// <paramref name="expression"/> is a string like "UserInfo.ExtraProperties[SocialSecurityNumber]"
     /// This method returns "UserInfo" for this example.
     /// </summary>
-    public static string ExtractContainerName(string expression)
+    public static string? ExtractContainerName(string expression)
     {
         var index = expression.IndexOf("ExtraProperties[", StringComparison.Ordinal);
         if (index < 0)

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ProxyScripting/ServiceProxyGenerationModel.cs

@@ -7,15 +7,15 @@ namespace Volo.Abp.AspNetCore.Mvc.ProxyScripting;
 
 public class ServiceProxyGenerationModel
 {
-    public string Type { get; set; }
+    public string? Type { get; set; }
 
     public bool UseCache { get; set; }
 
-    public string Modules { get; set; }
+    public string? Modules { get; set; }
 
-    public string Controllers { get; set; }
+    public string? Controllers { get; set; }
 
-    public string Actions { get; set; }
+    public string? Actions { get; set; }
 
     public ServiceProxyGenerationModel()
     {
@@ -36,17 +36,17 @@ public class ServiceProxyGenerationModel
 
         if (!Modules.IsNullOrEmpty())
         {
-            options.Modules = Modules.Split('|').Select(m => m.Trim()).ToArray();
+            options.Modules = Modules!.Split('|').Select(m => m.Trim()).ToArray();
         }
 
         if (!Controllers.IsNullOrEmpty())
         {
-            options.Controllers = Controllers.Split('|').Select(m => m.Trim()).ToArray();
+            options.Controllers = Controllers!.Split('|').Select(m => m.Trim()).ToArray();
         }
 
         if (!Actions.IsNullOrEmpty())
         {
-            options.Actions = Actions.Split('|').Select(m => m.Trim()).ToArray();
+            options.Actions = Actions!.Split('|').Select(m => m.Trim()).ToArray();
         }
 
         return options;

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Uow/AbpUowActionFilter.cs

@@ -67,7 +67,7 @@ public class AbpUowActionFilter : IAsyncActionFilter, ITransientDependency
         }
     }
 
-    private AbpUnitOfWorkOptions CreateOptions(ActionExecutingContext context, UnitOfWorkAttribute unitOfWorkAttribute)
+    private AbpUnitOfWorkOptions CreateOptions(ActionExecutingContext context, UnitOfWorkAttribute? unitOfWorkAttribute)
     {
         var options = new AbpUnitOfWorkOptions();
 

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Uow/AbpUowPageFilter.cs

@@ -73,7 +73,7 @@ public class AbpUowPageFilter : IAsyncPageFilter, ITransientDependency
         }
     }
 
-    private AbpUnitOfWorkOptions CreateOptions(PageHandlerExecutingContext context, UnitOfWorkAttribute unitOfWorkAttribute)
+    private AbpUnitOfWorkOptions CreateOptions(PageHandlerExecutingContext context, UnitOfWorkAttribute? unitOfWorkAttribute)
     {
         var options = new AbpUnitOfWorkOptions();
 

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Utils/ArrayMatcher.cs

@@ -33,7 +33,7 @@ internal static class ArrayMatcher
             }
 
             var resultItem = EqualityComparer<T>.Default.Equals(parentItem, default) ? sourceItem : parentItem;
-            result.Add(resultItem);
+            result.Add(resultItem!);
         }
 
         return result.ToArray();

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Validation/ValidationAttributeHelper.cs

@@ -6,10 +6,10 @@ namespace Volo.Abp.AspNetCore.Mvc.Validation;
 public static class ValidationAttributeHelper
 {
     private static readonly PropertyInfo ValidationAttributeErrorMessageStringProperty = typeof(ValidationAttribute)
-        .GetProperty("ErrorMessageString", BindingFlags.Instance | BindingFlags.NonPublic);
+        .GetProperty("ErrorMessageString", BindingFlags.Instance | BindingFlags.NonPublic)!;
 
     private static readonly PropertyInfo ValidationAttributeCustomErrorMessageSetProperty = typeof(ValidationAttribute)
-        .GetProperty("CustomErrorMessageSet", BindingFlags.Instance | BindingFlags.NonPublic);
+        .GetProperty("CustomErrorMessageSet", BindingFlags.Instance | BindingFlags.NonPublic)!;
 
     public static void SetDefaultErrorMessage(ValidationAttribute validationAttribute)
     {

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Versioning/HttpContextRequestedApiVersion.cs

@@ -6,7 +6,7 @@ namespace Volo.Abp.AspNetCore.Mvc.Versioning;
 
 public class HttpContextRequestedApiVersion : IRequestedApiVersion
 {
-    public string Current => _httpContextAccessor.HttpContext?.GetRequestedApiVersion()?.ToString();
+    public string? Current => _httpContextAccessor.HttpContext?.GetRequestedApiVersion()?.ToString();
 
     private readonly IHttpContextAccessor _httpContextAccessor;
 

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/ObjectExtending/ObjectExtensionPropertyInfoAspNetCoreMvcExtensions.cs

@@ -34,7 +34,7 @@ public static class ObjectExtensionPropertyInfoAspNetCoreMvcExtensions
             .FirstOrDefault()?.DataType;
     }
 
-    public static string GetDataFormatStringOrNull(this IBasicObjectExtensionPropertyInfo property)
+    public static string? GetDataFormatStringOrNull(this IBasicObjectExtensionPropertyInfo property)
     {
         return property
             .Attributes