diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs b/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs
index 082a803cd9..b5c5699757 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs
@@ -68,12 +68,24 @@ namespace Volo.Abp.AspNetCore.Mvc
             ApplicationApiDescriptionModel applicationModel,
             ApplicationApiDescriptionModelRequestDto input)
         {
-            var controllerType = apiDescription.ActionDescriptor.AsControllerActionDescriptor().ControllerTypeInfo.AsType();
+            var controllerType = apiDescription
+                .ActionDescriptor
+                .AsControllerActionDescriptor()
+                .ControllerTypeInfo;
+
             var setting = FindSetting(controllerType);
 
-            var moduleModel = applicationModel.GetOrAddModule(GetRootPath(controllerType, setting), GetRemoteServiceName(controllerType, setting));
+            var moduleModel = applicationModel.GetOrAddModule(
+                GetRootPath(controllerType, setting),
+                GetRemoteServiceName(controllerType, setting)
+            );
 
-            var controllerModel = moduleModel.GetOrAddController(controllerType.FullName, CalculateControllerName(controllerType, setting), controllerType, _modelOptions.IgnoredInterfaces);
+            var controllerModel = moduleModel.GetOrAddController(
+                controllerType.FullName,
+                CalculateControllerName(controllerType, setting),
+                controllerType,
+                _modelOptions.IgnoredInterfaces
+            );
 
             var method = apiDescription.ActionDescriptor.GetMethodInfo();
 
@@ -86,13 +98,16 @@ namespace Volo.Abp.AspNetCore.Mvc
 
             Logger.LogDebug($"ActionApiDescriptionModel.Create: {controllerModel.ControllerName}.{uniqueMethodName}");
 
-            var actionModel = controllerModel.AddAction(uniqueMethodName, ActionApiDescriptionModel.Create(
+            var actionModel = controllerModel.AddAction(
                 uniqueMethodName,
-                method,
-                apiDescription.RelativePath,
-                apiDescription.HttpMethod,
-                GetSupportedVersions(controllerType, method, setting)
-            ));
+                ActionApiDescriptionModel.Create(
+                    uniqueMethodName,
+                    method,
+                    apiDescription.RelativePath,
+                    apiDescription.HttpMethod,
+                    GetSupportedVersions(controllerType, method, setting)
+                )
+            );
 
             if (input.IncludeTypes)
             {
@@ -188,16 +203,16 @@ namespace Volo.Abp.AspNetCore.Mvc
                 return;
             }
 
-            if (TypeHelper.IsEnumerable(type, out var itemType))
+            if (TypeHelper.IsDictionary(type, out var keyType, out var valueType))
             {
-                AddCustomTypesToModel(applicationModel, itemType);
+                AddCustomTypesToModel(applicationModel, keyType);
+                AddCustomTypesToModel(applicationModel, valueType);
                 return;
             }
 
-            if (TypeHelper.IsDictionary(type, out var keyType, out var valueType))
+            if (TypeHelper.IsEnumerable(type, out var itemType))
             {
-                AddCustomTypesToModel(applicationModel, keyType);
-                AddCustomTypesToModel(applicationModel, valueType);
+                AddCustomTypesToModel(applicationModel, itemType);
                 return;
             }
 
diff --git a/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/MethodParameterApiDescriptionModel.cs b/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/MethodParameterApiDescriptionModel.cs
index 211359d789..603d3994e0 100644
--- a/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/MethodParameterApiDescriptionModel.cs
+++ b/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/MethodParameterApiDescriptionModel.cs
@@ -30,11 +30,11 @@ namespace Volo.Abp.Http.Modeling
             {
                 Name = parameterInfo.Name,
                 TypeAsString = parameterInfo.ParameterType.GetFullNameWithAssemblyName(),
-                Type = parameterInfo.ParameterType != null ? TypeHelper.GetFullNameHandlingNullableAndGenerics(parameterInfo.ParameterType) : null,
-                TypeSimple = parameterInfo.ParameterType != null ? TypeHelper.GetSimplifiedName(parameterInfo.ParameterType) : null,
+                Type = TypeHelper.GetFullNameHandlingNullableAndGenerics(parameterInfo.ParameterType),
+                TypeSimple = TypeHelper.GetSimplifiedName(parameterInfo.ParameterType),
                 IsOptional = parameterInfo.IsOptional,
                 DefaultValue = parameterInfo.HasDefaultValue ? parameterInfo.DefaultValue : null
             };
         }
     }
-}
\ No newline at end of file
+}
diff --git a/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/PropertyApiDescriptionModel.cs b/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/PropertyApiDescriptionModel.cs
index 820d9a46f9..80a3cee91a 100644
--- a/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/PropertyApiDescriptionModel.cs
+++ b/framework/src/Volo.Abp.Http/Volo/Abp/Http/Modeling/PropertyApiDescriptionModel.cs
@@ -19,22 +19,22 @@ namespace Volo.Abp.Http.Modeling
             string typeName;
             string simpleTypeName;
 
-            if (TypeHelper.IsEnumerable(propertyInfo.PropertyType, out var itemType, includePrimitives: false))
-            {
-                typeName = $"[{TypeHelper.GetFullNameHandlingNullableAndGenerics(itemType)}]";
-                simpleTypeName = $"[{TypeHelper.GetSimplifiedName(itemType)}]";
-            }
-            else if (TypeHelper.IsDictionary(propertyInfo.PropertyType, out var keyType, out var valueType))
+            if (TypeHelper.IsDictionary(propertyInfo.PropertyType, out var keyType, out var valueType))
             {
                 typeName = $"{{{TypeHelper.GetFullNameHandlingNullableAndGenerics(keyType)}:{TypeHelper.GetFullNameHandlingNullableAndGenerics(valueType)}}}";
                 simpleTypeName = $"{{{TypeHelper.GetSimplifiedName(keyType)}:{TypeHelper.GetSimplifiedName(valueType)}}}";
             }
+            else if (TypeHelper.IsEnumerable(propertyInfo.PropertyType, out var itemType, includePrimitives: false))
+            {
+                typeName = $"[{TypeHelper.GetFullNameHandlingNullableAndGenerics(itemType)}]";
+                simpleTypeName = $"[{TypeHelper.GetSimplifiedName(itemType)}]";
+            }
             else
             {
                 typeName = TypeHelper.GetFullNameHandlingNullableAndGenerics(propertyInfo.PropertyType);
                 simpleTypeName = TypeHelper.GetSimplifiedName(propertyInfo.PropertyType);
             }
-            
+
             return new PropertyApiDescriptionModel
             {
                 Name = propertyInfo.Name,
@@ -43,4 +43,4 @@ namespace Volo.Abp.Http.Modeling
             };
         }
     }
-}
\ No newline at end of file
+}