CrudAppService/AsynCrudAppService Create methods should care multitenancy.

framework/src/Volo.Abp.Ddd.Application/Volo/Abp/Application/Services/AsyncCrudAppService.cs

@@ -1,10 +1,10 @@
 using System.Linq;
 using System.Threading.Tasks;
-using Microsoft.AspNetCore.Authorization;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.Domain.Repositories;
 using Volo.Abp.Linq;
+using Volo.Abp.MultiTenancy;
 
 namespace Volo.Abp.Application.Services
 {
@@ -90,6 +90,12 @@ namespace Volo.Abp.Application.Services
             await CheckCreatePolicyAsync();
 
             var entity = MapToEntity(input);
+            
+            if(entity is IMultiTenant)
+            {
+                TryToSetTenantId(entity);
+            }
+            
             await Repository.InsertAsync(entity, autoSave: true);
 
             return MapToEntityDto(entity);

framework/src/Volo.Abp.Ddd.Application/Volo/Abp/Application/Services/CrudAppService.cs

@@ -2,6 +2,7 @@
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.Domain.Repositories;
+using Volo.Abp.MultiTenancy;
 
 namespace Volo.Abp.Application.Services
 {
@@ -86,6 +87,12 @@ namespace Volo.Abp.Application.Services
             CheckCreatePolicy();
 
             var entity = MapToEntity(input);
+            
+            if(entity is IMultiTenant)
+            {
+                TryToSetTenantId(entity);
+            }
+            
             Repository.Insert(entity, autoSave: true);
 
             return MapToEntityDto(entity);

framework/src/Volo.Abp.Ddd.Application/Volo/Abp/Application/Services/CrudAppServiceBase.cs

@@ -4,6 +4,7 @@ using System.Linq.Dynamic.Core;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.Domain.Repositories;
+using Volo.Abp.MultiTenancy;
 using Volo.Abp.ObjectMapping;
 
 namespace Volo.Abp.Application.Services
@@ -150,5 +151,22 @@ namespace Volo.Abp.Application.Services
 
             ObjectMapper.Map(updateInput, entity);
         }
+        
+        protected virtual void TryToSetTenantId(TEntity entity)
+        {
+            var tenantId = CurrentTenant.Id;
+
+            if (tenantId == null)
+            {
+                return;
+            }
+
+            var propertyInfo = entity.GetType().GetProperty(nameof(IMultiTenant.TenantId));
+
+            if (propertyInfo != null && propertyInfo.GetSetMethod() != null)
+            {
+                propertyInfo.SetValue(entity, tenantId, null);
+            }
+        }
     }
 }