Add OnDeletingEntityAsync

framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs

@@ -485,7 +485,7 @@ namespace Volo.Abp.BlazoriseUI
             try
             {
                 await CheckDeletePolicyAsync();
-
+                await OnDeletingEntityAsync();
                 await AppService.DeleteAsync(entity.Id);
                 await OnDeletedEntityAsync();
             }
@@ -495,6 +495,11 @@ namespace Volo.Abp.BlazoriseUI
             }
         }
             
+        protected virtual Task OnDeletingEntityAsync()
+        {
+            return Task.CompletedTask;
+        }
+            
         protected virtual async Task OnDeletedEntityAsync()
         {
             await GetEntitiesAsync();