diff --git a/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs b/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs
index d1ef8b6d93..c9e8f23b1f 100644
--- a/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs
+++ b/framework/src/Volo.Abp.BlazoriseUI/AbpCrudPageBase.cs
@@ -282,9 +282,7 @@ namespace Volo.Abp.BlazoriseUI
 
         protected virtual async Task OpenCreateModalAsync()
         {
-            await OnOpeningCreateModalAsync();
-
-            CreateValidationsRef.ClearAll();
+            CreateValidationsRef?.ClearAll();
 
             await CheckCreatePolicyAsync();
 
@@ -297,11 +295,6 @@ namespace Volo.Abp.BlazoriseUI
             CreateModal.Show();
         }
 
-        protected virtual Task OnOpeningCreateModalAsync()
-        {
-            return Task.CompletedTask;
-        }
-
         protected virtual Task CloseCreateModalAsync()
         {
             CreateModal.Hide();
@@ -310,9 +303,7 @@ namespace Volo.Abp.BlazoriseUI
 
         protected virtual async Task OpenEditModalAsync(TKey id)
         {
-            await OnOpeningEditModalAsync(id);
-
-            EditValidationsRef.ClearAll();
+            EditValidationsRef?.ClearAll();
 
             await CheckUpdatePolicyAsync();
 
@@ -326,11 +317,6 @@ namespace Volo.Abp.BlazoriseUI
             EditModal.Show();
         }
 
-        protected virtual Task OnOpeningEditModalAsync(TKey id)
-        {
-            return Task.CompletedTask;
-        }
-
         protected virtual TUpdateViewModel MapToEditingEntity(TGetOutputDto entityDto)
         {
             return ObjectMapper.Map<TGetOutputDto, TUpdateViewModel>(entityDto);
@@ -364,7 +350,7 @@ namespace Volo.Abp.BlazoriseUI
 
         protected virtual async Task CreateEntityAsync()
         {
-            if (CreateValidationsRef.ValidateAll())
+            if (CreateValidationsRef?.ValidateAll() ?? false)
             {
                 await OnCreatingEntityAsync();
 
@@ -391,7 +377,7 @@ namespace Volo.Abp.BlazoriseUI
 
         protected virtual async Task UpdateEntityAsync()
         {
-            if (EditValidationsRef.ValidateAll())
+            if (EditValidationsRef?.ValidateAll() ?? false)
             {
                 await OnUpdatingEntityAsync();
 
diff --git a/modules/identity/src/Volo.Abp.Identity.Blazor/Pages/Identity/UserManagement.razor.cs b/modules/identity/src/Volo.Abp.Identity.Blazor/Pages/Identity/UserManagement.razor.cs
index ad93eace86..bd1ac19814 100644
--- a/modules/identity/src/Volo.Abp.Identity.Blazor/Pages/Identity/UserManagement.razor.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Blazor/Pages/Identity/UserManagement.razor.cs
@@ -48,7 +48,7 @@ namespace Volo.Abp.Identity.Blazor.Pages.Identity
             Roles = (await AppService.GetAssignableRolesAsync()).Items;
         }
 
-        protected override async Task OnOpeningCreateModalAsync()
+        protected override Task OnOpeningCreateModalAsync()
         {
             CreateModalSelectedTab = DefaultSelectedTab;
 
@@ -58,7 +58,7 @@ namespace Volo.Abp.Identity.Blazor.Pages.Identity
                 IsAssigned = x.IsDefault
             }).ToArray();
 
-            await base.OnOpeningCreateModalAsync();
+            return base.OpenCreateModalAsync();
         }
 
         protected override Task OnCreatingEntityAsync()
@@ -81,7 +81,7 @@ namespace Volo.Abp.Identity.Blazor.Pages.Identity
                 IsAssigned = userRoleNames.Contains(x.Name)
             }).ToArray();
 
-            await base.OnOpeningEditModalAsync(id);
+            await base.OpenEditModalAsync(id);
         }
 
         protected override Task OnUpdatingEntityAsync()