diff --git a/DbFirst.BlazorWasm/Components/CatalogsGrid.razor b/DbFirst.BlazorWasm/Components/CatalogsGrid.razor
index 3d9149f..25b9a0a 100644
--- a/DbFirst.BlazorWasm/Components/CatalogsGrid.razor
+++ b/DbFirst.BlazorWasm/Components/CatalogsGrid.razor
@@ -95,7 +95,10 @@ else
                 @{ SetEditContext(editFormContext.EditContext); var editModel = (CatalogEditModel)editFormContext.EditModel; }
                 <DxFormLayout ColCount="2">
                     <DxFormLayoutItem Caption="Titel">
-                        <DxTextBox @bind-Text="editModel.CatTitle" Width="100%" />
+                        <DxTextBox @bind-Text="editModel.CatTitle"
+                                   @bind-Text:after="OnTitleChanged"
+                                   BindValueMode="BindValueMode.OnInput"
+                                   Width="100%" />
                     </DxFormLayoutItem>
                     <DxFormLayoutItem Caption="Kennung">
                         <DxTextBox @bind-Text="editModel.CatString" Width="100%" />
@@ -161,14 +164,25 @@ else
             return;
         }
 
-        if (e.FieldIdentifier.FieldName == nameof(CatalogEditModel.UpdateProcedure) ||
-            e.FieldIdentifier.FieldName == nameof(CatalogEditModel.CatTitle))
+        if (e.FieldIdentifier.FieldName == nameof(CatalogEditModel.UpdateProcedure))
         {
             validationMessageStore.Clear();
             editContext.NotifyValidationStateChanged();
         }
     }
 
+    private void OnTitleChanged()
+    {
+        if (validationMessageStore == null || editContext == null)
+        {
+            return;
+        }
+
+        var field = new FieldIdentifier(editContext.Model, nameof(CatalogEditModel.CatTitle));
+        validationMessageStore.Clear(field);
+        editContext.NotifyValidationStateChanged();
+    }
+
     private void OnCustomizeEditModel(GridCustomizeEditModelEventArgs e)
     {
         if (e.IsNew)
diff --git a/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor b/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor
index 999a8cc..e59fd81 100644
--- a/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor
+++ b/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor
@@ -54,7 +54,10 @@ else
                 @{ SetEditContext(editFormContext.EditContext); var editModel = (CatalogEditModel)editFormContext.EditModel; }
                 <DxFormLayout ColCount="2">
                     <DxFormLayoutItem Caption="Titel">
-                        <DxTextBox @bind-Text="editModel.CatTitle" Width="100%" />
+                        <DxTextBox @bind-Text="editModel.CatTitle"
+                                   @bind-Text:after="OnTitleChanged"
+                                   BindValueMode="BindValueMode.OnInput"
+                                   Width="100%" />
                     </DxFormLayoutItem>
                     <DxFormLayoutItem Caption="Kennung">
                         <DxTextBox @bind-Text="editModel.CatString" Width="100%" />
@@ -120,14 +123,25 @@ else
             return;
         }
 
-        if (e.FieldIdentifier.FieldName == nameof(CatalogEditModel.UpdateProcedure) ||
-            e.FieldIdentifier.FieldName == nameof(CatalogEditModel.CatTitle))
+        if (e.FieldIdentifier.FieldName == nameof(CatalogEditModel.UpdateProcedure))
         {
             validationMessageStore.Clear();
             editContext.NotifyValidationStateChanged();
         }
     }
 
+    private void OnTitleChanged()
+    {
+        if (validationMessageStore == null || editContext == null)
+        {
+            return;
+        }
+
+        var field = new FieldIdentifier(editContext.Model, nameof(CatalogEditModel.CatTitle));
+        validationMessageStore.Clear(field);
+        editContext.NotifyValidationStateChanged();
+    }
+
     private void OnCustomizeEditModel(GridCustomizeEditModelEventArgs e)
     {
         if (e.IsNew)