Fix combobox can't open dropdown when the editable textbox of it has …

…the focus
fluentribbon · Mar 13, 2023 · e7151b2 · e7151b2
1 parent 9a66e30
commit e7151b2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/Fluent.Ribbon/Controls/ComboBox.cs b/Fluent.Ribbon/Controls/ComboBox.cs
@@ -658,7 +658,11 @@ protected override void OnDropDownOpened(EventArgs e)
 
         if (this.SelectedItem is not null)
         {
-            Keyboard.Focus(this.ItemContainerGenerator.ContainerOrContainerContentFromItem<IInputElement>(this.SelectedItem));
+            var selectedItemContainser = this.ItemContainerGenerator.ContainerOrContainerContentFromItem<IInputElement>(this.SelectedItem);
+            if (selectedItemContainser is not null)
+            {
+                Keyboard.Focus(selectedItemContainser);
+            }
         }
 
         this.focusedElement = Keyboard.FocusedElement;