How to Open DropDownList editor in RadGridView with a Single Click

Updated over 6 months ago

Environment

Product Version	Product	Author
2021.1.122	RadGridView for WinForms	Desislava Yordanova

Description

When you click a cell in RadGridView, it gets selected. When you click the same cell again, it enters edit mode. In case a RadDropDownListEditor is activated, you will need to click once again the arrow button to open the pop up. This article demonstrates how to activate the editor and open the drop down with just a single click.

Default behavior	Improved behavior

Solution

The CellEditorInitialized event is appropriate for forcing the drop down once the editor is being activated and initialized. Please have a look at the below code snippet:

C#

private void radGridView1_CellEditorInitialized(object sender, GridViewCellEventArgs e)
{
     RadDropDownListEditor editor = e.ActiveEditor as  RadDropDownListEditor;
     if (editor!=null)
     {
         RadDropDownListEditorElement el = editor.EditorElement as RadDropDownListEditorElement;
         el.ShowPopup();
     }
}

VB.NET

Private Sub radGridView1_CellEditorInitialized(ByVal sender As Object, ByVal e As GridViewCellEventArgs)
    Dim editor As RadDropDownListEditor = TryCast(e.ActiveEditor, RadDropDownListEditor)

    If editor IsNot Nothing Then
        Dim el As RadDropDownListEditorElement = TryCast(editor.EditorElement, RadDropDownListEditorElement)
        el.ShowPopup()
    End If
End Sub

 

See Also

• Default editors in GridView