Custom GridView ComboBox Column Event

[Usman]

Heloo, 
I have added a combo box column programmatically with a static data source.
Now i need that whenever i select any of the item a specific function should be invoked.
I have tried with different events but didnt found a solution.
Please Help

var dg = new GridViewComboBoxColumn
               {
                   DataSource = new[] { "Edit", "Delete" },
                   HeaderText = "Action",
                   Name = "col_Action",
                   Width = 80,
                   AllowResize = true,
                   FieldName = "gv_cmb_Action",
                   SortOrder = RadSortOrder.None,
                   AllowFiltering = false,
                   AllowGroup = false,
                   AllowSort = false,
                   ReadOnly = false
               };

            if (gv_Criteria.ColumnCount != 9)
            {
                gv_Criteria.Columns.Insert(8, dg);
            }

[Nikolay]

Hello Usman,

If I understand your requirement correctly, you want to execute some functions the moment you change the selection in the drop-down, without closing the editor. If this is the case, you should subscribe to the CellBeginEdit event of RadGridView in order to access the editor, and then subscribe to the SelectedIndexChanged event of the editor:

this.gv_Criteria.CellBeginEdit += new GridViewCellCancelEventHandler(gv_Criteria_CellBeginEdit);

void gv_Criteria_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
{
    if (e.Column.Name == "col_Action")
    {
        ((RadDropDownListEditorElement)((RadDropDownListEditor)e.ActiveEditor).EditorElement).SelectedIndexChanged -= new Telerik.WinControls.UI.Data.PositionChangedEventHandler(Form1_SelectedIndexChanged);
        ((RadDropDownListEditorElement)((RadDropDownListEditor)e.ActiveEditor).EditorElement).SelectedIndexChanged += new Telerik.WinControls.UI.Data.PositionChangedEventHandler(Form1_SelectedIndexChanged);
    }
}

void Form1_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)
{
    RadDropDownListEditorElement editor = sender as RadDropDownListEditorElement;
    if (editor != null)
    {
        if (editor.SelectedItem != null)
        {
            if (editor.SelectedItem.Text == "Edit")
            {
                Console.WriteLine("Edit Function");
            }
            else if (editor.SelectedItem.Text == "Delete")
            {
                Console.WriteLine("Delete Function");
            }
        }
    }
}

Note that for optimization purposes we are caching and reusing the same RadDropDownListEditor, so you need first to unsubscribe from the event before subscribing to it again.

I hope this helps.Regards,
Nikolay
Telerik