I want to customize the Telerik Header Context Menu by adding additional button to it and I want to change labels of existing buttons. How can I do it? I know that I can set custom CSS class, but this is not I'm looking for.
You can try something like that:
Protected Overloads Overrides Sub OnPreRenderComplete(ByVal e As EventArgs)Dim menu As RadContextMenu = RadGrid1.HeaderContextMenu
Dim item As New RadMenuItem()
item.Text = "Format"
item.Attributes("ColumnName") = String.Empty
item.Attributes("TableID") = String.Empty
BuildColumnsMenu(item, RadGrid1.MasterTableView)
menu.Items.Add(item)
MyBase.OnPreRenderComplete(e)End Sub