Hello, Cesar, RadMultiColumnComboBoxElement
, which is used as an editor in RadGridView
, offers the CreatePopupForm
method which can be overridden in a derivative. Thus, you can create a custom RadMultiColumnComboBoxElement
and override its CreatePopupForm
method where you can construct your own MultiColumnComboPopupForm
. The custom editor can be applied in the EditorRequired
event that RadGridView
Another suitable control that can be hosted in a custom editor by using a RadHostItem
. It allows you to show any predefined or custom controls in its popup. Additional information about RadPopupEditor
is available here: https://docs.telerik.com/devtools/winforms/controls/editors/popupeditor/popupeditor
Feel free to use this approach which suits your requirements best.
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Dess | Tech Support Engineer, Sr.
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