On my RadContextMenu, there are multiple RadMenuItem with CheckOnClick = True. Is it possible to do multiple check without the context menu closed up? like while holding Shift button and check multiple RadMenuItem?
When you click an item in RadContextMenu, it is expected to close the popup. In order to prevent closing it, you can simply cancel the RadContextMenu.DropDownClosing event in certain cases. Thus, you will be able to to check several menu items. Please refer to the following code snippet which result is illustrated in the attached gif file. When you click a menu item, the popup remains opened. If you need to close it, click outside the context menu: