One way to implement the logic is by hooking up to the Pre_Render of the RadGrid. You have to check if both grids are in edit mode. This can be accomplished by checking if EditIndexes of the RadGrid is greater than 0. If both grids meet this condition you just have to select the update and cancel button of the outer grid and set Visible
. If not, you should set Visible
. Attached is a project which demonstrates this approach.
the Telerik team
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