Hello Suman,

Thank you for contacting Infragistics.

I've attached a sample project which demonstrates how to get the functionality you're looking for.  I added two radio buttons to the form to be used as the editing and rendering controls for the ControlContainerEditor object I created in code and set as the column's Editor property in the UltraGrid.InitializeLayout event handler.  I then handled the UltraGrid.CellChange event and set the value of every other cell in the first column to false if the event was being fired for a cell in the first column and the value being edited was True.