GridView - end edit on current cell changed

Hello, Marian,

RadGridView manages user mouse and keyboard input over its rows by GridRowBehavior. You can customize the GridRowBehavior in a way that suits your requirements and your business needs. Please refer to the following article for more information and examples: Row behaviors - WinForms GridView Control - Telerik UI for WinForms

I prepared a custom GridRowBehavior which achieves the behavior that you want. The cell enters into edit mode when you click over a selected cell, when you change the selection, the cell ends editing. Now, RadGridView behaves similarly as MS DataGridView. As a result, the CellBeginEdit event triggers for the new cell as you expect. 

public class CustomGridDataRowBehavior : GridDataRowBehavior
{
    protected override bool OnMouseDownLeft(MouseEventArgs e)
    {
        GridCellElement cellElement = this.GetCellAtPoint(e.Location);
		if (cellElement != null)
		{
            this.GridViewElement.EditorManager.CloseEditor();
        }

        return base.OnMouseDownLeft(e);
    }
}

Do not forget to register this new behavior in your grid. Feel free to modify or extend this behavior if needed.

I hope this helps. If you have other questions, please let me know. 

Regards,
Nadya | Tech Support Engineer
Progress Telerik