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private void gridControl1_GridControlMouseDown(object sender, Syncfusion.Windows.Forms.CancelMouseEventArgs e) { int row, col; Point pt = new Point(e.MouseEventArgs.X, e.MouseEventArgs.Y); if(this.gridControl1.PointToRowCol(pt, out row, out col, -1) && row == 0 && col > 0) { Console.WriteLine("MouseDown on col header"); } }