DataGridView.SetSelectedColumnCore Method (Int32, Boolean)
Changes the selection state of the column with the specified index.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
columnIndex is less than 0 or greater than the number of columns in the control minus 1.
The DataGridView control uses this method whenever it changes the selection state of a column. The selection state changes without regard to the current SelectionMode property value, and without changing the CurrentCell property value. This is useful when you want to implement your own selection modes.
Available since 2.0