Sub Dgv1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles Dgv1.CellContentClick
If Me.Dgv1.CurrentCell.OwningColumn.Name = "theColumn" Then
If CType(Me.Dgv1.CurrentCell, DataGridViewCheckBoxCell).Value = True Then
'the what you want to do.
End If
End If
End Sub