VB.NET ค้นหาข้อมูล Column ใน DataGridView ได้ด้วยวิธีไหนบ้างครับ

    Public Function FindColumn(ByVal atControl As Control, ByVal colName As String) As DataGridViewColumn
 
        For Each ctl As Control In atControl.Controls
            If (TypeOf ctl Is DataGridView) Then
                Dim gridView As DataGridView = DirectCast(ctl, DataGridView)
 
                If (gridView.Columns.Contains(colName)) Then
                    Return gridView.Columns(colName)
                Else
                    Return Nothing
                End If
            ElseIf (TypeOf atControl Is IContainerControl) OrElse (atControl.Controls.Count > 0) Then
                Return Me.FindColumn(atControl, colName)
            End If
        Next
 
        Return Nothing
 
    End Function