How to increase the column width of the rowheader in WinForms GridGroupingControl?

2 mins read

Column width of rowheader

The column width of the RowHeaders can be increased, based on its values in the WinForms GridGroupingControl, through the QueryColWidth event. The change of row header width is used in the NumberedRowHeaders. The following code example demonstrates the same.

// Increases the ColWidth of the NumberedRowHeader.
this.gridGroupingControl1.TableModel.QueryColWidth += TableModel_QueryColWidth;

void TableModel_QueryColWidth(object sender, GridRowColSizeEventArgs e)
{
    if (e.Index == 0)
    {
        // Increases the RowHeader width based on digit count.
        e.Size = 30;
        e.Handled = true;
    }
}

'Increases the ColWidth of the NumberedRowHeader.
AddHandler Me.gridGroupingControl1.TableModel.QueryColWidth, AddressOf TableModel_QueryColWidth

Private Sub TableModel_QueryColWidth(ByVal sender As Object, ByVal e As GridRowColSizeEventArgs)
    If e.Index = 0 Then
        'Increases the RowHeader width based on digit count.
        e.Size = 30
        e.Handled = True
    End If
End Sub