Cell borders disappear for GridViewCommandColumn

[Per]

Hi,

I have a GridViewCommandColumn with buttons that are not always visible (using e.CellElement.Visibility = ElementVisibility.Hidden). When they are not visible the border lines around the cell disappear (see image 1).

I tried to fix this using EnableCustomDrawing=True and subscribing to the CellPaint event and draw the border manually, but this does not seem to work. In fact the CellPaint event seem to happen BEFORE the buttons is drawn. I came to this conclusion by drawing a black border around all cells, and got the result in image 2.

How can I fix this missing border problem?

/Per

[Hristo]

Hi Per,

Thank you for writing.

You can directly access the button element and set its Visibility property. A suitable place for performing this task is the handler of the CellFormatting event. Please check my code snippet below: 

private void radGridView1_CellFormatting(object sender, CellFormattingEventArgs e)
{
    GridCommandCellElement commandCell = e.CellElement as GridCommandCellElement;
    if (commandCell != null)
    {
        if (e.RowIndex % 2 == 0)
        {
            commandCell.CommandButton.Visibility = Telerik.WinControls.ElementVisibility.Collapsed;
        }
        else
        {
            commandCell.CommandButton.ResetValue(LightVisualElement.VisibilityProperty, Telerik.WinControls.ValueResetFlags.Local);
        }

    }
}

I am also sending you a screenshot showing the result on my end.

I hope this helps. Please let me know if you need further assistance.

Regards,
Hristo
Telerik by Progress

[Per]

Thank you!

Calling ResetValue when the button is visible solved the problem...

/Per