Checkbox column shifting

[Jeremy Murtishaw]

Telerik,
I have a grid where the first column is a checkbox column.  When a checkbox is checked in any row for the first time, that checkbox shifts to the right within the column by a pixel or two.  Even if the checkbox itself isn't checked, but a mouseclick occurs within the cell, the same effect occurs.  I've experimented with multiple columns widths, thinking maybe I wasn't allowing enough room for the entire control, but nothing has worked.  Is this a known issue with a solution?

Thanks,
Jeremy

[Jack]

Hi Jeremy Murtishaw,

Thank you for reporting this issue. I updated your Telerik points and we will address it in our upcoming release - Q1 2010. You should use a custom checkbox cell to work around the issue. Here is the code:

void radGridView1_CreateCell(object sender, GridViewCreateCellEventArgs e)
{
    if (e.CellType == typeof(GridCheckBoxCellElement))
    {
        e.CellType = typeof(CustomCheckBoxCellElement);
    }
}

public class CustomCheckBoxCellElement : GridCheckBoxCellElement
{
    public CustomCheckBoxCellElement(GridViewColumn column, GridRowElement row): base(column, row)
    {
    }

    protected override Type ThemeEffectiveType
    {
        get { return typeof(GridCheckBoxCellElement); }
    }

    protected override SizeF ArrangeOverride(SizeF finalSize)
    {
        if (this.Children.Count > 0)
        {
            RectangleF clientRect = GetClientRectangle(finalSize);
            float editorHeight = this.Children[0].DesiredSize.Height;
            this.Children[0].Arrange(new RectangleF(clientRect.X + 1,
              (finalSize.Height - editorHeight) / 2,
              clientRect.Width - 2,
              editorHeight));
        }
        return finalSize;
    }
}

Best wishes,
Jack
the Telerik team

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