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Andrew Thompson
210
margin around button in an UltraWinGrid column
posted

Hi,

I'm displaying a column of buttons in an UltraWinGrid using ColumnStyle.Button and ButtonDisplayStyleAlways.

The button is sized to fill the entire cell and I need to have a margin of whitespace around the button so that it's slightly shorter than the row height and slightly narrower than the column width.  I can get roughly the appearance I need by using ' this.ultraGrid1.DisplayLayout.Override.CellSpacing = 5; ', but that affects all cells.  Is there a way to only adjust the CellSpacing for the column with the button in it?  Alternatively is there a way to add a margin around the button?  The ideal would be that the button has a top, left & right margin, but no bottom margin so that the bottom of the button is level with the bottom of the row.

Thanks

Andy

  • 37774
    posted

     Andy,

    I don't think that there is any property that is more specific than the band-level CellSpacing (which is resolved from the override), but you could certainly accomplish this with a creation filter:

     private class CF : IUIElementCreationFilter
    {
        #region IUIElementCreationFilter Members

        public void AfterCreateChildElements(UIElement parent)
        {
            CellUIElement cellElement = parent as CellUIElement;
            if (cellElement != null && cellElement.Column.Key == "Button")
            {
                CellButtonUIElement buttonElement = cellElement.GetDescendant(typeof(CellButtonUIElement)) as CellButtonUIElement;
                if (buttonElement != null)
                {
                    Rectangle originalRect = buttonElement.Rect;
                    buttonElement.Rect = new Rectangle(
                        new Point(originalRect.Location.X + 2, originalRect.Location.Y + 2),
                        new Size(originalRect.Size.Width - 4, originalRect.Size.Height - 2));
                }
            }
        }

        public bool BeforeCreateChildElements(UIElement parent)
        {
            return false;
        }

        #endregion
    }

    this.ultraGrid1.CreationFilter = new CF();

    -Matt