Visible text versus actual text

[Leon Schwartz]

Hi, I was wondering if there was a way to programmatically tell if the text in a given cell is being truncated (trimmed). I am working on something base on your EllipsisCell example, but I only want to show the ellipsis button if the text in that cell is indeed longer than what can be shown. This is in a data-bound grid, if it matters.

TIA.

[Administrator]

You will have to measure teh string yourself. One place you can try to do this is to add an OnDraw override to the EllipsisCellRenderer class. Here is a try at it. It probably needs tweaking some.

protected override void OnDraw(Graphics g, Rectangle clientRectangle, int rowIndex, int colIndex, GridStyleInfo style)
{
	Rectangle rect = new Rectangle(clientRectangle.X, clientRectangle.Y, clientRectangle.Width + this.Model.ButtonBarSize.Width, clientRectangle.Height);
	int width =  (int) g.MeasureString(style.Text, style.GdipFont).Width;
			
	if(width < rect.Width)
	{
		style.ShowButtons = GridShowButtons.Hide;
		GridStaticCellRenderer.DrawText(g, style.Text, style.GdipFont, clientRectangle, style, style.TextColor, false); 
	}
	else
		base.OnDraw (g, clientRectangle, rowIndex, colIndex, style);
}

[Leon Schwartz]

Thanks Clay! Didn''t even need to modify your code!