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KB Article A384
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How to get multi-line tooltips with a specific width

Description:
How to get multi-line tooltips with a specific width?

Answer:
By default, the maximum tooltip width is two thirds of the screen width. If you need shorter tooltips, you should handle the CalcSize event. Below is some sample code.

C#
private void toolTipController1_CalcSize(object sender, DevExpress.Utils.ToolTipControllerCalcSizeEventArgs e) {  
Size size = Size.Empty;  
Graphics g = CreateGraphics();  
try {  
size = g.MeasureString(e.ToolTip, toolTipController1.Style.Font, (int)Screen.GetWorkingArea(e.SelectedControl).Width * 1 /3).ToSize();  
} finally {  
g.Dispose();  
}  
e.Size = size;  
}

See Also:
How to customize the ToolTip for a TreeList cell
Showing a hint for a grid cell even if its content is completely visible
How to programmatically display a tooltip for a control via the ToolTipController component
How to display a hint for an active editor within the XtraGrid
How to display hints only for particular cells

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