In addition to specifying the ToolTip text to display for a control, you can also use this method to modify the ToolTip text for a control. Calling the ToolTip.SetToolTip(Control, string) method more than once for a given control does not specify multiple ToolTip text to display for a control, but instead changes the current ToolTip text for the control. To determine the ToolTip text that is associated with a control at run time, use the ToolTip.GetToolTip(Control) method.

As a general rule the text used should be short; however, you can insert line breaks by using the \r\n escape character sequence. Ampersands (&) in the text are handled as described by the ToolTip.StripAmpersands property.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0