Gets or sets the interval that must pass before a tooltip is displayed.
An integer value that specifies the delay, in milliseconds.
By default, a tooltip is displayed onscreen after a delay which is determined by the ToolTipController's settings (see the ToolTipController.InitialDelay and ToolTipController.ReshowDelay properties). The Interval property allows you to override these settings and provide a custom delay. If the Interval property is set to a positive value the delay will be determined by this property, not by the ToolTipController.
If the ToolTipControlInfo.ImmediateToolTip property is set to true the Interval property has no effect.