Hello, Jiang,
Usually, the tool-tip is displayed below the control. The easiest way to manipulate its position is to specify the ToolTipTextNeededEventArgs.
Offset property instead of creating a brand new instance of
RadToolTip and showing it programamtically. Thus, you are not expected to experience any issues with hiding the tool-tip which is shown by default.
private void radButton1_ToolTipTextNeeded(object sender, ToolTipTextNeededEventArgs e)
{
e.Offset = new System.Drawing.Size(20,20);
e.ToolTipText = "Telerik button";
}
I hope this information helps.
Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik
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