private void linkLblFromUrl_MouseLeave(object sender, EventArgs e) { if (!controlToolTip && toolTipFromUrl != null && toolTipFromUrl.GetHandleCreated()) { toolTipFromUrl.RemoveAll(); IntSecurity.AllWindows.Assert(); try { toolTipFromUrl.Hide(this); } finally { System.Security.CodeAccessPermission.RevertAssert(); } } }