ToolTipController 事件触发显示时 避免闪烁的处理方法

private DevExpress.Utils.ToolTipController toolTipController1;
private DevExpress.Utils.ToolTipController toolTipController2;
private ToolTipControllerShowEventArgs args;

/// add by Tony 2016/4/5
this.toolTipController1 = new DevExpress.Utils.ToolTipController();
this.toolTipController1.AllowHtmlText = true;
this.toolTipController1.AutoPopDelay = 50000;
this.toolTipController1.CloseOnClick = DevExpress.Utils.DefaultBoolean.True;
this.toolTipController1.ShowBeak = true;
this.toolTipController1.ToolTipLocation = DevExpress.Utils.ToolTipLocation.RightCenter;
this.toolTipController1.ToolTipStyle = DevExpress.Utils.ToolTipStyle.Windows7;
this.toolTipController1.ToolTipType = DevExpress.Utils.ToolTipType.SuperTip;
/// add by Tony 2016/4/6
this.toolTipController2 = new DevExpress.Utils.ToolTipController();
this.toolTipController2.AllowHtmlText = true;
this.toolTipController2.AutoPopDelay = 50000;
this.toolTipController2.CloseOnClick = DevExpress.Utils.DefaultBoolean.True;
this.toolTipController2.ShowBeak = true;
this.toolTipController2.ToolTipLocation = DevExpress.Utils.ToolTipLocation.RightCenter;
this.toolTipController2.ToolTipStyle = DevExpress.Utils.ToolTipStyle.Windows7;
this.toolTipController2.ToolTipType = DevExpress.Utils.ToolTipType.SuperTip;

private void Gantt_OnTimeItemAreaMouseMove(object sender, MouseEventArgs e)
{
if (args == null)
{

args = CreateShowArgs(sbuText.ToString());
// 显示ToolTip 这里不可以用控件的坐标.要用屏幕的坐标Control.MousePosition
toolTipController2.ShowHint(args, System.Windows.Forms.Control.MousePosition);
}
}

public void Gantt_OnTimeItem_Hoover(Gantt aGantt, TimeItemEventArgs e)
{
if (e.TimeItem == null)
{
toolTipController1.HideHint();
args = null;
return;
}

if (sbuText.Length > 0)
{
// 获取显示ToolTip事件实例
args = CreateShowArgs(sbuText.ToString());
// 显示ToolTip 这里不可以用控件的坐标.要用屏幕的坐标Control.MousePosition
toolTipController1.ShowHint(args, System.Windows.Forms.Control.MousePosition);
}
sbuText.Length = 0;
}