如何使 控制項 不閃爍

#region 建構子  

private PropertyInfo _PropertyInfo = null;  

public LaserMotion()  

{  

    this.DoubleBuffered = true;  

    this.SetStyle(  

                ControlStyles.UserPaint |  

                ControlStyles.AllPaintingInWmPaint |  

                ControlStyles.DoubleBuffer, true);   

    this._PropertyInfo = this.GetType().GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);  

    foreach (Control rootCtrl in this.Controls)  

    {  

        this._PropertyInfo.SetValue(rootCtrl, true, null);   

        if (rootCtrl.HasChildren)  

            SearchControl(rootCtrl);  

    }  

}  

#endregion   

#region 遞迴  

void SearchControl(Control Ctrl)  

{  

    foreach (Control rootCtrl in Ctrl.Controls)  

    {  

        Debug.WriteLine(rootCtrl.Name + " 建立DoubleBuffer");  

        this._PropertyInfo.SetValue(rootCtrl, true, null);  

        if (rootCtrl.HasChildren)  

            SearchControl(rootCtrl);  

        else  

            break;  

    }  

}  

#endregion  

public Form1()  

{  

    InitializeComponent();  

    LaserMotion()  //在InitializeComponent()下面加入這行  

}