Dev自带缓冲窗体效果的实现和控制

废话不多说代码送上：

       //添加// C:\Program Files\DevExpress 2011.2\Components\Bin\Framework\DevExpress.XtraEditors.v11.2.dll引用
       //缓冲控制对象
        private static SplashScreenManager _splashMgr = null;
        private object _lockobj = new object();
        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 显示缓冲窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            //ShowSplan("正在加载数据");
            ShowWaitingWithTimer("正在加载数据", 8000);
        }

        /// <summary>
        /// 关闭缓冲窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            HideWaiting();
        }
        /// <summary>
        /// 显示缓冲窗体
        /// </summary>
        /// <param name="str"></param>
        private void ShowSplan(string str)
        {
            lock(_lockobj)
            {
                if (_splashMgr==null)
                {
                  
                    //创建缓冲窗体实例，如果已创建实例则跳过这一步
                    //WaitForm1（DEV窗体）
                    _splashMgr = new SplashScreenManager(typeof(WaitForm1), new SplashFormProperties());
                    _splashMgr.Properties.UseFadeInEffect=false;
                    _splashMgr.Properties.UseFadeOutEffect=false;
                }

                //指定缓冲窗体的父窗体对象
                _splashMgr.Properties.ParentForm=this;
                if (!_splashMgr.IsSplashFormVisible)
             {
             _splashMgr.ShowWaitForm();
             }
                _splashMgr.SetWaitFormDescription(str);
            }
        }

        protected void HideWaiting()
        {
            lock (_lockobj)
            {
                if (_splashMgr==null)
                {
                    return;
                }
                
                //当前正在显示缓冲界面，则关闭
                if (_splashMgr.IsSplashFormVisible)
                {
                    _splashMgr.CloseWaitForm();
                }
            }
       
        }

        protected static System.Windows.Forms.Timer WaitingTimer = null;
        /// <summary>
        /// 显示缓冲窗体(通过timer控件缓冲窗体的关闭)
        /// </summary>
        /// <param name="msg"></param>
        /// <param name="interval"></param>
        protected void ShowWaitingWithTimer(string msg, int interval)
        {
            this.ShowSplan(msg);

            //创建计时器
            if (WaitingTimer==null)
            {
                WaitingTimer = new Timer();
                WaitingTimer.Tick += (s, e1) =>
                {
                    HideWaiting();
                    WaitingTimer.Stop();
                };
            }

            //开启
            WaitingTimer.Interval = interval < 200 ? 500 : interval;
            WaitingTimer.Start();
        }

（拓展一下）实际开发中在基类窗体上完成上述功能，这样我们在子类窗体中就可以创建和控制缓冲窗体了.