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.