SOS !Please help me ! asp.net and c# 中gif图片处理

Question

public void TestAnimations()
        {
           // construct AutoResetEvent for signaling 揌i Button?br>            //  Appearance on the form                   ev = new AutoResetEvent(false);                   button1.Enabled = true;                //  Set up asynchronous callback trigger using        
               // the AutoResetEvent and a 20 second timeout period                   ThreadPool.RegisterWaitForSingleObject(
                        ev,
                        new WaitOrTimerCallback(WaitThreadFunc),
                        "Hi",
                        20000,
                        false
                        ); 
                // put each thread into the pool for running
                // each animated gif. Pass the name of the gif
                // file into the corresponding thread string[] GifFile = {"gif1.gif", "gif2.gif",
"gif3.gif"};                   for (int i = 0; i < 3; i++)
                  {
                    ThreadPool.QueueUserWorkItem(new
                         WaitCallback(this.RunAnimation),
                         (object)GifFile[i]);
                  }
            }
参考该例:http://www.c-sharpcorner.com/Code/2002/Nov/ThreadPoolGifs.asp