c# winform中listView怎么异步加载网络图片？

Question

http://chunniux.blog.163.com/blog/static/148497192011111924134844/并行编程 ，，可以参考

Answer 1

imageList1.Images.Add( WebRequest.Create(new Uri("图片地址")).GetResponse().GetResponseStream() );我是在 for 循环中添加图片的，请问这样怎么用线程呢？现在因为调用了webRequest引起阻塞！

Answer 2

Parallel.For(0, matARows,  i =>
            {
            });这个循环里的每一个都会开个自己执行啊

Answer 3

采用    // req1.BeginGetResponse(new AsyncCallback(GetResponseCallBack), temp1);begingetresponse
异步加载
   /// <summary>
        /// 异步回调方法
        /// </summary>
        /// <param name="ia"></param>
        public void GetResponseCallBack(IAsyncResult ia)
        {            ///线程锁
            lock (lockThis)
            {
                ImageListReq temp1 = ia.AsyncState as ImageListReq;
                HttpWebRequest req = temp1.Req;                QzonePhotoInfo pinfo = temp1.Pinfo;
                HttpWebResponse resp = req.EndGetResponse(ia) as HttpWebResponse;
                Image img1 = Image.FromStream(resp.GetResponseStream());
                imageList1.Images.Add(pinfo.Name, img1);
                
            }        }