Question

I think I have everything working so far. One error left if the local variable error for ‘req’ … its already been declared above System.Net.WebRequest req = null; but i’m trying to clear it before using for WebRequest req = WebRequest.Create… do I not need to do that?

while (listId.Items.Count > 0)
            {
                // making the first item as selected.
                listId.SelectedIndex = 0;

                foreach (object o in listProxy.Items)
                {
                    string strProxy = o as string;
                    WebProxy proxyObject = new WebProxy(strProxy, true); // insert listProxy proxy here
                    WebRequest.DefaultWebProxy = proxyObject;

                    string strURL = "http://www.zzzz.com"; // link from listId and insert here
                    System.Net.WebRequest req = null;

                    try
                    {
                        WebRequest req = WebRequest.Create(strURL + "/book.php?qid=" + listId.SelectedItem as string);
                        req.Proxy = proxyObject;
                        req.Method = "POST";
                        req.Timeout = 5000;

                    }
                    catch (Exception eq)
                    {
                        string sErr = "Cannot connect to " + strURL + " : " + eq.Message;
                        MessageBox.Show(sErr, strURL, MessageBoxButtons.OK, MessageBoxIcon.Stop);
                    }
                }

                // remove the selected item.
                listId.Items.RemoveAt(0);

                // refreshing the list.
                listId.Refresh();
            }

Answer 1

Change:

WebRequest req = WebRequest.Create(strURL + "/book.php?qid=" + listId.SelectedItem as string);

To:

   req = WebRequest.Create(strURL + "/book.php?qid=" + listId.SelectedItem as string);