webclient

What is the best way to set expect100continue when using WebClient(C#.NET). I have this code below, I still see 100 continue in the header. Stupid apache still complains with 505 error. string url = "http://aaaa.com"; ServicePointManager.Expect100Continue = false; WebClient service = new WebClient(); service.Credentials = new NetworkCredential("username", "password"); service.Headers.Add("Content-Type","text/xml"); service.UploadStringCompleted += (sender, e) => CompleteCallback(BuildResponse(e)); service.UploadStringAsync(new Uri(url), "POST", query); Note: If I put the above in a console app

I never used the WebClient before and I'm not sure if I should check the response from the server to know if the upload was successful or if I can let the file as uploaded if there is no exception. If I should check the response how can I do that? Parsing resposeHeaders property? Thanks in advance. The UploadFile method returns a byte[] that contains the response the remote server returned. Depending on how the server manages responses to upload requests (and error conditions (see note 1 below)) you will need to check that response. You can get the string response by converting it to a string,

Opening a public page from browser works fine. Downloading same page using WebClient throws - (403) Forbidden. What is going on here ? Here is quick copy/paste example (used on console app) to specific page on web: try { WebClient webClient = new WebClient(); string content = webClient.DownloadString("http://he.wikisource.org/wiki/%D7%A9%D7%95%D7%9C%D7%97%D7%9F_%D7%A2%D7%A8%D7%95%D7%9A_%D7%90%D7%95%D7%A8%D7%97_%D7%97%D7%99%D7%99%D7%9D_%D7%90_%D7%90"); } catch (Exception ex) { throw; } I've just tried it with Fiddler running to see the response and it returns the following notice with the

I am trying to use WebClient.UploadFile with a HTTPS URL but I am ending up with "System.IO.IOException: The handshake failed due to an unexpected packet format" The same code works perfectly fine with Http but the server that I am trying to hit has a perfectly fine ssl certificate. Here is anything relevant to the web call: var url = WebServiceCommunication.GetProtocolName() + "..."; //turns out to be "https://... var wc = new WebClient(); //I am adding: wc.Headers.Add(HttpRequestHeader.KeepAlive, "...") wc.Headers.Add(HttpRequestHeader.AcceptLanguage, "...") we.Headers.Add(HttpRequestHeader

I'm trying to download multiple files but it's not working as I hoped. Can someone tell me what's wrong with this script, because I've tried a lot of things and really don't know what to do anymore. public static void DownloadFile(string url) { WebClient client = new WebClient(); var name = url.Substring(url.LastIndexOf('/')).Remove(0, 1); foreach (var item in urls) { client.DownloadFile(item, "C:\\" + name); } } private void btnGo_Click(object sender, EventArgs e) { urls.Add("url1"); urls.Add("url2"); urls.Add("url3"); Parallel.ForEach(urls, new ParallelOptions { MaxDegreeOfParallelism = 10 }

So I just started learning C# last night. The first project I started was a simple Image-Downloader, which downloads all images of a website using HtmlElementCollection. Here's what I got so far: private void dl_Click(object sender, EventArgs e) { System.Net.WebClient wClient = new System.Net.WebClient(); HtmlElementCollection hecImages = Browser.Document.GetElementsByTagName("img"); for (int i = 0; i < hecImages.Count - 1; i++) { char[] ftype = new char[4]; string gtype; try { //filetype hecImages[i].GetAttribute("src").CopyTo(hecImages[i].GetAttribute("src").Length -4,ftype,0,4) ; gtype =

I have an event that takes about 10-30 seconds, namely downloading information from a page (with quite a lot of traffic), modifying it and then saving it somewhere onto the disk using WebClient. Because it takes such a long time, I want to add a progress bar or make an update label (which says something like updating..) to indicate the progress. Can someone guide me as to how I would do this? Is there any event in the WebClient I can use to handle this? If you're writing a Windows Forms client application (not a ASP.NET server-side component), showing the progress of a WebClient download can

I have a console application that sends a XML to a MVC application and receive another XML as a response. It works perfectly, but I want to add authorization (for obvious reasons). Here is the code from the console application: using (var wc = new WebClient()) { return GetXmlFromBytes( wc.UploadData("URL", GetBytesFromXml(xmlToSend)) ); } And here is the code from the MVC application: public ActionResult DoSomething() { XElement xml = XElement.Load(new System.IO.StreamReader(Request.InputStream)); var response = InsertDataFromXml(xml); return File(GenerateFileFromResponse, "text/xml", "result

I'm using WebBrowser control to navigate through a login page and download a file. Since I can't find a way to manage the download automatically with the control I'm using the WebClient class to try and achieve this. Problem is that since the WebClient isn't in the same context/session as the browser all i'm downloading is the Security Error screen. Any ideas on how I can pass the context of the WebBrowser session to the WebClient ? Laramie It should be simply a matter of emulating the cookies and headers in the WebBrowser session and re-using them to impersonate the session in WebClient, but