I am trying to set value of referer parameter of httpwebrequest header, but it is giving error- Function that I am using (C#): webRequest.Headers.Set(HttpRequestHeader.Referer, "http://www.microsoft.com"); Error: Invalid parameters. A required parameter is not found or contains invalid value. ...
What is the best practice for getting a webrequest asynchronously? I want to download a page from the internet (doesn't matter what) and avoid blocking a thread as much as possible. Previously I believed that it was enough to just use the 'BeginGetResponse' and 'EndGetResponse' pair. But on closer inspection I also see that there is t...
I need to generate a Excel sheet during RunTime on a ItemCommand_click event in a GridView and transfer the file and then re-bind the GridView with the status change. As we redirect the response with File transfer , How could I update the GridView? ...
I want to connect to a server using HTTP, send a string to it and recieve the response string from the server. Any ideas about how to connect to server by the url, send and recieve message from it? ...
Hi all. Does anyone know how to screen scrape web-sites that use digest http authentication? I use code like this: var request = (HttpWebRequest)WebRequest.Create(SiteUrl); request.Credentials=new NetworkCredential(Login, Password) I'm able to access the site's mainpage, but when I try to surf to any other pages (using another request...
I have a web application that is polling a web service on another server. The server is located on the same network, and is referenced by an internal IP, running on port 8080. Every 15 secs, a request is sent out, which receives an xml response with job information. 95% of the time, this works well, however at random times, the reques...
Making a request to a RESTful service in Silverlight with HttpWebRequest works well so long as I don't add any headers to the request. As soon as I add a header using code like this var webReq = (HttpWebRequest)WebRequest.Create(new Uri(_RemoteAddress, "GetProviderMetadata")); webReq.Method = HttpMethodType.Get; webReq.Headers["SomeTok...
This is not the first time I'm using this method to send a POST request, and I never had any problems: public static Stream SendPostRequest(Uri uri, byte[] postData) { var request = WebRequest.Create(uri); request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request....
Hello, I have done this code to login,to retrieve and show a webpage : // login info array string postData = "user_name=tler"; postData += "&user_password=lodvader"; byte[] data = Encoding.ASCII.GetBytes(postData); // web request WebRequest req = WebRequest.Create("http://www.lol.com/login.php...
Hey Folks, I'm trying to POST data to an external url using HttpWebRequest, then i need to redirect the user to the external url where which i just POSTed my data, can this be achieved on the first place ? ...
I'm currently downloading an HTML page, using the following code: Try Dim req As System.Net.HttpWebRequest = DirectCast(WebRequest.Create(URL), HttpWebRequest) req.Method = "GET" Dim resp As Net.HttpWebResponse = DirectCast(req.GetResponse(), Net.HttpWebResponse) Dim stIn As IO.StreamReader = New IO.StreamReader(resp.GetResponseStre...
I have a rather simple program which takes in a URL and spits out the first place it redirects to. Anyhow, I've been testing it on some links and noticed gets 400 errors on some urls. I tried testing such urls by pasting it into my browser and that worked fine. static string getLoc(string curLoc, out string StatusDescription, int ...
Hi, I have a WCF Service declared as follows: [OperationContract, XmlSerializerFormat] [WebInvoke(UriTemplate = "ProessUpload", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml)] void ProcessUpload(ProductConfig stream); I am trying to call this service using WebClient but I am always getting a response...
Hi, I've got a problem here. I've got an ASP.net website hosting a silverlight 2 application. I'd like the site to communicate to and fro from the silverlight app, and I'm doing this via http requests. Incidentally, if anyone knows a better way, please do tell me. My server's got the following http listener set up. I copied this from a...
I'm using the HttpWebRequest object to make a get call to a site/web service that uses XML/XSLT as its front end. When I view the source in Firefox the XML comes up, but when I make the request in my program the transformed document is returned to me. As the transformed document is very useless to me, how can I make the request and get...
here's my method: private static void UpdatePref(List<EmailPrefer> prefList) { if(prefList.Count > 0) { foreach (EmailPref pref in prefList) { UpdateEmailRequest updateRequest = new UpdateEmailRequest(pref.ID.ToString(), pref.Email, pref.ListID.ToString()); UpdateEmailResponse updateRespon...
public string GetArtistThumbnail(string artistName) { var request = WebRequest.Create("http://ws.audioscrobbler.com/2.0/?method=artist.getinfo&artist=" + artistName + "&api_key=" + APIKey) as HttpWebRequest; using (var response = request.GetResponse() as HttpWebResponse) { var ds = new Da...
I am trying to do a request that accepts a compressed response var request = (HttpWebRequest)HttpWebRequest.Create(requestUri); request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip,deflate"); I wonder if when I add the second line I will have to handle the decompression manually. ...
Very occasionally when making a http request, I am waiting for an age for a response that never comes. What is the recommended way to cancel this request after a reasonable period of time? ...
I am trying to use an HttpWebRequest object in Silverlight 2.0, to do a "POST". Upon return from the BeginGetStream method I end up with the following error : Message: "Specified method is not supported." StackTrace: " at System.Net.BHWRAsyncResult.get_AsyncWaitHandle()" Here's some sample code: Note I have used fiddler t...