webclient

How to read a WebClient response after posting data?

断了今生、忘了曾经 提交于 2019-12-04 22:40:39
Behold the code: using (var client = new WebClient()) { using (var stream = client.OpenWrite("http://localhost/", "POST")) { stream.Write(post, 0, post.Length); } } Now, how do I read the HTTP output? It looks like you have a byte[] of data to post; in which case I expect you'll find it easier to use: byte[] response = client.UploadData(address, post); And if the response is text, something like: string s = client.Encoding.GetString(response); (or your choice of Encoding - perhaps Encoding.UTF8 ) If you want to keep streams everywhere and avoid allocating huge arrays of bytes, which is good

Get original filename when downloading with WebClient

允我心安 提交于 2019-12-04 22:32:29
Is there any way to know the original name of a file you download using the WebClient when the Uri doesn't contain the name? This happens for example in sites where the download originates from a dynamic page where the name isn't known beforehand. Using my browser, the file gets the orrect name. But how can this be done using the WebClient? E.g. WebClient wc= new WebClient(); var data= wc.DownloadData(@"www.sometime.com\getfile?id=123"); Using DownloadFile() isn't a solution since this method needs a filename in advance. You need to examine the response headers and see if there is a content

why my WebClient upload file code hangs?

你说的曾经没有我的故事 提交于 2019-12-04 20:37:27
I am using VSTS 2008 + C# + .Net 3.5 + ASP.Net + IIS 7.0 to develop a Windows Forms application at client side to upload a file, and at server side I receive this file using an aspx file. I find my client side application will hang after click the button to trigger upload event. Any ideas what is wrong and how to solve? Thanks! Client side code, public partial class Form1 : Form { private static WebClient client = new WebClient(); private static ManualResetEvent uploadLock = new ManualResetEvent(false); private static void Upload() { try { Uri uri = new Uri("http://localhost/Default2.aspx");

how to get a full html source?

笑着哭i 提交于 2019-12-04 17:14:19
my name is loran and i'm using asp.net - c# in my project. i'm trying getting the exactly html source from a facebook page: ( http://www.facebook.com/search.php?q=loranzur%40yahoo.com ). i'm trying to get the id number into a string variable (in the source you can search for : Profile.php?id= ). i succeed to copy the source to a string variable using WebClient or HttpWebRequest, but the resaults is not the same as i open the "view source" by myself. the source that i copied to the the variable was missing a lot of data (the id number is one example). is there any option to copy the full source

Client Web Browser Behavior When Handling 301 Redirect

与世无争的帅哥 提交于 2019-12-04 15:56:01
问题 The RFC seems to suggest that the client should permanently cache the response: http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html 10.3.2 301 Moved Permanently The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. This response

How to implement a Timeout on WebClient.DownloadFileAsync

我只是一个虾纸丫 提交于 2019-12-04 15:28:47
So I thought Webclient.DownloadFileAysnc would have a default timeout but looking around the documentation I cannot find anything about it anywhere so I'm guessing it doesn't. I am trying to download a file from the internet like so: using (WebClient wc = new WebClient()) { wc.DownloadProgressChanged += ((sender, args) => { IndividualProgress = args.ProgressPercentage; }); wc.DownloadFileCompleted += ((sender, args) => { if (args.Error == null) { if (!args.Cancelled) { File.Move(filePath, Path.ChangeExtension(filePath, ".jpg")); } mr.Set(); } else { ex = args.Error; mr.Set(); } }); wc

WebClient.DownloadStringAsync throwing Security Exception in Silverlight

纵饮孤独 提交于 2019-12-04 15:08:41
First time using Silverlight ever! Following an online tutorial. I'm creating an app which allows the user to search for stories from the Digg website using a WebClient and displays them in a data grid in a Silverlight control. Here's the code: private void btnSearch_Click(object sender, RoutedEventArgs e) { string topic = txtTopic.Text; string diggUrl = String.Format("http://services.digg.com/stories/topic/{0}?count=20&appkey=http%3A%2F%2Fscottgu.com", topic); WebClient diggService = new WebClient(); diggService.DownloadStringCompleted += new DownloadStringCompletedEventHandler(diggService

WebClient upload file error

流过昼夜 提交于 2019-12-04 14:03:09
I am using VSTS 2008 + C# + .Net 3.5 + ASP.Net + IIS 7.0 to develop a console application at client side to upload a file, and at server side I receive this file using an aspx file. From client side, I always notice (from console output) the upload percetage of the file increase from 1% to 50%, then to 100% suddenly. Any ideas what is wrong? Here is my client side code, class Program { private static WebClient client = new WebClient(); private static ManualResetEvent uploadLock = new ManualResetEvent(false); private static void Upload() { try { Uri uri = new Uri("http://localhost/Default.aspx"

HtmlUnit Android problem with WebClient

你。 提交于 2019-12-04 12:52:55
HtmlUnit is amazing, in Java at least I have had no problems with it. Unfortunately when switching the code over to the Android platform, it is giving me errors when I try to create a web-client. import android.app.Activity; import android.os.Bundle; import com.gargoylesoftware.htmlunit.WebClient; public class AndroidTestActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final WebClient webClient = new WebClient(); } } Warnings it gives me

Add request headers with WebClient C#

蓝咒 提交于 2019-12-04 12:14:25
问题 I have the following code with which I download a web-page into a byte array and then print it with Response.Write: WebClient client = new WebClient(); byte[] data = client.DownloadData(requestUri); /*********** Init response headers ********/ WebHeaderCollection responseHeaders = client.ResponseHeaders; for (int i = 0; i < responseHeaders.Count; i++) { Response.Headers.Add(responseHeaders.GetKey(i), responseHeaders[i]); } /***************************************************/ Besides of the