webclient

问题 If you are using it for simple purposes, WebClient is enough. Absence of Timeout you can inherit it and override it's GetWebRequest method easily: protected override WebRequest GetWebRequest(Uri address) { WebRequest request = base.GetWebRequest(address); request.Timeout = Timeout; return request; } If you are using it multithreaded way, you have to set MaxConnection by code or app.config: Improving performance of multithreaded HttpWebRequests in .NET You can parallelize it easily also: Best

问题 Sorry for disturbing you, but I tried during more than a week and did no find a simple and efficient way to reach this goal, so I'm here to ask your help. I have a recurrent task in my job that follow this steps: Access my company website; Sign-in; Make a search; Download a KMZ file from the search result page. I do it every week and need to download more then 100 files per time, do you know? I have a list with all result I need, so I created an application in c# to automate this process, but

问题 So I am currently uploading files via a php script on my webserver using the following code: string file = "dp.jpg"; System.Net.WebClient Client = new System.Net.WebClient(); Client.Headers.Add("Content-Type", "binary/octet-stream"); byte[] result = Client.UploadFile("http://localhost/upload.php", "POST", file); String response = System.Text.Encoding.UTF8.GetString(result, 0, result.Length); What I want to know is how would I use this, or a different method to track how much it has uploaded

问题 I am working on a project to get text from this website. But when I tested it in Visual Studio, I've got some error: Value cannot be null. Parameter name: solutionDirectory Here is my code: using System; using System.Net; public class Program { public static void Main() { WebClient client = new WebClient(); String temp = client.DownloadString("http://www.hkex.com.hk/eng/stat/dmstat/dayrpt/hsio180629.htm"); Console.Write(temp); } } 回答1: Please use HttpClient Which is very good Option Compare

问题 So here's the deal. I'm creating a spider bot for a website that scans all the product pages and records the product data. I'm using C# and the WebClient library to download the HTML string. The site I'm crawling must be specially made because the HTML that is received from WebClient.DownloadString() is different than the HTML that I get when I view the source of the HTML when visiting it on a browser. This seems intentional because the only info I can't get is the price. Does anyone know a

问题 public string[] SearchForMovie(string SearchParameter) { WebClientX.DownloadDataCompleted += new DownloadDataCompletedEventHandler(WebClientX_DownloadDataCompleted); WebClientX.DownloadDataAsync(new Uri( "http://www.imdb.com/find?s=all&q=ironman+&x=0&y=0")); string sitesearchSource = Encoding.ASCII.GetString(Buffer); } void WebClientX_DownloadDataCompleted(object sender, DownloadDataCompletedEventArgs e) { Buffer = e.Result; throw new NotImplementedException(); } I get this exception: The

问题 I use webclient to call a web service, I pass username & password as basic authorizaiton in webclient header. The request is redirected to another URL, but basic authorizaiton info is not included in the re-directed request header, so I get 401 not authorized error. So how to keep authorization info in request header when redirect? thanks I notice the authorization is actually carried in cookies I am using C# , .NEt 4.0, VS2010 回答1: webclient strips out your customer authentication headers,

问题 Partly as an exercise for learning a little Android programming, and partly because I wish I had a WhatsApp client on Android mobile, I am trying to create an app that I can personally use as a WhatsApp client for my mobile. All it does is load up the web.whatsapp.com desktop site in a UIWebView like so: webView = findViewById(R.id.wv); String ua = "user agent string"; webView.getSettings().setUserAgentString(ua); webView.getSettings().setJavaScriptEnabled(true); webView.loadUrl(" url ");

问题 I'm relatively new to Powershell so really not sure where to go with this issue now. I am trying to download a file from a subversion repository and am getting the (401) Unauthorized" error. I am able to log into the site and download the file using IE using the exact Same credentials on the same machine. $source = "http://repository/folder/File.exe" $destination = "E:\Temp\File.exe" $wc = New-Object System.Net.WebClient $user="user" $pwd=convertto-securestring -string "password" -AsPlainText

问题 I'm working on a project that checks an email list that is imported to see if the user is registered or not on yahoo. When I click on the Start button, it should go to the yahoo mail sign up page and check every email on this imported txt file. I've relied on htmlunit library but it always gives an exception, despite disabling the JavaScript and ThrowExceptionOnScriptError this the exceptions always happens Exception in thread "AWT-EventQueue-0" ======= EXCEPTION START ======== EcmaError: