webclient

问题 This method that I wrote was working fine a week ago but now it downloads an incomplete file. The original file is nearly 10mb but the file that is being downloaded is 2k. My code is basically this Dim URL as string = "http://www.cqc.org.uk/sites/default/files/cqc_locations_export.csv" Dim path as string = "C:\temp" Dim webClient As New WebClient webClient.Headers.Add("user-agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12 (.NET CLR 3.5.30729)

问题 I'm trying to upload an image from Xamarin to php using WebClient. I've tried this code: Xamarin: System.Net.WebClient client = new System.Net.WebClient(); Uri uri = new Uri($"{APIConfig.SourceUri}/post/postProfilePicBETA"); client.Headers.Add("user-agent", GetString(Resource.String.appVersion)); client.UploadFileAsync(uri, resultUri.Path); client.UploadFileCompleted += delegate { loadingLayout.Visibility = ViewStates.Gone; this.Finish(); }; PHP Code: if(!isset($_FILES['image'])) { echo json

问题 Is there a way to programmatically send a command to Slack via the API? I'm successfully posting a message using var postingResponse = client.UploadValues("https://slack.com/api/chat.postMessage", "POST", new NameValueCollection() { {"token","<token>"}, {"channel","<ID>"}, {"text", "/mycommand hello" }, {"username","<username>" }, {"link_names", "true" }, {"parse", "full" } }); This works well but the /mycommand hello is just printed as text instead of executing as a command. I tried adding a

问题 I am reading from the history database, and for every URL read, I am downloading it and storing the data into a string. I want to be able to determine if the link is a download link, i.e. .exe or .zip for e.g. I am assuming I need to read the headers to determine this, but I don't know how to do it with WebClient. Any suggestions? while (sqlite_datareader.Read()) { noIndex = false; string url = (string)sqlite_datareader["url"]; try { if (url.Contains("http") && (!url.Contains(".pdf")) && (

问题 Im experiencing problem with webclient to parse some very sensitive webpage. Somehow, webclient failed to do some task, and i dont even know why, no exception, no error, just simple not working (this is not the problem from the site) I run webclient in a loop, however, only the first request was success, all the next requests are failed. When i restart the application, the same result appear, the first request always succeed, while all other request are failed. Im sure all webclient are

问题 Is there a way to programmatically send a command to Slack via the API? I'm successfully posting a message using var postingResponse = client.UploadValues("https://slack.com/api/chat.postMessage", "POST", new NameValueCollection() { {"token","<token>"}, {"channel","<ID>"}, {"text", "/mycommand hello" }, {"username","<username>" }, {"link_names", "true" }, {"parse", "full" } }); This works well but the /mycommand hello is just printed as text instead of executing as a command. I tried adding a

问题 Can I post data to a URI and download a file in a single WebClient request? TL;DR I'm using a class extending WebClient to contact our PHP API and download a file. The class adds a CookieContainer to the WebClient to enable a PHP session. WebClient.UploadValues() posts a NameValueCollection query to the server to authenticate the following request. WebClient.DownloadFile() downloads the file. This is the only part of the API that's not very RESTful and I'd prefer to move this into a single

问题 I am trying to resume file download. I use the below code to successfully download the file I need. downlaodfile = new WebClient(); // downlaodfile.Headers.Add("Range", "bytes=0-600000"); downlaodfile.DownloadFileAsync(new Uri(video.DownloadUrl), @"C:\Videofile.pm4"); The problem start when I uncomment the bellow line I get 0 bytes downloaded downlaodfile.Headers.Add("Range", "bytes=0-600000"); What is the right way to resume with WebClient class? 回答1: Your code doesn't work because you

问题 I am trying to resume file download. I use the below code to successfully download the file I need. downlaodfile = new WebClient(); // downlaodfile.Headers.Add("Range", "bytes=0-600000"); downlaodfile.DownloadFileAsync(new Uri(video.DownloadUrl), @"C:\Videofile.pm4"); The problem start when I uncomment the bellow line I get 0 bytes downloaded downlaodfile.Headers.Add("Range", "bytes=0-600000"); What is the right way to resume with WebClient class? 回答1: Your code doesn't work because you

问题 This question already has answers here : How to POST using HTTPclient content type = application/x-www-form-urlencoded (5 answers) How to post data to specific URL using WebClient in C# (8 answers) Closed 1 year ago . I know I can send json but I couldn't find how to send x-www-form-urlencoded. I don't know what to try as I couldn't find anything. WebClient wc = new WebClient(); string data = "channel_id=+12039273888&channel_type=phone&channel_verification=514950"; wc.Headers