webclient-download

wb.DownloadFileAsync throw “WebClient does not support concurrent I/O operations.” exception

人走茶凉 提交于 2019-12-04 14:07:31
I need help with this code #region Events public class DownloadProgressChangedEventArg { private long _ProgressPercentage; private long _BytesReceived; private long _TotalBytesToReceive; public DownloadProgressChangedEventArg(long BytesReceived, long TotalBytesToReceive) { _BytesReceived = BytesReceived; _TotalBytesToReceive = TotalBytesToReceive; _ProgressPercentage = BytesReceived * 100 / (TotalBytesToReceive); } public long BytesReceived { get { return _BytesReceived; } set { _BytesReceived = value; } } public long ProgressPercentage { get { return _ProgressPercentage; } set {

Excel File download through web api. Getting corrupt

核能气质少年 提交于 2019-12-04 09:20:25
I am trying to download a excel file through Web API (using Entity framework). The download is working but I am getting some error dialog about file corrupt when trying to open the file. Web API code as below: public HttpResponseMessage GetValue(int ID, string name) { MemoryStream stream; try { using (DataContext db = new DataContext()) { dynamic fileObj = (from c in db.FileList c.ID == IDc).ToList(); stream = new MemoryStream(fileObj(0).File); HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK); result.Content = new StreamContent(stream); result.Content.Headers.ContentType

Downloading Media File programmatically in Windows Phone 8

泪湿孤枕 提交于 2019-12-04 08:26:36
Our app is video/audio based app, and we have uploaded all the media on Windows Azure. However it is required to facilitate user to download audio/video file on demand, so that they can play it locally. So i need to download audio/video file programmatically and save it in IsolatedStorage. We have Windows Azure Media File Access URLs for each audio/video. But I am stuck in 1st step of downloading media file. I googled and came across this article , but for WebClient there is no function DownloadFileAsync that I can use. However I tried its other function DownloadStringAsyn, and download media

WebClient downloadfile

吃可爱长大的小学妹 提交于 2019-12-01 22:32:26
I have following PS script to download file using WebClient . The download links are in a text file. The download works, however, I want to make sure I don't overwrite duplicate files so I added additional code. The code runs good for single file. However, if duplicate is found then the code breaks with this error: Exception calling "DownloadFile" with "2" argument(s): "An exception occurred during a WebClient request." The Write-Host $newTarget value looks like this: \\NRP-12-62-3\Root\NV-RST\Southwest Projects\Marketing Analysis\Monthly Sales Reports\10-01-2015-223403\Travis, Martin_17Jul14

Can Powershell be used to list the contents of a URL directory?

有些话、适合烂在心里 提交于 2019-12-01 08:25:58
问题 We have a bunch of zip files hosted on an FTP server, which are also accessible via HTTP. I would love to do something like (gci http://test.com/test/ *.zip ) and give me all the zip files which exist on the webserver. Does anyone know of a way to do such a thing in a clean way? TIA 回答1: this is quite easy with invoke-webrequest (PS V3) $r=iwr http://asite.com/test2/ -UseBasicParsing $r.Links |?{$_.href -match ".zip"} of course as +arco444 states, the directory index must be enable Edit To

Download a file from a Flask-based Python server

寵の児 提交于 2019-11-30 20:31:28
I'm trying to make work a code that I found at this URL: http://code.runnable.com/UiIdhKohv5JQAAB6/how-to-download-a-file-generated-on-the-fly-in-flask-for-python My goal is to be able to download a file on a web browser when the user access to a web service on my Flask-base Python server. So I wrote the following code: @app.route("/api/downloadlogfile/<path>") def DownloadLogFile (path = None): if path is None: self.Error(400) try: with open(path, 'r') as f: response = make_response(f.read()) response.headers["Content-Disposition"] = "attachment; filename=%s" % path.split("/")[2] return

Adding pause and continue ability in my downloader

非 Y 不嫁゛ 提交于 2019-11-30 07:39:34
问题 I am creating a downloader in C#. I am using WebClient class. To pause downloading on a button click I could just think of using Thread. So when I created thread and attached it with my file downloading as below WebClient web = new WebLCient(); Thread dwnd_thread = new Thread(Program.web.DownloadFileAsync(new Uri(Program.src), Program.dest)); it is giving me following errors: "The best overloaded method match for 'System.Threading.Thread.Thread(System.Threading.ThreadStart)' has some invalid

Remote server (403) Forbidden error while using WebClient

六月ゝ 毕业季﹏ 提交于 2019-11-29 15:05:37
I am trying to query some URL using WebClient . I have a collection which I loop through to get the QueryString value, and build final URL, and then pass it on to client. The very first time it gets executed well, I get proper response, however, when it goes in loop second time, I get the error: System.Net.WebException --> The remote server returned an error: (403) Forbidden. If I get response for very first time. Then I should get for rest of the collection too. Any clue why? What I might be missing? Below is the code snippet I am using. using(System.IO.StreamWriter file = new System.IO

Adding pause and continue ability in my downloader

偶尔善良 提交于 2019-11-29 05:19:24
I am creating a downloader in C#. I am using WebClient class. To pause downloading on a button click I could just think of using Thread. So when I created thread and attached it with my file downloading as below WebClient web = new WebLCient(); Thread dwnd_thread = new Thread(Program.web.DownloadFileAsync(new Uri(Program.src), Program.dest)); it is giving me following errors: "The best overloaded method match for 'System.Threading.Thread.Thread(System.Threading.ThreadStart)' has some invalid arguments" and "Argument '1': cannot convert from 'void' to 'System.Threading.ThreadStart'". Then I

Use WebClient with socks proxy

烂漫一生 提交于 2019-11-28 17:56:33
Is there any way to use a socks proxy with WebClient ? Specifically with the DownloadString method that it provides? I don't want to use any third party stuff like privoxy, freecap whatever and I can't use commercial libraries like those from Chilkat. I tried using stuff from http://www.mentalis.org/ in fact I used their WebRequest implementation but they don't seem to have something similar for WebClient. SOCKS is not supported directly by the WebRequest / WebResponse classes and by extension, the WebClient class (it relies on WebRequest to do its work). It really can't, as it works on the