webclient

Loading data from a site in Silverlight

Hi, I'm trying to load data into my Silverlight app. However, when it launches, I get a TargetInvocationException as soon as I hit e.Result: public MainPage() { WebClient wc = new WebClient(); wc.OpenReadCompleted += new OpenReadCompletedEventHandler(wc_OpenReadCompleted); wc.OpenReadAsync(new Uri("http://www.google.com")); } voi...

Silverlight streaming upload

I have a Silverlight application that needs to upload large files to the server. I've looked at uploading using both WebClient as well a HttpWebRequest, however I don't see an obvious way stream the upload with either option. Do to the size of the files, loading the entire contents into memory before uplaoding is not reasonable. Is this ...

How to hit the server that spawned me from a silverlight app?

This is probably a noob question, but I can't seem to find the answer. I am building a Silverlight 3 app that's in the browser. I want to hit a web URL on the box where the application came from. So my question is How do I get the name of the URL where the app came from? What is the proper way to hit the URL? I've seen WebClient...

How do I authenticate a WebClient request?

I am making a call to a page on my site using webclient. I'm trying to get the result of the webpage put into a pdf so I am trying to get a string representation of the rendered page. The problem is that the request is not authenticated so all I get is a login screen. I have sent the UseDefaultCredentials property to true but I still get...

Webclient.Uploadfile via Https and proxy server

I have a method that works fine for uploading a file to an HTTPS server directly. However, if the customer site requires the customer go through a proxy server, it no longer works. I'd like to support the default proxy server as defined by the default browser. This seems to be the typical way it is set up. The inital (non-proxy) code...

Easier way to download a string with cookies?

Is there an easier way to write this? I know if i didnt need cookies i could have done var sz = new WebClient().DownloadString(url); But i need cookies bc of login data so i am stuck with this instead. Is there a way to make it short like the line above? request = (HttpWebRequest)HttpWebRequest.Create(url); request.C...

Alternative to WebClient

Hi there, I've just seen a web crawler in action on my computer and it downloads like thousands of metatag info in only a few minutes. And when I use WebClient to download pages and then parse them locally, why does it take WebClient about 40seconds just to download a single webpage? Is there an alternative to downloading webpages? th...

ASP.Net: word creation/manipulation at client side

Hi, I have a asp.net web app. On click of a button on a web page,I want to create a new MS word document on the client machine and show some data fetched from the server in it. Client can make changes into that document and save it on it's machine. After that client can again upload the saved document in the server and we need to update ...

vb.net: webclient not working?

Dim instance As WebClient Dim address As String Dim avoids as string address = "http://www.ecosavetech.com/avoid.txt" avoids = instance.DownloadString(address) MsgBox(avoids) msgbox is not showing anything. please help! i am not getting any errors either i am using Imports System.Net ...

Google Site Data fetching

Hail! I want to fetch image from NOT PUBLIC Google Site's page. I'm using WebClient for this purposes. var uri = new Uri("http://sites.google.com/a/MYDOMAIN.COM/SITENAME/" + "_/rsrc/1234567890/MYIMAGE.jpg"); string fileName = "d:\\!temp\\MYIMAGE.jpg"; if (File.Exists(fileName)) File.Delete(fileName); using (var webCl...

Should I always call TcpClient.EndConnect (even when connection fails?)

C# has several useful classes for networking tasks such as TcpClient and WebClient. Both have BeginX methods (BeginConnect and BeginGetResponse respectively) that according to MSDN should always be followed by EndX. Both accepts a delegate that is called once the operation is complete. However, say we fail to establish a connection, and...

Twitter c# client unable to post due to error 417

I'm creating a twitter client without from scratch and on my 64bit machine at home i can post fine no problem, but on my 32bit laptop I'm getting a error 417 when I come to post a tweet. I am able to read tweets fine, just posting that seems to be a problem I have also put in the following which some people said stop the error from accu...

CookiesSupported in WebClient,

Hi, I am using a web client to allow cookie support. public class MyWeb : WebClient { private CookieContainer cookies = new CookieContainer(); protected override WebRequest GetWebRequest(Uri address) { WebRequest request = base.GetWebRequest(address); if (request is HttpWebRequest) (request as H...

WebClient.DownloadFileAsync - Download files one at a time

Hello All, I am using the code below to download multiple attachments from a TFS server: foreach (Attachment a in wi.Attachments) { WebClient wc = new WebClient(); wc.Credentials = (ICredentials)netCred; wc.DownloadFileCompleted += new AsyncCompletedEventHandler(wc_DownloadFileCompleted); wc.DownloadFileAsync(a.Uri,...

How can you add a Certificate to WebClient (C#)?

I know it is pretty simple to add a certificate to a HttpWebRequest. However, I have not found a way to do the equivalent using WebClient. Basicly, I want to send out a POST with a specific certificate using WebClient. How would you accomplish this exact code using WebClient: var request = (HttpWebRequest) WebRequest.Create("my-ur...

Creating a Folder in C#, Applying Permissions, But access is still DENIED?

So I have this code below that creates a Directory and gives ASPNET permissions on the folder created. But when I run The Webclient.Downloadfile method, it says the folder created is still access denied.. Ive also just created a folder on C:/ and tried applying permissions my self and see what I get. But I still get access denied. Ca...

C# WebClient Upload file to web

Hi, I would like to know if I code it correctly. To upload file manually to my workplace server, I have to use Login ID and Password. With the clode below, should I include my loginID and Password as well? public void SaveLogsToWeb(string logFileName) { WebClient webClient = new WebClient(); string webAddress ...

Is there something similar to WebClient.DownloadString in Java?

I want to download the html source code of a site to parse some info. How do I accomplish this in Java? ...

How do I Create an HTTP Request Manually in .Net?

I'd like to create my own custom HTTP requests. The WebClient class is very cool, but it creates the HTTP requests automatically. I'm thinking I need to create a network connection to the web server and pass my data over that stream, but I'm unfamiliar with the library classes that would support that kind of thing. (Context, I'm wor...

C# Webclient problem with looping download?

this is my implementation of Webclient, supposedly, this download should be continuous, but for some reason, which debug don't even help, i got 1 success in the first run, then the rest are failed. Does anyone know why ? for (int i = 1; i <= Count; i++) { using (WebClient wc = new WebClient()) { ...