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Questions tagged [system.net]

System.Net is a namespace of the .NET framework. It provides a simple programming interface for many of the protocols used on networks today.

System.Net is a namespace of the .NET framework. It provides a simple programming interface for many of the protocols used on networks today.

References

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Error when using HttpClient inside DelegatingHandler: The request message was already sent. Cannot send the same request message multiple times

In the code snippet below I am trying to implement a DelegatingHandler. You will notice that in the SendAsync method I am deviating from the conventional practice of passing the request to the InnerHandler... base.SendAsync(request,…
July.Tech
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How to use System.Net.WebClient in Visual Studio Code on OS X?

I got a little problem by using the WebClient class in System.Net Everything I got is the reference to System.Net, which is working. But I cannot find any WebClient class. Can somebody help me or has the same problem?
Gabriel
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Correct way to make async web request

Hi I need to write a proper async web request function in C# to get some data in JSON format and deserialize it in strongly typed object. I came up with this solution: public async Task MakeAsyncRequest(string url) where…
Alias
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Method not found: 'Void Newtonsoft.Json.Serialization.DefaultContractResolver.set_IgnoreSerializableAttribute(Boolean)'

I have a problem regarding NewtonSoft. I have a solution with 3 projects for example. Project A has reference points to Project B and Project C, Project B also has reference points to Project C. Both B and C has NewtonSoft assembly. Project C has…
Jerry
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HttpWebRequest GET returns 'No Content' after successful POST

I'm working on an app that makes a POST to a REST API that returns a URI in its response. I then am to make a GET request to that URI and it is supposed to return HTML content in the response body. However, the GET request returns 'No Content' in…
mattekelly
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Traverse ftp subfolders to get file sizes in C#

Was wondering if you could point me at a right direction on how to achieve this... I'm currently working on an application that will check the filespace consumed in a remote FTP server that has folders, subfolders and files. I managed to get some…
mallows98
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How to prevent character unescaping with WebClient or HttpWebRequest or any .NET client?

I am making a request to http://translate.google.com/translate_tts?q=da%C3%B1o&tl=es-ES to get an audio recording. When I use System.Net.WebClient, System.Net.Http.HttpClient or WebRequest.Create, the request is sent as…
Frank Schwieterman
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Microsoft Translator API in Windows Phone 8.1 gives System.Net.WebException

I am developing an Windows Phone 8.1 app which uses the Microsoft Translator API and I am following this tutorial to develop the app. I have acquired an clientID and a clientSecret string and assidned it as follows. String strRequestDetails =…
shiblin kubla
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TypeInitializationException when setting ServicePointManager.ServerCertificateValidationCallback with tracing off

I'm getting an unhandled TypeInitializationException exception when I try to set ServicePointManager.ServerCertificateValidationCallback += (a, b, c, d) => true; The exception happens when I've got the following (taken from MSDN) in my app.config.…
eoinmullan
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System.Net issues

When I use code like this: System.Net.WebClient objClient = new WebClient(); string url = "http://google.com"; objClient.DownloadString(url); It takes a couple of seconds for the connection to get established and then the downloading starts. I…
backdoor
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Creating a ContentType throws an FormatException

I'm working with ContentType class to parse content type (type + encoding) of a webpage. I'm noticed that this input fails (FormatException): text/html; charset: windows-1255 This is the code: using System.Net.Mime; //... ContentType ct; try { …
No1Lives4Ever
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Xamarin: System.Net.Http does not work in unit tests, but works on device

I am running Xamarin in OSX Yosemite. My problem is that I cannot get System.Net.Http to work at all when writing unit tests. To replicate, one can create a very simple test class: using NUnit.Framework; using System.Net.Http; using…
csvan
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Post fields and a file using the new System.Net.WebClient

i'm trying to invoke a webapi with the new System.Net.WebClient and didnot found any special examples. The goal is simulate a traditional form post with some fields and a file. how can i do it using the System.Net.WebClient or where can i find some…
Flavio CF Oliveira
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WebRequest slow even with null proxy

I have the following code : private string DoWebRequest() { WebRequest request = WebRequest.Create("http://thegamesdb.net/scripts/ajax_searchgame.php?searchterm=super+mario+64"); request.Proxy = null; …
Emmanuel Istace
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(.NET) ServicePoint.IPEndPointDelegate doesn't callback with proxy?

I need to bind the local ip address for an HttpWebRequest (machine has multiple ips). I create the delegate method, and this is called and the ip is bound for requests without a proxy, but once i add proxy details to the request, the callback never…
staff0rd
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