C# error message when trying to use System.Net.Http.Post

Question

I am developing Windows 8 app. Error message "The type or namespace name 'Post' does not exist in the namespace 'System.Net.Http' (are you missing an assembly reference?)" is coming in Visual Studio 2012 when I try to execute the code

byte[] response = System.Net.Http.Post
  (
      url: "someurl",
      contentType: "application/json",
      contentLength: 32,
      content: "pqpUserName=admin&password=test@123"
  );

The code is from the URL .NET: Simplest way to send POST with data and read response

. Any help is appreciated.

This code is too old, take advantage of new toy: HttpClient msdn.microsoft.com/en-us/library/… — cuongle
– cuongle, Commented Feb 28, 2013 at 7:26
@Cuong Le Could u provide equivalent code of HttpClient for the above code? — Ramesh
– Ramesh, Commented Feb 28, 2013 at 9:42

Herks · Accepted Answer · 2013-02-28 07:30:27Z

4

Add the System.Net.Http.HttpMethod namespace to your code.

answered Feb 28, 2013 at 7:30

Herks

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2 Comments

Ramesh Over a year ago

getting error "Non-invocable member 'System.Net.Http.HttpMethod.Post' cannot be used like a method."

Thorsten Dittmar Over a year ago

HttpMethod is an enumeration, not a method, so yes, you're getting this error because you're not using it correctly.

cuongle · Accepted Answer · 2013-02-28 10:14:18Z

1

Use HttpClient:

var client = new HttpClient();

var pairs = new List<KeyValuePair<string, string>>
                {
                    new KeyValuePair<string, string>("pqpUserName", "admin"),
                    new KeyValuePair<string, string>("password", "test@123")
                };

var content = new FormUrlEncodedContent(pairs);

var response = client.PostAsync("yourURI", content).Result;

if (response.IsSuccessStatusCode)
{}

edited Feb 28, 2013 at 10:14

answered Feb 28, 2013 at 9:57

cuongle

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3 Comments

Ramesh Over a year ago

Could u be specific on how to get response from client.PostAsync("yourURI", content);

Ramesh Over a year ago

Hey, The above code is working in Windows store app. But, HttpClient is not available in Windows Phone SDK. Any idea about the equivalent code for the above code in Windows Phone SDK 8.0?

Ramesh Over a year ago

I have raised a new question regarding this. stackoverflow.com/questions/15198936/…

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