How to post json data to http request?

I tried below code but its not working

WebClient webclient = new WebClient();

Uri uristring = null;

uristring = new Uri("url");

webclient.Headers["ContentType"] = "text/json";

//string WebUrlRegistration = "";

//string JsonStringParams = "{'vehicletype_Id': '2'}";

webclient.UploadStringCompleted += wc_UploadStringCompleted;

webclient.UploadStringAsync(uristring, "POST","")

Hi Ranjit,

You can go through my codeproejct article. I tried to explain each technology working with JSON

http://www.codeproject.com/Articles/999722/Step-by-Step-working-of-JSON-with-all-technologies

Plz Mark it as answered if it helped you.

I would suggest that you serialize the form and use POST request. Do not use GET request, because everything would get appended to the URL.

Instead, use POST request, and send the data of form to server, either...

Then the data can be passed in JSON format. Otherwise, appending the data for network processing is not a good way to develop your application.