Get status code after executing Web API

Hi

I want to add some data in web API. I am using streamwriter for that. But my problem is that after executing code i not getting status code.Even it adde data or error happened. why? How we get status code?
below giving my code

string data = "{\"title\":\"MyMavenLinkTestProject\",\"creator_role\":\"maven\"}";

var request = (HttpWebRequest)WebRequest.Create(new Uri("https://api.mavenlink.com/api/v1/workspaces.json"));
request.Method = "POST";
request.AllowAutoRedirect = false;
request.Accept = "*/*";
request.Headers.Add(credentials);// My credentials will come here.
request.ContentType = "application/json";
request.ContentLength = data.Length;
try
{
using (var reqStream = request.GetRequestStream())
using (StreamWriter writer1 = new StreamWriter(reqStream))
{
writer1.Write(data);
}

}