Webapi data is not getting bound

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data

Binding

WebAPI

I have a WebAPI project which was generated by the Visual Studio 2015 wizard. In it, I have added a controller that contains a GET handler:

public Task<string> Get (int id)
{
    using (var wb = new WebClient())
    {
        var data = new NameValueCollection();
        data["username"] = "myUser";
        data["password"] = "myPassword";

        var response = wb.UploadValues(<project URL, ends with a value for the id  
            parm>, "POST", data);
    }

    return null;
}

And I have the following method:

[HttpPost]
public NameValueCollection Post(int id, [FromBody] NameValueCollection data)
{
    return data;
}

I find that although I have deliberately hard-coded the data in the GET handler, when the POST method gets invoked, the data parameter always has a .Count of 0. Upon return to the GET, it has a .Count of 2, exactly as it started out. I have tried a dozen different methods of invoking the POST, taken from various articles online. In every case, the behavior is the same: the POST method receives no data. The id parameter always has the correct value passed in to the GET method.

Does anyone have a clue about what might be going wrong?

What I have tried:

I have tried a dozen different methods from articles found on the web.