C# POSTing values from NameValueCollection

Question

How do I get the Content-Length for a POST of NameValueCollection values?

I am adding the "Content-Length" header, but don't know what to put in it.

public static string Post (string url, NameValueCollection formData)
{
    string response;
    int length = formData.???

    using (WebClient webClient = new WebClient())
    {
        webClient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
        webClient.Headers.Add ("Content-Length", length);
        byte[] responseBytes = webClient.UploadValues (url, "POST", formData);
        response = Encoding.UTF8.GetString (responseBytes);
    }

    return response;
}

According to http://msdn.microsoft.com/en-us/library/system.net.webclient.headers.aspx, you can't set the `Content-Length` header using `WebClient`. — Jim Mischel, Nov 17 '11 at 20:44

score 0 · Accepted Answer · answered Nov 21 '11 at 03:43

0

You can not set that property on a WebClient

answered Nov 21 '11 at 03:43

Ian Vink

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C# POSTing values from NameValueCollection

1 Answers1