System.Net.ProtocolViolationException: You must write ContentLength bytes to the request stream before calling [Begin]GetResponse

Question

I am getting the

\"System.Net.ProtocolViolationException: You must write ContentLength bytes to the request stream before calling [Begin]GetResponse\

Answer 1

This finally worked by using:

using (dataStream = Webrequest.GetRequestStream())
{
   dataStream.Write(byteArray, 0, byteArray.Length);
}

Instead of:

dataStream = Webrequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);