500 internal server error at GetResponse()

Question

I have a heavy traffic aspx page calling a web service upon every user`s request as follows.

string uri = \"Path.asmx\";
string soap = \"soap xml string\";

         


        

Answer 1

Finally I get rid of internal server error message with the following code. Not sure if there is another way to achieve it.

string uri = "Path.asmx";
string soap = "soap xml string";

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.Headers.Add("SOAPAction", "\"http://xxxxxx"");
request.ContentType = "text/xml;charset=\"utf-8\"";
request.Accept = "text/xml";
request.Method = "POST";

using (Stream stm = request.GetRequestStream())
{
    using (StreamWriter stmw = new StreamWriter(stm))
    {
        stmw.Write(soap);
    }
}

using (WebResponse webResponse = request.GetResponse())
{
}

Answer 2

In my case I just remove the SoapAction instruction from the HttpWebRequest object. So, I don't define .Headers.Add("SOAPAction","someurl") in HttpWebRequest definitions and my code works fine.

ResultXML is an XDocument. ResultString is a string.

try
{
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(Url);
    //req.Headers.Add("SOAPAction", "http://tempuri.org/IWebService/GetMessage");
    req.ProtocolVersion = HttpVersion.Version11;
    req.ContentType = "text/xml;charset=\"utf-8\"";
    req.Accept = "text/xml";
    req.KeepAlive = true;
    req.Method = "POST";        

    using (Stream stm = req.GetRequestStream())
    {
        using (StreamWriter stmw = new StreamWriter(stm))
            stmw.Write(soapStr);
    }
    using (StreamReader responseReader = new StreamReader(req.GetResponse().GetResponseStream()))
    {
        string result = responseReader.ReadToEnd();
        ResultXML = XDocument.Parse(result);
        ResultString = result;      
    }
}