How to post SOAP Request from .NET?

Question

I have the SOAP request in an XML file. I want to post the request to the web service in .net How to implement?

Answer 1

var uri = new Uri("http://localhost/SOAP/SOAPSMS.asmx/add");

var req = (HttpWebRequest) WebRequest.CreateDefault(uri); 
req.ContentType = "text/xml; charset=utf-8"; 
req.Method = "POST"; 
req.Accept = "text/xml"; 
req.Headers.Add("SOAPAction", "http://localhost/SOAP/SOAPSMS.asmx/add"); 

var strSoapMessage = @"<?xml version='1.0' encoding='utf-8'?>
<soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' 
               xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
               xmlns:xsd='http://www.w3.org/2001/XMLSchema'>
  <soap:Body><add xmlns='http://tempuri.org/'><a>23</a><b>5</b></soap:Body>
</soap:Envelope>"; 

using (var stream = new StreamWriter(req.GetRequestStream(), Encoding.UTF8)) 
    stream.Write(strSoapMessage);