Adding custom SOAPHeader in C# for a web service call

Question

I am trying to add a custom soap header information in c# before calling a web service. I am using SOAP Header class to get this done. I could do this partly but not completely the way I need it. Here is how I need the soap header to look like

<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:Header>
      <Security xmlns="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
      <UsernameToken>
         <Username>USERID</Username>
         <Password>PASSWORD</Password>
        </UsernameToken>    
      </Security>
   </soap:Header>
   <soap:Body>
   ...

I am able to add soap header as below

<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:Header>
      <UsernameToken xmlns="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
         <Username>UserID</Username>
         <Password>Test</Password>
      </UsernameToken>
   </soap:Header>
   <soap:Body>

What I am not able to do is add the "Security" elements which wraps the "UsernameToken" as in the first sample. Any help would be appreciated.

Answer 1

This link adding soap header worked for me. I am calling a SOAP 1.1 service that I did not write and have no control over. Am using VS 2012 and added the service as a web reference in my project. Hope this helps

I followed the steps 1-5 from J. Dudgeon's post towards the bottom of the thread.

Here's some sample code (this would be in a separate .cs file):

namespace SAME_NAMESPACE_AS_PROXY_CLASS
{
    // This is needed since the web service must have the username and pwd passed in a custom SOAP header, apparently
    public partial class MyService : System.Web.Services.Protocols.SoapHttpClientProtocol
    {
        public Creds credHeader;  // will hold the creds that are passed in the SOAP Header
    }

    [XmlRoot(Namespace = "http://cnn.com/xy")]  // your service's namespace goes in quotes
    public class Creds : SoapHeader
    {
        public string Username;
        public string Password;
    }
}

And then in the generated proxy class, on the method that calls the service, per J Dudgeon's step 4 add this attribute: [SoapHeader("credHeader", Direction = SoapHeaderDirection.In)]

finally, here's the call to the generated proxy method, with the header:

using (MyService client = new MyService())
{
    client.credHeader = new Creds();
    client.credHeader.Username = "username";
    client.credHeader.Password = "pwd";
    rResponse = client.MyProxyMethodHere();
}