c# - Configuration WCF Client for WIF .NET 4.5 -

i've problem token sts. token if use soapui. don't know how configure client application creates request like:

<s:envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">    <s:header>      <a:action s:mustunderstand="1">http://docs.oasis-open.org/ws-sx/ws-trust/200512/rst/issue</a:action>      <a:to s:mustunderstand="1">https://.../idp/sts.wst</a:to>      <o:security s:mustunderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">        <o:usernametoken>          <o:username>xxxuserxxx</o:username>          <o:password>xxxpwxxx</o:password>        </o:usernametoken>      </o:security>    </s:header>    <s:body>      <trust:requestsecuritytoken context="http://client.ws.com" xmlns:trust="http://docs.oasis-open.org/ws-sx/ws-trust/200512">        <wsp:appliesto xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy">          <a:endpointreference>            <a:address>xxxaddressxxx</a:address>          </a:endpointreference>        </wsp:appliesto>        <trust:keytype>http://docs.oasis-open.org/ws-sx/ws-trust/200512/bearer</trust:keytype>        <trust:requesttype>http://docs.oasis-open.org/ws-sx/ws-trust/200512/issue</trust:requesttype>        <trust:tokentype>http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.1#samlv2.0</trust:tokentype>      </trust:requestsecuritytoken>    </s:body>  </s:envelope>

can me?

does sts expose metadata exchange endpoint? if create client proxy via visual studio's "add service reference" dialogue (or use svcutil).

you use this article starting point.