OperationContext.Current.SessionId getting null

Question

When I calling to the service GetSessionId(), session id getting null value. Please help me to solve this problem..

public Response<string> GetSessionId()
{
    Response<string> respn = new Response<string>();
    respn.Succeeded = false;

    try
    {
        _sessionId = OperationContext.Current.SessionId;
        respn.ReturnData = _sessionId;
        respn.Succeeded = true;
    }
    catch (Exception ex)
    {
        respn.Succeeded = false;
        respn.ErrorMsg = ex.Message;
    }
    return respn;
}

In Web.Config file if I set to security mode="Message" and clientCredentialType="Windows" in that case it will get the session id.But I cannot use any security.

<wsHttpBinding>
    <binding name="SOAPService_EndpointBinding"
             maxReceivedMessageSize="2147483647"
             openTimeout="00:02:00"
             closeTimeout="00:02:00"
             sendTimeout="24:00:00"
             receiveTimeout="24:00:00">          
      <security mode="None">
        <message clientCredentialType="None"/>
      </security>
    </binding>
  </wsHttpBinding>

IIRC the session ID is not about "security", but about session enabled binding. See [here](http://stackoverflow.com/a/6122908/21567) for a possible answer. — Christian.K, Jun 06 '16 at 10:53
Problem has been solved, I added and ServiceContract set to SessionMode.Required. — Neo, Jun 08 '16 at 04:24

score 0 · Answer 1 · answered Jun 07 '16 at 09:26

0

What is the binding that you are using? Session is supported with the following binding

NetTcpBinding
NetNamedPipeBinding
WSHttpBinding (only if security or reliability is turned on)

answered Jun 07 '16 at 09:26

Sandeep Saran

36
3

I'm using WSHttpBinding. Problem has been solved, I added and ServiceContract set to SessionMode.Required. – Neo Jun 08 '16 at 04:24

score 0 · Accepted Answer · answered Jun 08 '16 at 04:50

The Solution is as follows,

In the contract interface, have SessionMode attribute set to Required

[ServiceContract(SessionMode = SessionMode.Required)]

Enabled reliableSession to true in the configuration file

<wsHttpBinding>
    <binding name="SOAPService_EndpointBinding"
             maxReceivedMessageSize="2147483647"
             openTimeout="00:02:00"
             closeTimeout="00:02:00"
             sendTimeout="24:00:00"
             receiveTimeout="24:00:00">          
      <security mode="None">
        <message clientCredentialType="None"/>
      </security>
      <reliableSession enabled="true"/>
    </binding>
  </wsHttpBinding>

OperationContext.Current.SessionId getting null

2 Answers2