Question

I’m using VS2010, asp.net c#.

I have a WebMethod declared like this

      [WebMethod(EnableSession = true)]
        public String getErrorMsg()
        {           
if (HttpContext.Current.Session["error"] == null) return "empty";
else return ((String)(HttpContext.Current.Session["error"]));
        }

Inside a System.Web.Services.WebService Class(inheritaded).

In another WebMethod, I set this message let’s just assume it’s like this

   [WebMethod(EnableSession = true)]
            public void firstMethod()
            {           
    HttpContext.Current.Session["error"] ="bla";
}

In another project, I have added a Service Refrence to this WebService.
I then try to use it like this:

    WebService1.WebService1SoapClient MyService=
    new WebService1.WebService1SoapClient();
        MyService.firstMethod(); // this calls the method that sets
 //the "bla" string in the session
    String str=MyService.getErrorMsg();
    System.Diagnostics.Debug.WriteLine("Message "+str);

Str is “empty”;

At the first method, the “bla” string is set to the session. as long as im in this method, i can use the session stored data.
When I make another call to the WebService, the previous session data is no longer exists.

Ive looked everywhere. I found only this example :

 // instantiate the proxy 
    localhost.MyDemo MyService = new localhost.MyDemo();

    // create a container for the SessionID cookie
    MyService.CookieContainer = new CookieContainer();

    // call the Web Service function
    Label1.Text += MyService.HelloWorld() + "<br />";

But there is 2 main problems:

1) My WebService cannot be used as an object, meaning I cannot use “new” on that class, as this example somehow does.

I use WebService1SoapClient in order to use the WebService.

2)There is no such thing CookieContainer in the WebService1SoapClient object.

I think this example must have been used in an old vs/.net version.

Does anyone knows how can I keep a Session data in a webService?

Answer 1

I might seems to find the answer.
In web.config you have a

     <system.serviceModel>
            <bindings>
              <basicHttpBinding>
 <binding name="NameOfWebServiceSoap"/>
         </basicHttpBinding>
            </bindings>
           <client>
              <endpoint address="*AddressOfWebService*" binding="basicHttpBinding" bindingConfiguration="*NameOfWebServiceSoap*" 
    contract="*NameOfWebService.NameOfWebServiceSoap*" name="*NameOfServiceReference*"/>
            </client>
          </system.serviceModel>

Add the following under the binding name:

allowCookies="true"

So it looks like this:

<binding name="NameOfWebServiceSoap" allowCookies="true"/>