Storing currently logged in user / session parameters

[Filip]

Hello,
I am quite new at all this. I'm trying to keep track of currently logged in user throughout the session. I cannot use Everlive services, and my users is read from database. I also have some more session parameters, which I dont know how to store. I am actually storing userdata(username and password) in a kendo.observable object, but the problem is that my dataSource object is probably initialized before userdata is set:

i have something like this: 
on login:

usersModel.currentUser.set('username', username);
usersModel.currentUser.set('password', password);

after login this data from this data source is retrieved. 
var eventsDataSource = new kendo.data.DataSource({
            schema: {
                model: eventModel
            },
            transport: {
                read: {
                  url: WCF + "/GetOrganizerEventsJSON",
                  data: { strUser: usersModel.currentUser.username, strPasswort: usersModel.currentUser.password },
                  contentType: "application/json; charset=utf-8",
                  dataType: "jsonp",
                  crossDomain: true
                }
            }
        });
        return {
            events: eventsDataSource
        };

Problem is that username and password are "" (empty strings) in the request. I also tried with defining data as a function, but no success, still empty strings.
data: { strUser: usersModel.getCurrentUser().username, strPasswort: usersModel.getCurrentUser().password }

[Filip]

I managed to find a solution by defining whole data as a function.

transport: {
                read: {
                  url: WCF + "/GetOrganizerEventsJSON",
                  data: function() {return usersModel.currentUserFnc();},
                  contentType: "application/json; charset=utf-8",
                  dataType: "jsonp",
                  crossDomain: true
                }
            },

function currentUserFnc() {
       return {strUser: currentUser.username, strPasswort: currentUser.password};
}

Still, if there is some better way to manage "session" data, I'd be grateful for a hint. 

Thanks!