Authentification when working with web service.

[Dmitriy]

To get data from remote web-service for my grid I have to login and get sessionID.
Ok I can pass this sessionID 

read: {

url: someurl,

                                    data: {

                                        action: "GetList",

                                        sessionID: Auth.sessionID,

                                    }, 

                                    type: "POST",

                                },

The problem is that this  sessionID have rather short lifetime. In other words it can expire while a user work with my grid.
So I have to relogin sometimes(if web-servers tells me "session is expired").

Is there an elegant way to intercept such auth error from my server and resend failed call?

[Alexander Valchev]

Hello Dmitriy,

The dataSource has an error event which will fire when an error occurs during the Ajax request. You could hook up to this event and notify the user about the problem or resend the failed call (invoke dataSource.read()). If there are any pending CRUD operations they can be submitted through the sync() method.

Regards,
Alexander Valchev
the Telerik team