using journals with and XBAP app

[r0k3t]

Hi there,

So I created a small app to test the use of custom content states. The app works but then upon further reading I became more confused. MS says you need to call AddBackEntry but nowhere did I do that.

From what I can tell it looks as though when I click the back button windows just knows to call the GetContentState() method which is defined like this

public System.Windows.Navigation.CustomContentState GetContentState()
        {
           
            return new CustomJournalEntry(FirstNameTextBox.Text, ReplayCallback);
        }

And I guess since it now has the CustomJournalEntry it can then go ahead and call Replay when you click the forward button? I think... Here is the code for my custom journal entry...

 [Serializable()]
        public class CustomJournalEntry : CustomContentState
        {
            string userInfo;
            public string UserInformation
            {
                get { return userInfo; }
                set { userInfo = value; }
            }

            public override string JournalEntryName
            {
                get
                {
                    return "Current User Info: " + userInfo;
                }
            }

            public delegate void ReplayDelegate(CustomJournalEntry c);
            private ReplayDelegate replayDelegate;

            public override void Replay(NavigationService navigationService, NavigationMode mode)
            {
                this.replayDelegate(this);
            }

            public CustomJournalEntry(string userInfoIn, ReplayDelegate replay)
            {
                userInfo = userInfoIn;
                replayDelegate = replay;
            }
        }

and the code for my replay method (the delegate)

 private void ReplayCallback(CustomJournalEntry c)
        {
            FirstNameTextBox.Text = c.UserInformation;
        }

Anyway - if someone could calrify that would be great - like I said it works - I just ended up confused when I read MS's description of creating custom journal entries...

Thanks!