// Load data for the ViewModel Items
protected override void OnNavigatedTo(NavigationEventArgs e)
{
Log.Debug("e=" + e.DumpStr());
Log.Debug("NavigationContext.QueryString=" + NavigationContext.QueryString.DumpStr());
//Log.Debug("App.RecusiveBack=" + App.RecusiveBack);
if (NavigationContext.QueryString.GetValue("Op", "") == "Add"
//&& App.RecusiveBack==true
&& e.NavigationMode == NavigationMode.New)
{
while (NavigationService.CanGoBack)
{
JournalEntry jo = NavigationService.RemoveBackEntry();
Log.Debug("jo.Source=" + jo.Source);
}
DataService.AddBus(new BusTag
{
busName = NavigationContext.QueryString["busName"],
station = NavigationContext.QueryString["station"],
dir = (BusDir)Enum.Parse(typeof(BusDir), NavigationContext.QueryString["dir"]),
tag = NavigationContext.QueryString["tag"]
});
//App.RecusiveBack = false;
//DataService.SaveData();
}
DataContext = new KeyedBusTagVM();
Log.Debug("exit");
//NavigationContext.QueryString.Clear();
}
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
Log.Debug("e=" + e.DumpStr());
Log.Debug("NavigationContext.QueryString=" + NavigationContext.QueryString.DumpStr());
Log.Debug("exit");
//NavigationContext.QueryString.Clear();
}
private void CheckForResetNavigation(object sender, NavigationEventArgs e)
{
Log.Debug("e=" + e.DumpStr());
// If the app has received a 'reset' navigation, then we need to check
// on the next navigation to see if the page stack should be reset
if (e.NavigationMode == NavigationMode.Reset)
{
RootFrame.Navigated += ClearBackStackAfterReset;
}
}
// Do not add any additional code to this method
private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
{
Log.Debug("e=" + e.DumpStr());
// Set the root visual to allow the application to render
if (RootVisual != RootFrame)
{
RootVisual = RootFrame;
}
// Remove this handler since it is no longer needed
RootFrame.Navigated -= CompleteInitializePhoneApplication;
}
private void ClearBackStackAfterReset(object sender, NavigationEventArgs e)
{
Log.Debug("e=" + e.DumpStr());
// Unregister the event so it doesn't get called again
RootFrame.Navigated -= ClearBackStackAfterReset;
// Only clear the stack for 'new' (forward) and 'refresh' navigations
if (e.NavigationMode != NavigationMode.New && e.NavigationMode != NavigationMode.Refresh)
{
return;
}
// For UI consistency, clear the entire page stack
while (RootFrame.RemoveBackEntry() != null)
{
; // do nothing
}
}
