How to pass an object from a Frame to another Frame in a Windows 8 Style App
- by Mythul
I have problem that i just cant figure out right now.
I am trying to develop a Windows-8 style app and im stuck implementing this functionality.
I have a MainWindow which contains a ListBox and a Button (lets say addButton).
When i click the button i navigate to a new page, lets say AddCustomerPage with this.Frame.Navigate(typeof (AddCustomerPage));
AddCustomerPage has 1 textBox and 1 button (lets say doneButton. When i click the button i want the string in the textBox to be added to the ListBox on the previous page.
This is my current functionality:
1. MainWindow is created.
Click addButton
AddCustomer page is created. MainWindow is destroyed(problem).
Click doneButton
A MainWindow object is created with a ListBox with 1 item.
Repeat the add process, i always get a MainWindow with a ListBox with 1 item.
Thanks for the help. Here is the code:
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
this.brainPageController = new PageController();
// add items from the List<String> to the listBox
listGoals.ItemsSource = brainPageController.GetListGoals();
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
var parameter = e.Parameter as String;
// a simple controller that adds a string to a List<string>
brainPageController.AddGoal(parameter);
}
private void addButton_Click(object sender, RoutedEventArgs e)
{
this.Frame.Navigate(typeof (GoalsInfo));
}
// VARIABLES DECLARATION
private PageController brainPageController;
}
public sealed partial class GoalsInfo : WinGoalsWIP.Common.LayoutAwarePage
{
public GoalsInfo()
{
this.InitializeComponent();
this.brainPageController = new PageController();
}
protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
{
}
protected override void SaveState(Dictionary<String, Object> pageState)
{
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
brainPageController.AddGoal(nameTextBox.Text);
this.Frame.Navigate(typeof(MainPage), nameTextBox.Text);
}
// VARIABLES DECLARATION
PageController brainPageController;
}
