How to bind a property on App.xaml.cs on all pages of universal app / Windows 8.1 and Windows Phone?

Question

I need to check the internet status of the app without interfering the user interface. I followed the steps in this http://msdn.microsoft.com/en-us/library/windows/apps/xaml/jj835820.asp tutorial. I applied it to my App.xaml.cs. My implementation works, it checks for internet connection on every page whenever my internet connection changes, however, I cannot seem to update a text on every page that tells the status of the internet. The value of the text is updated in the app.xaml.cs. I defined a property in app.xaml.cs (InternetStatus) and Bind it to every page's TextBlock Text={Binding InternetStatus}. I did a breakpoint and upon checking the .xaml of the pages, the TextBlock holds the correct value but it was not displayed in the UI. Any help is appreciated. Thank you.

Answer 1

I had to solve similar problem and made solution like this:

App.xaml.cs:

public static string MyTextVariable = "xxxxx";

MyPage.xaml:

<TextBlock Name="MyTextBlock" Text="{Binding}"/>

MyPage.xaml.cs:

public MyPage()
{
    this.InitializeComponent();
    MyTextBlock.DataContext = App.MyTextVariable;
}

I made it for ListView and shared collection of items, so this example is not really tested, but it should work the same way as the list did.