XAML Binding - App.cs - xaml

Question

Question about binding in XAML with WP8.
In my App.cs I declare a public property for class Setting. In other xaml pages I need to access that propery and pass that property to a ConverterParameter. I can't say I've found a clean way of doing this. Below is my current method of how I accomplish this, but it just feels dirty. Any other ways out there?
So what's happening with code below? In app the settings data gets loaded. Any time the settings gets loaded or the a setting changes it Removes/Adds App.Current.Resource. This then allows me to data bind it {StaticResource {resourceName}}
Again, this works 100%...but is there a better/another way to accomplish this?
App.cs
private static Settings _settings = null;
public static Settings Settings
{
get { return _settings; }
private set { _settings = value; }
}
private async void Application_Launching(object sender, LaunchingEventArgs e)
{
if (Settings == null)
Settings = await FlightPath.Core.Data.LoadSettingsAsync();
App.Current.Resources.Add("Settings", App.Settings);
Settings.SettingsChanged += Settings_SettingsChanged;
}
private void Settings_SettingsChanged(object sender, EventArgs e)
{
if (App.Current.Resources["Settings"] == null)
App.Current.Resources.Add("Settings", App.Settings);
else
{
App.Current.Resources.Remove("Settings");
App.Current.Resources.Add("Settings", App.Settings);
}
}
Application Page XAML using Converter / ConverterParameter
<TextBlock Text="{Binding observation_time,
Converter={StaticResource ZuluToLocalTimeConverter},
ConverterParameter={StaticResource Settings}}"
Style="{StaticResource PhoneTextNormalStyle}"
Margin="-4,0,0,0"/>

Answer 1

if you are using MVVM you can Create a SettingManager class which having a Singleton instance. Then declare its propert in ViewModelBase class. Finally use it into your xaml code
XAML
C#
class ViewModelBaseClass: InotifyPropertyChanged
{
public SettingManager Settings{get{return SettingManager.Instance;}}
}
class SettingManager
{
public static Instance{get{...}}
public string this[string sName]
{
return "whatever you need";
}
}
class MYViewModel: ViewModelBase
{
}