How to set different localized string in different visual states in WP7 using Blend? - mvvm

Question

How do I set different localized strings in different visual states in WP7 using Blend without any code behind?
I can set different non-localized strings in different visual states (although it flickers). That works, but how about localized strings?
If I change the string using data binding in Blend, Blend just overrides the data binding in Base state and not the actual state where I'm recording.
EDIT:
This is how I localize my strings:
I have a resources file named AppPresources.resx. Then I would do this in code:
// setting localized button title
mainButton.Content = AppResources.MainButtonText;
Then I have a GlobalViewModelLocator from MVVM Light Toolkit with the following Property for Databinding.
private static AppResources _localizedStrings;
public AppResources LocalizedStrings
{
get
{
if (_localizedStrings == null)
{
_localizedStrings = new AppResources();
}
return _localizedStrings;
}
}
And in xaml file:
<Button x:Name="mainButton" Content="{Binding LocalizedStrings.MainButtonText, Mode=OneWay, Source={StaticResource Locator}}" ... />

Answer 1

What you need to do, is very close to what you're already doing. First, define a class named Resources.cs with following content
public class Resources
{
private static AppResources resources = new AppResources();
public AppResources LocalizedStrings
{
get
{
return resources;
}
}
}
This allows us to create a instance of your Resource File in XAML. To do this, open App.xaml and add following
<Application.Resources>
<local:Resources x:Key="Resources" />
</Application.Resources>
Now when you need to do bindings in your XAML, you do it like this:
<Button Content="{Binding LocalizedStrings.MainButtonText,
Source={StaticResource Resources}}" />
What you'll notice is that it doesn't work in Blend, yet. To make it work in Expression Blend,
add the following file: DesignTimeResources.xaml in the Properties Folder, and add following content
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:YourNameSpace">
<local:Resources x:Key="Resources" />
</ResourceDictionary>
Now, you press F6 in Visual Studio to recompile, and voila, your localized strings are available in Expression Blend!
A real-world example from one of my projects:
AppResources.cs
DesignTimeResources.xaml
App.xaml