/// <summary>
/// Returns the object that corresponds to the specified resource key.
/// </summary>
/// <param name="serviceProvider">An object that can provide services for the markup extension.</param>
/// <returns>The object that corresponds to the specified resource key.</returns>
public override object ProvideValue(IServiceProvider serviceProvider)
{
IProvideValueTarget service = serviceProvider.GetService(typeof(IProvideValueTarget)) as IProvideValueTarget;
if (service != null)
{
if (service.TargetProperty is DependencyProperty)
{
_targetProperty = service.TargetProperty;
if (service.TargetObject is DependencyObject)
{
var targetObject = new WeakReference(service.TargetObject);
// Verify if the extension is used in a template
// and has been already registered
if (_targetObjects != null)
{
_targetObjects.Add(targetObject);
}
else
{
_targetObject = targetObject;
LocalizationManager.AddLocalization(this);
}
}
else
{
// The extension is used in a template
_targetObjects = new List <WeakReference>();
LocalizationManager.AddLocalization(this);
return(this);
}
}
else if (service.TargetProperty is PropertyInfo)
{
_targetProperty = service.TargetProperty;
_targetObject = new WeakReference(service.TargetObject);
LocalizationManager.AddLocalization(this);
}
}
return(GetValue(Key, Format));
}
private LocalizationInstance()
{
LocalizationManager.AddLocalization(this);
}