private bool TryFillViewServiceImplementation(FrameworkElement element, ViewServiceRequestEventArgs e)
{
ViewServiceCollection viewServices = element.GetValue(
Interaction.ViewServicesProperty) as ViewServiceCollection;
if (viewServices == null)
{
return(false);
}
// Try to find the view service within the host control
foreach (object actViewService in viewServices)
{
if (actViewService == null)
{
continue;
}
Type actViewServiceType = actViewService.GetType();
if (e.RequestedType.GetTypeInfo().IsAssignableFrom(actViewServiceType.GetTypeInfo()))
{
e.Implementation = actViewService;
return(true);
}
}
return(false);
}
public static ViewServiceCollection GetViewServices(DependencyObject obj)
{
FrameworkElement hostElement = obj as FrameworkElement;
hostElement.EnsureNotNull(nameof(hostElement));
ViewServiceCollection triggerCollection = (ViewServiceCollection)obj.GetValue(Interaction.ViewServicesProperty);
if (triggerCollection == null)
{
triggerCollection = new ViewServiceCollection(hostElement);
obj.SetValue(Interaction.ViewServicesProperty, triggerCollection);
}
return(triggerCollection);
}
