public class DeviceFamiliyTrigger : StateTriggerBase { private string _deviceFamily; public string DeviceFamily { get { return _deviceFamily; } set { var qualifiers = Windows.ApplicationModel.Resources.Core.ResourceContext.GetForCurrentView().QualifiersValues; if(qualifiers.ContainsKey("DeviceFamily")) SetActive(qualifiers["DeviceFamily"] == (_deviceFDamily = value)); else SetActive(false); } } }