using System; using GalaSoft.MvvmLight.Command; using HandyControl.Controls; namespace HandyControlDemo.ViewModel { public class ImageBrowserDemoViewModel { private RelayCommand _openImgCmd; public RelayCommand OpenImgCmd => _openImgCmd ?? (_openImgCmd = new RelayCommand(() => new ImageBrowser(new Uri("pack://application:,,,/Resources/Img/1.jpg")).Show())); } }