public ConsultaVentaViewModel() { _common = new Helpers.CommonHelper(); this.PropertyChanged += ConsultaVentaViewModel_PropertyChanged; _proxy = CommonServiceLocator.ServiceLocator.Current.GetInstance <Common.ServiceContracts.IDataServiceAsync>(); _reports = new Helpers.ReportsHelper(); this.SearchCommand = new RelayCommand(() => { var settings = CommonServiceLocator.ServiceLocator.Current.GetInstance <Utilities.Models.Settings>(); var folio = _common.PrepareVentaDevolucion(this.Search); this.Venta = _proxy.FindVentaView(settings.Sucursal.Clave, folio, this.Cajero.Id); if (this.Venta != null) { this.Search = null; } }); if (this.IsInDesignMode) { this.Search = "venta"; this.Venta = new Common.Entities.VentaView { Folio = "folio", Sucursal = "sucursal", Productos = new Common.Entities.ProductoView[] { new Common.Entities.ProductoView { Serie = "1", Precio = 100 }, new Common.Entities.ProductoView { Serie = "2", Precio = 99.9m }, new Common.Entities.ProductoView { Serie = "3", Precio = 1999.89m } } }; } }