public AddStockPage()
 {
     InitializeComponent();
     ViewModel = new AddStockVM();
     ViewModel.ApplyCommand(SearchButton);
     ViewModel.StockSearchInput = StockSearchInput;
     BindingContext             = ViewModel;
 }
 public AddStockQueryCommand(INotifyPropertyChanged viewModel) : base(viewModel)
 {
     ViewModel = (AddStockVM)viewModel;
 }