private void AddProduct(object parameter)
        {
            var rec = new TransactionBodyListEntity();

            rec.Product           = new ProductEntity();
            rec.Product.Id        = SelectedProduct.Id;
            rec.Product.Name      = SelectedProduct.Name;
            rec.Product.Code      = SelectedProduct.Code;
            rec.Product.CostPrice = SelectedProduct.CostPrice;
            rec.Product.SellPrice = SelectedProduct.SellPrice;
            rec.Body           = new TransactionBodyEntity();
            rec.Body.ProductId = SelectedProduct.Id;
            rec.Body.Price     = ProductPrice;
            rec.Body.Quantity  = ProductQuantity;
            TransactionBody.Add(new BindableTransactionBodyListEntity(rec));
        }
 public BindableTransactionBodyListEntity(TransactionBodyListEntity item)
 {
     Item = item;
 }