销售和采购发票行

Question

您好我的MVC应用中有一个实体，其中包含交易行的字段。

我想使用此实体来参考购买发票和销售发票。

以下是抽象类购买发票和销售发票将从那里继承。

public abstract class InvoiceAbstractClass：IParentTransaction     {         [键]         public int Id {get;组; }

    [Required]
    public string ParentTransactionType {get; set; }
    [Required]
    [DisplayName("Currency")]
    [DefaultValue("GBP")]
    public string Currency { get; set; }
    [Required]
    [DisplayName("Date")]
    public DateTime ParentTransactionDateTime { get; set; }
    [Required]
    [DisplayName("Due Date")]
    public DateTime InvoiceDueDate { get; set; }
    [Required]
    [DisplayName("Invoice Number")]
    public string ParentTransactionReference { get; set; }
    [Required]
    public virtual ICollection<TransactionLines> TransactionLines { get; set; }
    [Required]
    [DisplayName("VAT")]
    public double VatTotal { get; set; }
    [Required]
    [DisplayName("Invoice Total")]
    public double TransactionTotal { get; set; }
}

}

以下是交易行类enter code here

应该有父transactionType和Id字段（i-e puchase / sales invoice and Id）

公共类TransactionLines     {         [键]         public int Id {get;组; }

    public int ParentTransactionId { get; set; }

    [Required]
    [Display(Name = "Details" )]
    public string TransactionLineDetails {get; set;}


    public int Quantity { get; set; }

    [Required]
    public decimal UnitAmount { get; set; }
    [Required]
    public int AccountId { get; set; }
    [Required]
    VatRate VatRate { get; set; }
    [Required]
    public double VatAmount { get; set; }

    public string ReportingCategoryOne { get; set; }

    public string ReportingCategoryTwo { get; set; }

    public string ReportingCategoryThree { get; set; }
    public string ReportingCategoryFour { get; set; }

    public decimal Total
    {
        get
        {
            return Quantity * UnitAmount;
        }
    }

}

任何指针都将受到赞赏。