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我使用實體框架5代碼優先,並且存在組合鍵的一些問題。實體框架中的表處理中的複合鍵
我有這些表
這是怎麼我的實體
public class Product : EntityBase
{
public Product()
{
this.ProductArticles = new List<ProductArticle>();
}
[Key, Column(Order = 0)]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
public int ProductId { get; set; }
[Key, Column(Order = 1)]
public int PricelistId { get; set; }
public string Description { get; set; }
public string Unit { get; set; }
public string ReportText1 { get; set; }
public string ReportText2 { get; set; }
public bool Standard { get; set; }
public int ProductGroupId { get; set; }
public decimal? Surcharge1 { get; set; }
public decimal? Surcharge2 { get; set; }
public decimal? Surcharge3 { get; set; }
public decimal? Surcharge4 { get; set; }
public decimal PriceMaterialIn { get; set; }
public decimal AdjMaterialIn { get; set; }
public decimal F_PriceMaterialInAdj { get; set; }
public decimal F_AdjMaterial { get; set; }
public decimal F_PriceMaterialOut { get; set; }
public decimal PriceArtisanIn { get; set; }
public decimal F_AdjArtisan { get; set; }
public decimal F_PriceArtisanOut { get; set; }
public decimal F_TotalOut { get; set; }
public decimal F_TotalOutVat { get; set; }
public bool GetPrice { get; set; }
public string Notes { get; set; }
[ForeignKey("ProductGroupId,PricelistId")]
public virtual ProductGroup ProductGroup { get; set; }
[ForeignKey("ProductId,PricelistId")]
public virtual ICollection<ProductArticle> ProductArticles { get; set; }
[ForeignKey("PricelistId")]
public virtual Pricelist Pricelist { get; set; }
}
public class ProductGroup : EntityBase
{
[Key, Column(Order = 0)]
public int ProductGroupId { get; set; }
[Key, Column(Order = 1)]
public int PricelistId { get; set; }
public int OptionalGroupId { get; set; }
public string Prefix { get; set; }
public string Description { get; set; }
public decimal? Surcharge1 { get; set; }
public decimal? Surcharge2 { get; set; }
public decimal? Surcharge3 { get; set; }
public decimal? Surcharge4 { get; set; }
public string ReportText1 { get; set; }
public string ReportText2 { get; set; }
[ForeignKey("OptionalGroupId,PricelistId")]
public virtual OptionalGroup OptionalGroup { get; set; }
[ForeignKey("PricelistId")]
public virtual Pricelist Pricelist { get; set; }
}
但地圖時的背景是建立我得到這個消息
337,10):錯誤3015:映射從第 行開始的映射片段中的問題303,337:來自表 的外鍵約束'Product_ProductGroup'ProductGroup (ProductGroupId,PricelistId)::產品(PricelistId,ProductGroupId) :在概念方面,外鍵必須 映射到某個參與 外鍵關聯的AssociationSet或EntitySets。
對於關鍵ProductGroupId,PricelistId引用產品表上的任何記錄,產品表需要同時具有ProductGroupId和PricelistId等效列。我可以看到PricelistId列 - 但產品表中ProductGroupId的等價物是什麼? –
我在產品表中參考了productgroupid .. –