实体框架：编辑视图模型 [英] Entity framework: edit view model

问题描述

我有几个类（实体）和一个视图模型。我想编辑我的视图模型并保存到每个实体。



首先：模型有问题吗？

第二：如何将myViewModel数据检索到编辑视图？我找不到适合我模特的编辑示例。



我尝试过的事情：



我有以下课程：SALES，PRICE和COUNTRIES，SALES为其他课程提供一个>许多。

  public   partial   class  SALES 
 {
 [key] 
  public   int  id_sales {< span class =code-keyword> get ;  set ; } 
  public  DateTime offer_dateC { get ;  set ; } 
  public   int  comnamC { get ;  set ; } 
  public   string  sales_contactC { get ;  set ; } 
  public   string  prod_name_pharma_formC { get ;  set ; } 
  public   virtual  ICollection< PRICE>价格{获取;  set ; } 
  public   virtual  ICollection< COUNTRIES>国家{获取;  set ; 
} 
 
  public   partial  类 PRICE 
 {
 [Key] 
  public   int  id_price { get ;  set ; } 
  public   decimal  priceC { get ;  set ; } 
  public   string  strengthC { get ;  set ; } 
  public   string  quantity { get ;  set ; } 
  public   string  currency { get ;  set ; } 
  public   virtual  SALES SALES { get < /跨度>;  set ; } 
} 
 
  public   partial   class  COUNTRIES 
 {
 [Key] 
  public   int  id_country { get ;  set ; } 
  public   string  countryC { get ;  set ; } 
  public   string  coountry_name { get ;  set ; } 
  public   virtual  SALES SALES { get < /跨度>;  set ; } 
} 

ModelView是：

  public   class  myViewModel 
 {
 [Key] 
  public   int  id_offers { get ;  set ; } 
 
  public  DateTime offer_dateC { get ;  set ; } 
  public   int  comnamC { get ;  set ; } 
  public   string  sales_contactC { get ;  set ; } 
  public   string  prod_name_pharma_formC { get ;  set ; } 
  public 列表< decimal> priceC { get ;  set ; } 
  public   string  strengthC { get ;  set ; } 
  public   string  quantity { get ;  set ; } 
  public   string  currency { get ;  set ; } 
  public  List< string> countryC { get ;  set ; } 
} 

解决方案

查看软件包管理器控制台命令 update-database

I have several classes (entities) and a View Model. I want to edit my view model and save into each entity.

First: Is there something wrong with the model?
Second: How to retreive myViewModel data into the edit view? I couldn't find an Edit example suitable for my model.

What I have tried:

I have the following classes: SALES, PRICE and COUNTRIES where SALES gives one->many to the other classes.

     public partial class SALES
      {
        [key]
        public int id_sales { get; set; }
        public DateTime offer_dateC { get; set; }
        public int comnamC { get; set; }
        public string sales_contactC { get; set; }
        public string prod_name_pharma_formC { get; set; }
        public virtual ICollection<PRICE> PRICE { get; set; }
        public virtual ICollection<COUNTRIES> COUNTRIES { get; set; 
      }

public partial class PRICE
    {
        [Key]
        public int id_price { get; set; }
        public decimal priceC { get; set; }
        public string strengthC { get; set; }
        public string quantity { get; set; }
        public string currency { get; set; }
        public virtual SALES SALES { get; set; }
    }

public partial class COUNTRIES
    {
        [Key]
        public int id_country { get; set; }
        public string countryC { get; set; }
        public string coountry_name { get; set; }
        public virtual SALES SALES { get; set; }
    }

And the ModelView is:

public class myViewModel
    {
      [Key]
      public int id_offers { get; set; }

      public DateTime offer_dateC { get; set; }
      public int comnamC { get; set; }
      public string sales_contactC { get; set; }
      public string prod_name_pharma_formC { get; set; }
      public List<decimal> priceC { get; set; }
      public string strengthC { get; set; }
      public string quantity { get; set; }
      public string currency { get; set; }
      public List<string> countryC { get; set; }
    }

解决方案

look into the package manager console command update-database

这篇关于实体框架：编辑视图模型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！