如果我使用 Entity Framework (v5.0) 数据库优先方法,使用数据注释进行验证的最佳方法是什么?
这是我通过 Entity Framework 创建的分部类:
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated from a template.
//
// Manual changes to this file may cause unexpected behavior in your application.
// Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
using System.ComponentModel.DataAnnotations;
namespace ACore
{
using System;
using System.Collections.Generic;
public partial class PayrollMarkup_State
{
[UIHint("StatesEditor")] // <-- I added this line but it will be overwritten
public string State { get; set; }
public Nullable<float> MaintenancePercentage { get; set; }
public Nullable<float> OfficePercentage { get; set; }
}
}
我试过了,没有成功....
Entity Framework 生成的文件:'PayrollMarkup_State.cs'
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated from a template.
//
// Manual changes to this file may cause unexpected behavior in your application.
// Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
using System.ComponentModel.DataAnnotations;
namespace ACore
{
using System;
using System.Collections.Generic;
public partial class PayrollMarkup_State
{
public string State { get; set; }
public Nullable<float> MaintenancePercentage { get; set; }
public Nullable<float> OfficePercentage { get; set; }
}
}
然后我在不同的目录中创建了这个文件:'PayrollMarkup_state.cs'
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;
namespace ACore.Models
{
[MetadataType(typeof(PayrollMarkupMetadata))]
public partial class PayrollMarkup_State
{
}
public class PayrollMarkupMetadata
{
[UIHint("StatesEditor")]
public string State; // Has to have the same type and name as your model
}
}
最佳答案
虽然这有点痛苦,但您需要创建一个类来用作 MetadataType
为您的模型类。
[MetadataType(typeof(PayrollMarkupMetadata))
public partial class PayrollMarkup_State
{
...
}
public class PayrollMarkupMetadata
{
[UIHint("StatesEditor")]
public string State; // Has to have the same type and name as your model
// etc.
}
关于c# - Entity Framework 5.0 的数据注释(数据库优先),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15621656/