我对 ASP.NET MVC (3) 非常陌生,并且很难解决 Visual Studio 中的构建错误:
找不到类型或命名空间名称“DbContext”(是否缺少 using 指令或程序集引用?)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using System.Data.Entity;
namespace MyProjectName.Models
{
public class MachineModel
{
// name
[Required]
[Display(Name = "Nom de la machine")]
public string Name { get; set; }
// IP
[Required]
[RegularExpression(@"(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)",
ErrorMessage = "Donnez une adresse IPv4 valide.")]
[Display(Name = "Adresse IP de la machine")]
public string IP { get; set; }
}
public class MachineDbContext : DbContext
{
public DbSet<MachineModel> Machines{ get; set; }
}
}