Question

根据我的经验，我可以使用EntityFrameWork（带有视图的MVC 5控制器，使用EntityFramework）为Job和任何其他不是从IdentityUser派生的类生成CRUD的控制器和视图。我想在我的应用程序中有一个功能，其中角色管理员admin将能够删除同一用户表中的其他用户。如何使用EF生成控制器和视图？任何帮助，将不胜感激。谢谢！

public class User : IdentityUser
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public ICollection<Job> Jobs { get; set; }
}

public class Job
{
    public int Id JobId {get; set;}
    public string JobDetails {get; set;}
    public bool isDone {get; set;}
    public virtual User User {get; set;}
}

public class ApplicationDbContext : IdentityDbContext<User>
{
    public ApplicationDbContext()
        : base("DefaultConnection")
    {
    }
    public DbSet<Job> Jobs { get; set; }
}

}

Answer 1

周围有很好的博客文章，谈论这个非常具体的话题。我将简要介绍如何以及从何处开始。

我将约翰·阿滕斯的例子提到reference。

由于您已经拥有User类，因此可以直接进入AccountController并实现索引方法。您希望首先显示所有用户，以便选择要删除的用户。

[Authorize(Roles = "Admin")]
public ActionResult Index()
{
    var Db = new ApplicationDbContext();
    var users = Db.Users;
    //ViewModel will be posted at the end of the answer
    var model = new List<EditUserViewModel>();
    foreach(var user in users)
    {
        var u = new EditUserViewModel(user);
        model.Add(u);
    }
    return View(model);
}

从那里你可以实现删除方法（GET和POST）：

[Authorize(Roles = "Admin")]
public ActionResult Delete(string id = null)
{
    var Db = new ApplicationDbContext();
    var user = Db.Users.First(u => u.UserName == id);
    var model = new EditUserViewModel(user);
    if (user == null)
    {
        return HttpNotFound();
    }
    return View(model);
}


[HttpPost, ActionName("Delete")]
[ValidateAntiForgeryToken]
[Authorize(Roles = "Admin")]
public ActionResult DeleteConfirmed(string id)
{
    var Db = new ApplicationDbContext();
    var user = Db.Users.First(u => u.UserName == id);
    Db.Users.Remove(user);
    Db.SaveChanges();
    return RedirectToAction("Index");
}

EditUserViewModel

public class EditUserViewModel
{
    public EditUserViewModel() { }

    // Allow Initialization with an instance of ApplicationUser:
    public EditUserViewModel(ApplicationUser user)
    {
        this.UserName = user.UserName;
        this.FirstName = user.FirstName;
        this.LastName = user.LastName;
        this.Email = user.Email;
    }

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

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

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

    [Required]
    public string Email { get; set; }

    //you might want to implement jobs too, if you want to display them in your index view
}

*刚刚：这不是我自己的代码。这是John Atten在http://typecastexception.com撰写的一个例子。 *

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