如何在管理MVC 4应用程序中重用模型和视图以进行添加和编辑

我正在用C＃构建MVC 4应用程序，并且我一直在做很多彼此非常相似的添加和编辑视图。我的问题是如何通过填充用于添加和编辑项目的表单，对返回的对象使用与模型相同的视图。这是我在我的应用程序中所做的示例：

@model namespace.Register
@{
    ViewBag.Title = "Manage User";
}

<div class="col1 manage-user">
<div>   
    @using (Html.BeginForm())
    {
        <h1>Add User</h1>
        <div id="error" class="clear">@Html.ValidationSummary(true)</div>
        <ul class="clear">
            <li><label for="UserName">Username:</label>
                @Html.EditorFor(x => x.UserName)
            </li>
            <li><label for="Password">Password:</label>
                @Html.EditorFor(x => x.Password)
            </li>
            <li><label for="ConfirmPassword">Confirm password:</label>
                @Html.EditorFor(x => x.ConfirmPassword)
            </li>
            <li>
                <label for="level">Level:</label>
                @Html.DropDownList("levels", Model.Elements.Levels)
            </li>
        </ul>

        <div class="buttons">
            <input type="submit" class="button create" value="Save" name="Save"/>
            <input type="submit" class="button back" value="Back" name="Back" formnovalidate/>
        </div>
    }
</div>

和我的添加方法：

public ActionResult AddUser()
    {
        Levels levels = new Levels(MyRepository.GetLevelsForUser(User.Identity.Name));
        Register model = new Register(levels);
        return View(register);
    }

    [HttpPost]
    public ActionResult AddUser(Register model, FormCollection form)
    {
        if(form["Back"] != null)
        {
            return RedirectToAction("UserList");
        }

        if (ModelState.IsValid)
        {
        ... add user logic
        }    

        // If we got this far, something failed, redisplay form
        ModelState.AddModelError("", "Please enter valid username and password.");
        return View(model);
    }

当我编辑时，我需要打开与AddUser相同的视图，但在模型中填充适当的属性，然后发布以保存模型中的更改。目前，我使用ViewData [“ Username”]，||-|| “密码”，因此要执行此操作，有没有更好的方法可以重用此AddUser视图？

寄存器模型如下

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

    [Required]
    [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
    [DataType(DataType.Password)]
    [Display(Name = "Password")]
    public string Password { get; set; }

    [DataType(DataType.Password)]
    [Display(Name = "Confirm password")]
    [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
    public string ConfirmPassword { get; set; }

    public Levels Levels { get; set; }

    public Register()
    {
        UserName = null;
        Password = null;
        ConfirmPassword = null;
        Levels = null;
    }

    public Register(Levels levels)
    {
        UserName = null;
        Password = null;
        ConfirmPassword = null;
        Levels = levels;
    }   
}