所以现在我正在尝试创建一个用户管理页面。该页面的主要模型实际上是一个IdentityUser，但我试图从视图中更新的模型是IdentityRole
以下是观点：
@model AG.SharedServices.DTO.IdentityUser
@{
ViewBag.Title = "Edit";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Edit</h2>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>IdentityUser</h4>
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
@Html.HiddenFor(model => model.Id)
<div class="form-group">
@Html.LabelFor(model => model.FirstName, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.FirstName, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.FirstName, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.LastName, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.LastName, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.LastName, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<ul>
@foreach (var role in TempData["Roles"] as IEnumerable<AG.SharedServices.DTO.IdentityRole>)
{
<li>
<input name="@role.Name" type="checkbox" value="@role.Selected" />@role.Name
</li>
}
</ul>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Save" class="btn btn-default" />
</div>
</div>
</div>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
我也尝试将“<input type="submit" value="Save" class="btn btn-default" />”替换为“@Html.CheckBoxFor(r => role.Selected)”但是两个都没有传回复选框的值，它总是返回false。并且CheckBoxFor不会接受任何其他值而不是IdentityUser，这是一个问题，如果我知道如何让它接受不同的模型它会有所帮助
这是控制器。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using AG.SharedServices.DTO;
using System.Data;
using AG.BusinessServices;
using System.Net;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
namespace AG.AGWeb.Controllers
{
public class UserAdminController : Controller
{
private ApplicationUserManager _userManager;
public UserAdminController()
{
}
public UserAdminController(ApplicationUserManager userManager)
{
_userManager = userManager;
}
public ApplicationUserManager UserManager
{
get
{
return _userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();
}
private set
{
_userManager = value;
}
}
// GET: UserAdmin
public ActionResult Index()
{
var users = UserManager.Users;
return View(users);
}
// GET: UserAdmin/Details/5
public ActionResult Details(int id)
{
return View();
}
// GET: UserAdmin/Create
public ActionResult Create()
{
return View();
}
// POST: UserAdmin/Create
[HttpPost]
public ActionResult Create(FormCollection collection)
{
try
{
// TODO: Add insert logic here
return RedirectToAction("Index");
}
catch
{
return View();
}
}
// GET: UserAdmin/Edit/5
public ActionResult Edit(string id)
{
var user = UserManager.FindById(id);
var roleService = new RoleService();
var roles = roleService.GetRoles();
//add code to check users roles
var userRoles = UserManager.GetRoles(id);
foreach(var role in roles)
{
role.Selected = userRoles.Contains(role.Name);
}
TempData["Roles"] = roles;
TempData.Keep("Roles");
return View(user);
}
// POST: UserAdmin/Edit/5
[HttpPost, ActionName("Edit")]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Edit(IdentityUser model, string id)
{
try
{
// TODO: Add update logic here
if (model == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
if (ModelState.IsValid)
{
var user = UserManager.FindById(id);
user.FirstName = model.FirstName;
user.LastName = model.LastName;
user.PhoneNumber = model.PhoneNumber;
var results = await UserManager.UpdateAsync(user);
if (results.Succeeded)
{
var roles = TempData["Roles"] as IEnumerable<IdentityRole>;
foreach(var role in roles)
{
if (role.Selected && await UserManager.IsInRoleAsync(id, role.Id) == false)
{
await UserManager.AddToRoleAsync(id, role.Id);
}
else
{
await UserManager.RemoveFromRoleAsync(id, role.Id);
}
}
}
}
return RedirectToAction("Index");
}
catch
{
return View();
}
}
// GET: UserAdmin/Delete/5
public ActionResult Delete(string id)
{
var user = UserManager.FindById(id);
return View(user);
}
// POST: UserAdmin/Delete/5
[HttpPost]
public ActionResult Delete(int id, FormCollection collection)
{
try
{
// TODO: Add delete logic here
return RedirectToAction("Index");
}
catch
{
return View();
}
}
}
}
我们试图传递的模型是IdentityRole，如下所示：
using Microsoft.AspNet.Identity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace AG.SharedServices.DTO
{
public class IdentityRole : IRole
{
/// <summary>
/// Default constructor for Role
/// </summary>
public IdentityRole()
{
Id = Guid.NewGuid().ToString();
}
/// <summary>
/// Constructor that takes names as argument
/// </summary>
/// <param name="name"></param>
public IdentityRole(string name)
: this()
{
Name = name;
}
public IdentityRole(string name, string id)
{
Name = name;
Id = id;
}
/// <summary>
/// Role ID
/// </summary>
public string Id { get; set; }
/// <summary>
/// Role name
/// </summary>
public string Name { get; set; }
public bool Selected { get; set; }
}
}
有没有人对如何在视图中使用foreach循环以传递IdentityRoles并更改角色的Selected值以便将用户分配给角色有任何想法？
谢谢！
答案 0 :(得分：1)
你应该在你的行动中使用类似于角色数组的UserIdentityModel
public class UserIdentityModel
{
...
public IList<IdentityRole> Roles { get; set; }
}
并在视图
上创建角色列表 @model UserIdentityModel
...
<ul>
@for (var i = 0; i < Model.Roles.Count; i++)
{
<li>
<input name="@("Roles[" + i + "].Selected")" type="checkbox" value="@(Model.Roles[i].Selected)" />@Model.Roles[i].Name
<input type="hidden" name="@("Roles[" + i + "].Name")" value="@(Model.Roles[i].Name)">
<input type="hidden" name="@("Roles[" + i + "].Id")" value="@(Model.Roles[i].Id)">
</li>
}
</ul>
在您的帖子操作中，您将收到带有角色集合的UserIdentityModel
public ActionResult Edit(string id)
{
var user = UserManager.FindById(id);
var model = new UserIdentityModel();
///Fill all fields of the model
return View(model);
}
// POST: UserAdmin/Edit/5
[HttpPost, ActionName("Edit")]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Edit(UserIdentityModel model)
{
...
foreach(var role in model.Roles)
{
...
}