Question

我正在使用此网站，我在将复选框设置为数据库以设置true或false时将我的IsActive值设置为true或false以使用代码更新帐户时遇到困难关于MVC的第一种方法。

在我的帐户和身份模型上

公共类RegisterViewModel { public bool IsActive {get;组; } }

和我的帐户控制器

  //
    // GET: /Account/Update
    [HttpGet]
    [ETAuthorizeAttribute]
    public ActionResult Update(string email)
    {
        var user = _db.Users.FirstOrDefault(x => x.Email == email);
       ViewBag.IsActive = user.IsActive;
        ViewBag.CostCentres = new SelectList(_db.CostCentres.Select(x => x.Station).Distinct());
        ViewBag.Hotel = new SelectList(_db.Hotels.Where(x => x.IsBlocked == true).Distinct(), "HotelId", "HotelName");
        string selected = "";
        foreach (var item in user.Roles)
            selected += item.RoleId + ",";
        ViewBag.Selected = selected;
        ViewBag.Roles = _db.Roles.ToList();

        RegisterViewModel model = new RegisterViewModel();
        model.Email = user.Email;
        return View(model);
    }

    //
    // POST: /Account/Register
    [HttpPost]
    [ETAuthorizeAttribute]
    [ValidateAntiForgeryToken]
    public ActionResult Update(RegisterViewModel model)
    {

        bool isActive = Convert.ToBoolean(Request.Form["active"]);
        string role = Request.Form["role"];
        if (role != null)
        {

            ApplicationUser user = _db.Users.FirstOrDefault(x => x.Email == model.Email);
            if (user != null)
            {
                user.HotelId = model.HotelId;
                user.Station = model.Station;
                user.FullName = model.FullName;
                 user.IsActive = isActive;

                try { 

                _db.Entry(user).State = EntityState.Modified;
                _db.SaveChanges();
                }
            //  return RedirectToAction("Index");

                catch(Exception e)
                { 
                _db.ClearUserRoles(UserManager, user.Id);
                string[] roles = role.Split(',');
                foreach (var item in roles)
                {
                    string name = _db.Roles.FirstOrDefault(x => x.Id == item).Name;
                    _db.AddUserToRole(UserManager, user.Id, name);
                }
                return RedirectToAction("Index", "Account");
            }
            }
        }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

并且在我看来......

  <div class="form-group">
         @Html.Label("IsActive", new { @class = "control-labelcol-md-2" })
               <div class="col-md-10">
        <div class="checkbox col-md-3">
 @if (ViewBag.IsActive)
 { 
 <input type="checkbox" name="active" value="@ViewBag.IsActive" checked/>}
    else
           {
 <input type="checkbox" name="active" value="@ViewBag.IsActive"  /> }
                            </div>

                    </div>
                </div>

Answer 1

基本上，您必须将HTML控件的名称与控制器示例中的变量相同：

public ActionResult Index(bool checkboxControl)
{
   return View();
}

在HTML端，代码必须是

<input type="checkbox" name="checkboxControl" />

如果您首先使用代码优先方法或数据库，这无关紧要，这是MVC工作的基本方法

Answer 2

您没有在模型中传递复选框的值

<div class="form-group">
     @Html.Label("IsActive", new { @class = "control-labelcol-md-2" })
     <div class="col-md-10">
        <div class="checkbox col-md-3">
             @if (ViewBag.IsActive)
                   { 
                     <input type="checkbox" name="active" value="@ViewBag.IsActive" checked/>
                   } else
                        {
                          <input type="checkbox" name="active"     value="@ViewBag.IsActive"  /> }
         </div>

      </div>
</div>

将此更改为

    <div class="form-group">
             @Html.Label("IsActive", new { @class = "control-labelcol-md-2})
                <div class="col-md-10">
                    <div class="checkbox col-md-3">
                    @Html.CheckBoxFor(m => m.IsActive, new { id = "YourId"})
                    </div>
                </div>
     </div>

您需要检查视图，它将根据您从服务器端传递的值工作..

希望它对你有用..

无法转换为布尔

2 个答案: