Question

即使我相信我已经定义了所有模型并希望正确传递但我得到一个错误，表明我在一个模型中传递它需要另一个模型时。

主要观点：

@model Project.Models.ProfileModel

 @(ViewBag.HasLocalPassword ? Html.Partial("_ChangePasswordPartial", Model.PasswordModel) : Html.Partial("_SetPasswordPartial", Model.PasswordModel))

            @Html.Partial("_UsernamePartial", Model.UsernameModel)
            @Html.Partial("_PlayNamePartial", Model.PlayNameModel)

型号：

 public class ProfileModel
{
    public PasswordModel PasswordModel { get; set; }
    public PlayNameModel PlayNameModel { get; set; }
    public UsernameModel UsernameModel { get; set; }
}

UserName Action GET：

public ActionResult _UsernamePartial()
    {
        var usernameModel = new UsernameModel();
        using (var db = new DataContext())
        {
            usernameModel.Username =
                (from u in db.Users where u.ID == WebSecurity.CurrentUserId select u.Username).FirstOrDefault();
        }
        return PartialView(usernameModel);
    }

UserName POST操作：

[HttpPost]
    public ActionResult _UsernamePartial(UsernameModel usernameModel)
    {
        if (ModelState.IsValid)
        {
            using (var db = new DataContext())
            {
                User user = db.Users.FirstOrDefault(u => u.ID == WebSecurity.CurrentUserId);
                user.Username = usernameModel.Username;
                db.SaveChanges();
            }
        }
        return View("_UsernamePartial");
    }

个人资料操作：

public ActionResult Profile(ManageMessageId? message)
    {
        var profile = New ProfileModel();
        ViewBag.StatusMessage =
            message == ManageMessageId.ChangePasswordSuccess ? "Your password has been changed."
            : message == ManageMessageId.SetPasswordSuccess ? "Your password has been set."
            : message == ManageMessageId.RemoveLoginSuccess ? "The external login was removed."
            : "";
        ViewBag.HasLocalPassword = OAuthWebSecurity.HasLocalAccount(WebSecurity.GetUserId(User.Identity.Name));
        ViewBag.ReturnUrl = Url.Action("Profile");
        return View(profile);


    }

查看用户名的页面：

@model Acatar.Models.UsernameModel

@using (Html.BeginForm("_UsernamePartial", "Account")) {

       <p id="legend">Username</p>
       @Html.TextBoxFor(m=>m.Username)

    <button type="submit" value=" Username">Save</button>
}

错误消息： The model item passed into the dictionary is of type 'Project.Models.ProfileModel', but this dictionary requires a model item of type 'Project.Models.UsernameModel'.

非常感谢我出错的地方。

Answer 1

当您发布到_UsernamePartial时，这将作为返回另一个部分的子操作方法。你回来了

您实际上是在传回View _UsernamePartial但返回它

return View("_UsernamePartial");

没有usernameModel

Answer 2

如果你调用Html.Partial，我不相信它会调用action方法。您应该使用Html.RenderAction（）来调用控制器操作。

在单个视图中传递多个视图模型

2 个答案: