Question

参与我的第一个MVC 3项目，但这似乎很简单。我有一个viewmodel类，其属性是另一个viewmodel。（参见下面的代码）当我已经有一个拥有它的所有代码时，再次为其他视图模型重新创建所有相同的相同代码（验证/属性）似乎不正确。

当我打电话给编辑时，一切正常。表单显示我希望看到的值，但验证在“LoginId”远程验证上失败，因为LoginId为null。我无法弄清楚我做错了什么。

Customer类ValidateLogin方法中发生了故障。最后列在下面。

如果这不是最佳做法，请指出我正确的方向。

以下是相关代码。

模型

public class UserViewModel
{
    [Display(Name = "Customer Id")]
    public Guid CustomerId { get; set; }

    [Required(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "FirstNameRequired")]
    [StringLength(50, ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "FirstNameStringLength")]
    [Display(Name = "First Name")]
    public string FirstName { get; set; }

    [Required(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "LastNameRequired")]
    [StringLength(50, ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "LastNameStringLength")]
    [Display(Name = "Last Name")]
    public string LastName { get; set; }

    [Required(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "LoginIdRequired")]
    [StringLength(100, ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "LoginIdStringLength")]
    [Remote("ValidateLogin", "Validation")]
    [Display(Name = "Login")]
    public string LoginId { get; set; }

    [Required(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "PasswordRequired")]
    public string Password { get; set; }

    [Required(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "ConfirmPasswordRequired")]
    [Compare("Password", ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "ConfirmPasswordCompare")]
    [Display(Name = "Confirm Password")]
    public string ConfirmPassword { get; set; }

    [Required(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "EmailRequired")]
    //[RegularExpression(@"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}")]
    [StringLength(100, ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "EmailStringLength")]
    [Email(ErrorMessageResourceType = typeof(UserErrorMessages), ErrorMessageResourceName = "EmailInvalid")]
    public string Email { get; set; }
}

public class CustomerAccountViewModel
{
    public UserViewModel User { get; set; }

    [Display(Name = "MI")]
    [StringLength(1, ErrorMessageResourceType = typeof(CustomerAccountErrorMessages), ErrorMessageResourceName = "MiddleInitialStringLength")]
    public string MiddleInitial { get; set; }

    public IEnumerable<SelectListItem> SuffixList { get; set; }

    [StringLength(5, ErrorMessageResourceType = typeof(CustomerAccountErrorMessages), ErrorMessageResourceName = "SuffixStringLength")]
    public string Suffix { get; set; }
}

控制器

    public ActionResult Edit(Guid id)
    {
        Customer customer = new Customer();

        CustomerAccountViewModel model = new CustomerAccountViewModel();

        // Get the temporary user record that was created.
        model.User = customer.GetUserRegistration(id);

        // Set the list of valid suffixes.
        model.SuffixList = Utilities.CreateSuffixList().Select(s => new SelectListItem() { Value = s.ToString(), Text = s.ToString() });

        return View(model);
    }

查看

@model SteadyPay.Models.CustomerAccountViewModel
@using Resources;

@{
ViewBag.Title = "Edit";
}

<h2>Edit</h2>

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
    <legend>CustomerAccountViewModel</legend>

            Note: This calls the editor template (User.cshtml) listed below.
    @Html.EditorFor(model => model.User)

    <div class="editor-label">
        @Html.Label(@CustomerAccountViewText.MiddleInitialDisplay)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.MiddleInitial)
        @Html.ValidationMessageFor(model => model.MiddleInitial)
    </div>

    <div class="editor-label">
        @Html.Label(@CustomerAccountViewText.SuffixDisplay)
    </div>
    <div class="editor-field">
        @Html.DropDownListFor(model => model.Suffix, Model.SuffixList, string.Empty, Model.Suffix)
        @Html.ValidationMessageFor(model => model.Suffix)
    </div>

    <p>
        <input type="submit" value="Save" />
    </p>
</fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

User.cshtml

@model SteadyPay.Models.UserViewModel
@using Resources;

@Html.ValidationSummary(true)
<fieldset>
<div class="editor-label">
    @Html.Label(@UserViewText.FirstNameDisplay)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.FirstName)
    @Html.ValidationMessageFor(model => model.FirstName)
</div>

<div class="editor-label">
    @Html.Label(@UserViewText.LastNameDisplay)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.LastName)
    @Html.ValidationMessageFor(model => model.LastName)
</div>

<div class="editor-label">
    @Html.Label(@UserViewText.LoginIdDisplay)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.LoginId)
    @Html.ValidationMessageFor(model => model.LoginId)
</div>

<div class="editor-label">
    @Html.Label(@UserViewText.PasswordDisplay)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Password)
    @Html.ValidationMessageFor(model => model.Password)
</div>

<div class="editor-label">
    @Html.Label(@UserViewText.ConfirmPasswordDisplay)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.ConfirmPassword)
    @Html.ValidationMessageFor(model => model.ConfirmPassword)
</div>

<div class="editor-label">
    @Html.Label(@UserViewText.EmailDisplay)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Email)
    @Html.ValidationMessageFor(model => model.Email)
</div>
</fieldset>

远程验证器

public class ValidationController : Controller
{
    // NOTE: The parameter name(s) have to match the property name envoking the validation,
    //       and any name(s) in the AdditionalFields parameter of the Remote definition.
    public JsonResult ValidateLogin(string loginId)
    {
        Customer customer = new Customer();
        bool validLogin = customer.ValidateLogin(loginId);

        return Json(validLogin, JsonRequestBehavior.AllowGet);
    }

}

客户类代码 这是代码失败的地方，loginId为空

    public bool ValidateLogin(string loginId)
    {
        // TODO: Add logic to validate if the LoginId is unique.
        bool uniqueLogin = !loginId.Equals("khahn");

        return uniqueLogin;
    }

ViewModel属性的对象内的属性值为null

0 个答案: