一个或多个实体EF6的验证失败

Question

我正在尝试使用asp.net mvc4＆amp; EF6我只需在MS SQL 2012 DB中保存客户的数据即可。由于某些未知原因，每当我尝试保存数据时，我都会收到这样的错误，

  

一个或多个实体的验证失败。有关详细信息，请参阅“EntityValidationErrors”属性

以下是我的代码，

控制器

[HttpPost]
    public ActionResult ClientManager(ClManagement ClTable)
    {
        if (Session["AdminNAME"] != null)
        {
            if (ModelState.IsValid)
            {
                var AddClient = ClTable.AddUserInfo;
                try
                {
                    db.ClientInfoes.Add(AddClient);
                    db.SaveChanges();
                    TempData["client_add_success"] = "Information Added Successfully!";
                }
                catch (DbEntityValidationException dbEx)
                {
                    foreach (var validationErrors in dbEx.EntityValidationErrors)
                    {
                        foreach (var validationError in validationErrors.ValidationErrors)
                        {
                            System.Console.WriteLine("Property: {0} Error: {1}", validationError.PropertyName, validationError.ErrorMessage);
                        }
                    }
                }
                return RedirectToAction("ClientManager", new { ClPanelId = "AllCl" });
            }
            else
            {
                TempData["client_add_fail"] = "Error! Information Add failed!";
                return RedirectToAction("ClientManager", new { ClPanelId = "AllCl" });
            }
        }
        else
        {
            return RedirectToAction("AdminLogin");
        }
    }

模型

public class ClManagement
{
    public ClientInfo AddUserInfo { get; set; }
    public IEnumerable<ClientInfo> UserCollection { get; set; }
}

查看

@using (Html.BeginForm("ClientManager", "Home", FormMethod.Post))
            {
                @Html.ValidationSummary(true)
                <div class="editor-label">
                    <strong>Username</strong>
                </div>
                <div class="editor-field">
                    @Html.TextBoxFor(a => a.AddUserInfo.username, new { size = 50 })
                    @Html.ValidationMessageFor(a => a.AddUserInfo.username)
                </div>
                <div class="editor-label">
                    <strong>Password</strong>
                </div>
                <div class="editor-field">
                    @Html.PasswordFor(a => a.AddUserInfo.password, new { size = 50 })
                    @Html.ValidationMessageFor(a => a.AddUserInfo.password)
                </div>
                <div class="editor-label">
                    <strong>Email</strong>
                </div>
                <div class="editor-field">
                    @Html.TextBoxFor(a => a.AddUserInfo.email, new { size = 50 })
                    @Html.ValidationMessageFor(a => a.AddUserInfo.email)
                </div>
                <div class="editor-label">
                    <strong>Sex</strong>
                </div>
                <div class="editor-field">
                    @Html.DropDownListFor(a => a.AddUserInfo.sex, new List<SelectListItem>{
                        new SelectListItem() {Text = "Male", Value="Male"},
                        new SelectListItem() {Text = "Female", Value="Female"}
                    })
                    @Html.ValidationMessageFor(a => a.AddUserInfo.sex)
                </div>
                <div class="editor-label">
                    <strong>Blood Group</strong>
                </div>
                <div class="editor-field">
                    @Html.DropDownListFor(a => a.AddUserInfo.blood, new List<SelectListItem>{
                        new SelectListItem() {Text = "A+", Value="A+"},
                        new SelectListItem() {Text = "B+", Value="B+"},
                        new SelectListItem() {Text = "AB+", Value="AB+"},
                        new SelectListItem() {Text = "O+", Value="O+"},
                        new SelectListItem() {Text = "A-", Value="A-"},
                        new SelectListItem() {Text = "B-", Value="B-"},
                        new SelectListItem() {Text = "AB-", Value="AB-"},
                        new SelectListItem() {Text = "O-", Value="O-"}
                    })
                    @Html.ValidationMessageFor(a => a.AddUserInfo.blood)
                </div><br />
                <p><input type="submit" class="btn btn-info" value="Add" /></p>
            }

我该如何解决这个问题？什么可能出错？你的帮助对我来说可以挽救生命。谢谢！