Когда я нажимаю кнопку отправки, базовая модель не обновляется

Question

У меня есть строго типизированный вид, из которого я хочу вставить некоторые данные. Однако, когда я нажимаю кнопку отправки, базовая модель данных отправляется в качестве параметра в контроллер. Но когда я просматриваю содержимое параметра, он не обновляется с помощью ввода пользователем. Почему это?

Контроллер выглядит;

[HttpGet] 
[Authorize(Roles = "Administrator, AdminAccounts")] 
public ActionResult Add(int? id) 
{ 
    ViewData["LastPerson"] = string.Empty; 

    return View(new EmployeeViewModel()); 
} 

[HttpPost] 
[Authorize(Roles = "Administrator, AdminAccounts")] 
public ActionResult Add(EmployeeViewModel employeeViewModel) 
{ 
    if (ModelState.IsValid) 
    { 
     ViewData["LastPerson"] = employeeViewModel.Employee.Forename + " " + 
           employeeViewModel.Employee.Surname; 
     employeeViewModel.Employee.Add(); 
    } 
    return View(new EmployeeViewModel()); 
} 

Вид выглядит;

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/AdminAccounts.master" 
Inherits="System.Web.Mvc.ViewPage<SHP.WebUI.Models.EmployeeViewModel>" %> 

<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> 
    Add 
</asp:Content> 

<asp:Content ID="Content2" ContentPlaceHolderID="AdminAccountsContent" runat="server"> 

    <% using (Html.BeginForm("Add", "Employee")) {%> 
     <%: Html.ValidationSummary(true) %> 

     <fieldset> 
      <legend>Add Employee</legend> 
      <table> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Employee.Forename) %> 
        </td>      
        <td> 
       <%: Html.EditorFor(model => model.Employee.Forename)%> 
       <%: Html.ValidationMessageFor(model => model.Employee.Forename)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 

       <%: Html.LabelFor(model => model.Employee.Surname)%> 
        </td>      
        <td> 

       <%: Html.EditorFor(model => model.Employee.Surname)%> 
       <%: Html.ValidationMessageFor(model => model.Employee.Surname)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Employee.Middlenames)%> 
        </td>      
        <td> 
       <%: Html.EditorFor(model => model.Employee.Middlenames)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Employee.EmployeeNumber)%> 
        </td>      
        <td> 
       <%: Html.EditorFor(model => model.Employee.EmployeeNumber)%> 
       <%: Html.ValidationMessageFor(model => model.Employee.EmployeeNumber)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Division.DivisionId) %> 
        </td>      
        <td> 
       <%: Html.DropDownListFor(model => model.Division.DivisionId, Model.DivisionSelectList, "<--Select-->")%> 
       <%: Html.ValidationMessageFor(model => model.Division.DivisionId)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Department.DepartmentId) %> 
        </td>      
        <td> 
       <%: Html.DropDownListFor(model => model.Department.DepartmentId, Model.DepartmentSelectList, "<--Select-->")%> 
       <%: Html.ValidationMessageFor(model => model.Department.DepartmentId) %> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Employee.AnnualLeaveAllocation) %> 
        </td>      
        <td> 
       <%: Html.EditorFor(model => model.Employee.AnnualLeaveAllocation)%> 
       <%: Html.ValidationMessageFor(model => model.Employee.AnnualLeaveAllocation)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Employee.ChristmasAllocation)%> 
        </td>      
        <td> 
       <%: Html.EditorFor(model => model.Employee.ChristmasAllocation)%> 
       <%: Html.ValidationMessageFor(model => model.Employee.ChristmasAllocation)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="right"> 
       <%: Html.LabelFor(model => model.Employee.EmailAddress)%> 
        </td>      
        <td> 
       <%: Html.EditorFor(model => model.Employee.EmailAddress)%> 
       <%: Html.ValidationMessageFor(model => model.Employee.EmailAddress)%> 
        </td> 
       </tr> 
       <tr> 
        <td align="center" colspan="2" style="padding-top:20px;"> 
        <input type="submit" value="Save" /></td> 
       </tr> 
      </table> 
      <% if (ViewData["LastPerson"].ToString().Length > 0) 
       { %> 
       <p> 
        At time <% Response.Write(DateTime.Now.ToString("T")); %> 
        - You have just entered <%Response.Write(ViewData["LastPerson"].ToString()); %>. 
       </p> 
      <%} %> 
     </fieldset> 

    <% } %> 

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

Модель выглядит;

public class EmployeeViewModel 
{ 
    public Employee Employee; 
    public Department Department; 
    public Division Division; 
    public IList<Department> Departments { get; set; } 
    public IEnumerable<SelectListItem> DepartmentSelectList 
    { 
     get 
     { 
      return this.Departments.Select(item => new SelectListItem 
      { 
       Text = item.DepartmentName, 
       Value = item.DepartmentId.ToString() 
      }); 
     } 
    } 
    public IList<Division> Divisions { get; set; } 
    public IEnumerable<SelectListItem> DivisionSelectList 
    { 
     get 
     { 
      return this.Divisions.Select(item => new SelectListItem 
      { 
       Text = item.DivisionName, 
       Value = item.DivisionId.ToString() 
      }); 
     } 
    } 
    /// <summary> 
    /// EmployeeViewModel() - CONSTRUCTOR 
    ///      Gets all of the divisions. 
    ///      Used to populate the drop down list so that you can assign 
    ///      an employee to a division. 
    /// </summary> 
    public EmployeeViewModel() 
    { 
     this.Employee = new Employee(); 
     this.Departments = new List<Department>(); 
     this.Divisions = new List<Division>(); 
     using (SHPContainerEntities db = new SHPContainerEntities()) 
     { 
      this.Divisions = db.Divisions.ToList(); 
     } 
    } 

Answer 1

Когда вы публикуете в надстройку контроллера вы только переходящие в Работника не EmployeeViewModel. Поэтому вы можете попробовать что-то вроде:

[HttpPost] 
[Authorize(Roles = "Administrator, AdminAccounts")] 
public ActionResult Add(Employee employee) 
{ 
    var employeeViewModel = new EmployeeViewModel(); 
    if (ModelState.IsValid) 
    { 
     ViewData["LastPerson"] = employee.Forename + " " + employee.Surname; 
     employeeViewModel.Employee = employee; 
     employeeViewModel.Employee.Add(); 
    } 
    return View(employeeViewModel); 
}