Asp.net mvc 在ASP.NET MVC4中保存和编辑视图模型

我有一个ViewModel，它由三个实体连接，以将所有实体中的数据合并到一个视图表单中。尽管我成功地实现了同样的功能。但我不知道如何编辑数据并将其保存回数据库。我的模型类通过一对一关系连接

我的模型是：

public class Doctor
{
    public int DoctorId { get; set; }
    public string Name { get; set; }
    public string Speciality { get; set; }

    public virtual DoctorAddress DoctorAddress { get; set; }
    public virtual DoctorCharge DoctorCharge { get; set; }
    public virtual DoctorAvailablity DoctorAvailablity { get; set; }

}

public class DoctorAddress
{
    public int DoctorId { get; set; }
    public string Address { get; set; }
    public string City { get; set; }

    public virtual Doctor Doctor { get; set; }
}

public class DoctorCharge
{
    public int DoctorId { get; set; }
    public decimal OPDCharge { get; set; }
    public decimal IPDCharge { get; set; }

    public virtual Doctor Doctor { get; set; }
}

我的ViewModel是：

public class DoctorViewModel
{
    public Doctor Doctor { get; set; }
    public DoctorAddress DoctorAddress { get; set; }
    public DoctorCharge DoctorCharge { get; set; }


    //Doctor attributes
    public int DoctorId { get; set; }
    public string Name { get; set; }
    public string Speciality { get; set; }
    public DateTime DateOfJoinig { get; set; }

    //DoctorAddress attributes
    public string Address { get; set; }
    public string Area { get; set; }
    public string City { get; set; }

    //DoctorCharge attributes
    public decimal OPDCharge { get; set; }
    public decimal OPDRevisitCharge { get; set; }


}

我的控制器是：

[HttpPost]
    public ActionResult Create(DoctorDetailsViewModel doctorViewModel)
    {
        if (ModelState.IsValid)
        {
            var d = new Doctor()
             {
                 Name =doctorViewModel.Doctor.Name,
                 Speciality = doctorViewModel.Speciality,
                 DateOfJoinig = doctorViewModel.DateOfJoinig

             };

            var da = new DoctorAddress()
            {
                DoctorId = doctorViewModel.DoctorId,
                Address = doctorViewModel.Address,
                City = doctorViewModel.City
            };


            var dc = new DoctorCharge()
            {
                DoctorId = doctorViewModel.DoctorId,
                OPDCharge = doctorViewModel.OPDCharge,
                OPDRevisitCharge = doctorViewModel.OPDRevisitCharge
            };

            db.Doctors.Add(d);
            db.DoctorAddress.Add(da);
            db.DoctorCharges.Add(dc);

            db.SaveChanges();
            return RedirectToAction("Index");
        }

        return View(doctorViewModel);
    }

我的看法是：

@model HospitalManagementSystem.Models.Doctor

@{
ViewBag.Title = "Create";
}

<fieldset>
<legend>Doctor</legend>

<div class="editor-label">
   Name
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Name)
</div>
<div class="editor-label">
   Speciality 
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Speciality)
</div>
<div class="editor-label">
   DateOfJoinig 
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.DateOfJoinig)
</div>
<div class="editor-field">
        @Html.HiddenFor(model => model.DoctorId)
</div>

<div class="editor-label">
    Address
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.DoctorAddress.Address)
</div> 
<div class="editor-label">
    Area
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.DoctorAddress.Area)
</div> 
<div class="editor-label">
    City
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.DoctorAddress.City)
</div> 
<div class="editor-field">
        @Html.HiddenFor(model => model.DoctorId)
</div>

<div class="editor-label">
    OPD Charge
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.DoctorCharge.OPDCharge)
</div>

<div class="editor-label">
    OPDRevisitCharge 
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.DoctorCharge.OPDRevisitCharge)
</div>
<p>
    <input type="submit" value="Create" />
 </p>
</fieldset>        
 }

@model HospitalManagementSystem.Models.Doctor
@{
ViewBag.Title=“创建”；
}
医生
名称
@EditorFor（model=>model.Name）
特长
@EditorFor（model=>model.Speciality）
加入日期
@EditorFor（model=>model.DateOfJoinig）
@Html.HiddenFor（model=>model.DoctorId）
地址
@EditorFor（model=>model.DoctorAddress.Address）
地区
@EditorFor（model=>model.DoctorAddress.Area）
城市
@EditorFor（model=>model.DoctorAddress.City）
@Html.HiddenFor（model=>model.DoctorId）
门诊费
@EditorFor（model=>model.DoctorCharge.OPDCharge）
光电电荷
@EditorFor（model=>model.DoctorCharge.OPDRevisitCharge）


}

---

我在保存时收到错误消息：“传递到字典中的模型项类型为

HM.ViewModels.DoctorDetailsViewModel

，但此字典需要类型为

HM.Models.Doctor

的模型项。”

请帮我怎么办。提前感谢。

此行：

@model HospitalManagementSystem.Models.Doctor

声明视图需要类型为

Doctor

（实体）的ViewModel，但此行：

return View(doctorViewModel);

实际上正在将

DoctorDetailsViewModel

对象作为ViewModel传递

尝试将ViewModel类型更改为

DoctorDetailsViewModel

：

@model DoctorDetailsViewModel 

---

我在保存时收到错误消息：“传递到字典中的模型项的类型为'HM.ViewModels.DoctorDetailsViewModel'，但此字典需要'HM.Models.Doctor'类型的模型项。我尝试更改了您告诉我的模型项，但当我单击“创建”时，数据未保存并重定向到同一页面。没有错误的迹象！可能是您的

ModelState.IsValid

为false。