具体类 (BankAccount和CreditCard) 在控制器上不可见。
我被这个问题困住了。
我正在使用此站点中的示例：
风景
CreateUser: _
如果CreditCard选择了它，它应该与User类相关联。
图表
编码
用户控制器：
[HttpPost]
public ActionResult Create(User user)//The Watch above came from this user instance
{
if (ModelState.IsValid)
{
context.User.Add(user);
context.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.PossibleBillingDetail = context.BillingDetail;
return View(user);
}
User\_CreateOrEdit.cshtml：
User\Create.cshtml：
@model TPTMVC.Models.User
@using TPTMVC.Models;
<script src="http://ajax.microsoft.com/ajax/jQuery/jquery-1.5.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$('.divbank').hide();
$('input[type=radio]').live('change', function () { updateweather(); });
});
function updateweather() {
//alert();
if ($('input[type=radio]:checked').val() == 'Bank') {
$('.divcard').fadeOut(1000);
$('.divcard').hide();
$('.divbank').fadeIn(1000);
}
else {
$('.divbank').fadeOut(1000);
$('.divbank').hide();
$('.divcard').fadeIn(1000);
}
}
</script>
<div id="json"></div>
@{
ViewBag.Title = "Create";
}
<h2>Create</h2>
@using (Html.BeginForm())
{
@Html.ValidationSummary(true)
<fieldset>
<legend>User</legend>
@Html.Partial("_CreateOrEdit", Model)
<div ='none' class="divcard">
<div class="editor-label">
@Html.LabelFor(model => ((CreditCard)model.billingDetail).ExpiryMonth)
</div>
<div class="editor-field">
@Html.EditorFor(model => ((CreditCard)model.billingDetail).ExpiryMonth)
@Html.ValidationMessageFor(model => ((CreditCard)model.billingDetail).ExpiryMonth)
</div>
<div class="editor-label">
@Html.LabelFor(model => ((CreditCard)model.billingDetail).ExpiryYear)
</div>
<div class="editor-field">
@Html.EditorFor(model => ((CreditCard)model.billingDetail).ExpiryYear)
@Html.ValidationMessageFor(model => ((CreditCard)model.billingDetail).ExpiryYear)
</div>
</div>
<div='none' class="divbank">
<div class="editor-label">
@Html.LabelFor(model => ((BankAccount)model.billingDetail).BankName)
</div>
<div class="editor-field">
@Html.EditorFor(model => ((BankAccount)model.billingDetail).BankName)
@Html.ValidationMessageFor(model => ((BankAccount)model.billingDetail).BankName)
</div>
<div class="editor-label">
@Html.LabelFor(model => ((BankAccount)model.billingDetail).Swift)
</div>
<div class="editor-field">
@Html.EditorFor(model => ((BankAccount)model.billingDetail).Swift)
@Html.ValidationMessageFor(model => ((BankAccount)model.billingDetail).Swift)
</div>
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
类代码：
namespace TPTMVC.Models{
public class BillingDetail
{
[Key]
[ForeignKey("user")]
public int UserID { get; set; }
public string Owner { get; set; }
public string Number { get; set; }
public virtual User user { get; set; }
}}
namespace TPTMVC.Models{
public class User
{
public int UserId { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public virtual BillingDetail billingDetail { get; set; }
}}
namespace TPTMVC.Models{
[Table("BankAccounts")]
public class BankAccount:BillingDetail
{
public string BankName { get; set; }
public string Swift { get; set; }
}}
namespace TPTMVC.Models{
[Table("CreditCards")]
public class CreditCard:BillingDetail
{
public int CardType { get; set; }
public string ExpiryMonth { get; set; }
public string ExpiryYear { get; set; }
}}
问题
当我单击创建按钮时，我得到以下结果：
我选择了一个CreditCard，但结果是BillingDetail。如您所见，我尝试进行铸造，但出现错误。
:(
为什么只BillingDetail出现在UserController？
我的第一个解决方案
[HttpPost]
public ActionResult Create(User user, CreditCard card, BankAccount bank, String Radio)
{
//String teste=formCollection["Radio"];
if (ModelState.IsValid)
{
switch (Radio)
{
case "CredCard":
user.billingDetail = card;
break;
case "Bank":
user.billingDetail = bank;
break;
}
context.User.Add(user);
context.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.PossibleBillingDetail = context.BillingDetail;
return View(user);
}