我有一个在 HTTPPOST 上的 db.SaveChanges() 上失败的发票的创建视图。异常消息是 {"Invalid column name 'UserDetail_UserId'."}。在 POST 控制器中，我尝试添加到 InvoiceItems 表中的 invoiceitem 对象似乎正确填充了下拉列表中选定的用户名，该用户名由我的 UserDetails 表中的用户名填充。“UserId”是 UserDetails 表中的关键列，但它没有在下拉列表中使用，所以我不清楚为什么任何数据都试图保存到“UserDetail_UserId”列中。我的代码如下：
楷模：
public class InvoiceItem
{
//Identity Column
public int ServiceID { get; set; }
[Key]
public string ProfileUserName { get; set; }
public DateTime InvoiceDate { get; set; }
public string Address { get; set; }
public string Note { get; set; }
public decimal Price { get; set; }
public decimal SubTotal { get; set; }
public bool InvoicePaid { get; set; }
}
public class UserDetail
{
[Key]
public Guid UserId { get; set; }
public string ProfileUserName { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string FullName { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Zip { get; set; }
public string Phone { get; set; }
public DateTime DateUpdated { get; set; }
public virtual ICollection<InvoiceItem> InvoiceItems { get; set; }
}
public class ProShotDB : DbContext
{
public DbSet<UserDetail> UserDetails { get; set; }
public DbSet<UserLinkToken> UserLinkTokens { get; set; }
public DbSet<InvoiceItem> InvoiceItems { get; set; }
}
控制器：
public ActionResult Create()
{
ViewBag.ProfileUserNames = db.UserDetails.Select(
c => new
{
ProfileUserName = c.ProfileUserName,
NameAddress = c.FullName + " - " + c.Address
});
return View();
}
[HttpPost]
public ActionResult Create(InvoiceItem invoiceitem)
{
decimal Tax = 1.066m;
if (ModelState.IsValid)
{
invoiceitem.InvoiceDate = DateTime.Now;
invoiceitem.SubTotal = invoiceitem.Price*Tax;
invoiceitem.InvoicePaid = false;
db.InvoiceItems.Add(invoiceitem);
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.ProfileUserNames = db.UserDetails.Select(
c => new
{
ProfileUserName = c.ProfileUserName,
NameAddress = c.FullName + " - " + c.Address
});
return View(invoiceitem);
}
看法：
@model Pro_Shot_Portal.Models.InvoiceItem
@{
ViewBag.Title = "Input Invoice";
}
<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>Input Invoice:</legend>
<div class="alert alert-error" style="width:250px;">
<button type="button" class="close" data-dismiss="alert">×</button>
<strong>Warning!</strong> Assigning invoice to wrong user could cause major problems, please triple check before proceeding.
</div>
<div class="editor-label">
@Html.LabelFor(model => model.ProfileUserName, "Attach invoice to user")
</div>
<div class="editor-field">
@Html.DropDownListFor(model => model.ProfileUserName, new SelectList(ViewBag.ProfileUserNames, "ProfileUserName", "NameAddress"), "-- Pick Client For Invoice --")
@Html.ValidationMessageFor(model => model.ProfileUserName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Address)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Address)
@Html.ValidationMessageFor(model => model.Address)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Note)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Note)
@Html.ValidationMessageFor(model => model.Note)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Price)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Price)
@Html.ValidationMessageFor(model => model.Price)
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
<div>
@Html.ActionLink("Cancel Invoice Creation", "Index")
</div>
据我所知，invoiceitem 模型对象属性填充了正确的数据，并且我使用 db.SaveChanges() 调用的唯一数据库更改是“db.InvoiceItems.Add(invoiceitem);”。谁能告诉我它试图访问、写入或更新名为“UserDetails_UserId”的列的位置和原因。也许我在 DropdownListFor 上搞砸了，因为这是与 UserDetails 表交互的唯一部分？
谢谢。