Question

我试图使用实体框架来更新我的数据库中的记录问题是当我尝试更新记录时，我得到了dbEntity验证错误因为我的模型上有[EmailAddress]验证，当我想要更新某些内容时，是否还要覆盖此验证？

模特：

public partial class T
{
    public int Id { get; set; }

    [Required]
    public string name { get; set; }
    public string lastname { get; set; }

    [Required]
    [EmailAddress]
    public string email { get; set; }
}

这是更新：

[HttpPost]
    public ActionResult UpdateR(int id, FormCollection collection)
    {
        try
        {
            var user = new T() { Id = id, email = "Deactivated"};
            using (var db = new Database1Entities())
            {
                db.T.Attach(user);
                db.Entry(user).Property(x => x.email).IsModified = true;
                db.SaveChanges();

                return RedirectToAction("Index");
            }


        }
        catch (Exception e)
        {
            ViewBag.message = e.ToString();
            return View();
        }
    }

和视图：

  <table id="mytable" class="table table-bordered table-striped">
  <thead>
  <tr>
      <th>@Html.DisplayNameFor(item => item.name)</th>
      <th>@Html.DisplayNameFor(item => item.lastname)</th>
      <th>@Html.DisplayNameFor(item => item.email)</th>
  </tr>
  </thead>
  <tbody>
  @foreach (var item in Model)
  {
      <tr>
          <td>@Html.DisplayFor(mitem => item.name)</td>
          <td>@Html.DisplayFor(mitem => item.lastname)</td>
          <td>@Html.DisplayFor(mitem => item.email)</td>
          <td>@Html.ActionLink("Update", "UpdateR", new { id = item.Id})
</td>
      </tr>
  }
  </tbody>
</table>

修改：

db.Configuration.ValidateOnSaveEnabled = false;

在db.SaveChanges（）之前;如果有人有同样的问题，我会为我工作。

Ref

Answer 1

我将DbContextConfiguration.ValidateOnSaveEnabled Property更改为false。

[HttpPost]
public ActionResult UpdateR(int id, FormCollection collection)
{
    try
    {
        var user = new T() { Id = id, email = "Deactivated"};
        using (var db = new Database1Entities())
        {
            db.Configuration.ValidateOnSaveEnabled = false;
            db.T.Attach(user);
            db.Entry(user).Property(x => x.email).IsModified = true;
            db.SaveChanges();

            return RedirectToAction("Index");
        }


    }
    catch (Exception e)
    {
        ViewBag.message = e.ToString();
        return View();
    }
}

如何使用实体框架更新数据库中的记录时覆盖模型验证

1 个答案: