Edit.cshtml

 <div class="form-actions">
   <button type="submit" class="btn btn-primary" >Save changes</button>
   @Html.ActionLink("Cancel", "Index", new {id=Model.Contact.Number}, new { @class = "btn " })
 </div>

MemberController.cs

 [HttpPost]
 [ValidateAntiForgeryToken]
 public ActionResult Edit(Activity activity)
 {
    try
    {
        byte[] committeeMemberSpeId = Convert.FromBase64String(activity.Id);
       var committeeMember = db.Committee_Member.FirstOrDefault(x => x.Committee_Member_Id == committeeMemberId);
       if (ValidateEndDate(activity))  //Show here PartialView("ErrorDetail");
       if (ModelState.IsValid)
       {
          if (committeeMember != null)
          {
              ....
              ....
              db.Entry(committeeMember).State = EntityState.Modified;
                        db.SaveChanges();
                        Success("Your information was saved!");
                        return RedirectToAction("Index", new { id = committeeMember.Customer_Number });
            }
        }
        ViewBag.Roles = TempData["Roles"];
        TempData["Roles"] = TempData["Roles"];
        return View(activity);


      }             
      catch (Exception exception)
      {
           Elmah.ErrorSignal.FromCurrentContext().Raise(exception);
           PartialView("ErrorDetail");
      }
  }

我们怎么能这样做？

Answer 1

您可以使用Ajax请求发布帖子并将Json从操作返回到视图，然后在jquery Ajax调用的回调中显示对话框中的错误：

 [HttpPost]
 [ValidateAntiForgeryToken]
 public ActionResult Edit(Activity activity)
 {
    //Do stuff

     return Json(flag, JsonRequestBehavior.AllowGet);
}

flag只是一个简单的类，它具有Error和Success字符串/布尔值，用于向用户显示结果。

public class Flag
{
    public bool Success { get; set; }//determine whether the call succeeded or not
    public string Error { get; set; }//show some detailed error message
}

然后在您的视图中显示以下ajax请求：

function serializeAndSendLoginForm() {
    var form = $("#logOnForm").serialize();
    $.ajax({
        url: '<%: Url.Action("LogOn","Account",new{area="Security"}) %>',
        type: 'POST',
        data: form,
        success: function (data) {
            if (data.Success) {
               //do more stuff
            } else {
              showDialog(data.Error);
            }

        },
        error: function () {
           alert("error");
        }
    });
}

加载对话框的功能：

function showDialog(message){
        var $dialog = $('<div></div>')
               .html(message)
               .dialog({
                   autoOpen: false,
                   modal: true,
                   height: 625,
                   width: 500,
                   title: "Login Result"
               });
        $dialog.dialog('open');
}

您可以使用某个容器类（而不是我的答案中的标志变量）从控制器向视图返回其他信息，并向用户显示其他错误详细信息。

MVC4：在控制器中发生错误时在JQuery Modal中显示错误

Edit.cshtml

1 个答案: