我有以下视图，其中创建10 ajax.beginform,但我面临的问题是，在创建对象期间发生错误，那么ModelState.AddModelError将不会显示在视图上，虽然我已设置@ Html.ValidationSummary(true)
视图如下
视图如下
@model Medical.Models.VisitLabResult
@for (int item = 0; item < 10; item++)
{
<tr id = @item>
@using (Ajax.BeginForm("CreateAll","VisitLabResult",new AjaxOptions
{
HttpMethod = "Post",UpdateTargetId = item.ToString() + "td",InsertionMode = InsertionMode.Replace,LoadingElementId = "progress2",OnSuccess = string.Format(
"disableform({0})",Json.Encode(item)),}))
{
@Html.ValidationSummary(true)
@Html.AntiForgeryToken()
<td>
@Html.DropDownList("LabTestID",String.Empty)
@Html.ValidationMessageFor(model => model.LabTestID)
</td>
<td>
@Html.EditorFor(model => model.Result)
@Html.ValidationMessageFor(model => model.Result)
</td>
<td>
@Html.EditorFor(model => model.DateTaken)
@Html.ValidationMessageFor(model => model.DateTaken)
</td>
<td>
@Html.EditorFor(model => model.Comment)
@Html.ValidationMessageFor(model => model.Comment)
</td>
<td>
<input type="submit" value="Create" />
</td>
<td id = @(item.ToString() + "td")>
</td>
}
</tr>
}
</table>
而我定义ModelState.AddModelError的action方法如下： –
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult CreateAll(VisitLabResult vlr,int visitid = 28)
{
try
{
if (ModelState.IsValid)
{
var v = repository.GetVisit(visitid);
if (!(v.EligableToStart(User.Identity.Name))){
return View("NotFound");
}
vlr.VisitID = visitid;
repository.AddVisitLabResult(vlr);
repository.Save();
return Content("Addedd Succsfully");
}
}
catch (DbUpdateException)
{
JsonRequestBehavior.AllowGet);
ModelState.AddModelError(string.Empty,"The Same test Type might have been already created,go back to the Visit page to see the avilalbe Lab Tests");
}
}
所以我可以在我的视图中显示ModelState.AddModelError。
解决方法
我会敦促你改变你的try {} catch(){}
并首先检查是否存在给定id的访问
并且如果这样简单地返回具有添加的模型误差的模型
if (visitExists)
{
ModelState.AddModelError("CustomError",go back to the Visit page to see the avilalbe Lab Tests");
return View(vlr);
}
//Other code here
将您的AddModelError更改为
ModelState.AddModelError("CustomError",go back to the Visit page to see the avilalbe Lab Tests");
在你看来简单地添加一个
@Html.ValidationMessage("CustomError")
