我有一个用于生成列表的 ViewData，在选择一个项目后，项目信息将显示在文本框中以供查看和编辑。单击保存按钮后，它会保存但列表框未更新，由于我使用的是视图数据，如何更新此列表框？
@Html.ListBox("ListBoxName", new SelectList((IEnumerable<Epic>)ViewData["selectedestimate"], "Id", "Name", "EstimatedTime"), new {@class = "ListBoxClass", @style = "height: 325px;"})
<button id="EpicSaveId" type="submit" class="btn" onclick="SaveEpicInfo((document.getElementById('EpicNameID').value), (document.getElementById('EpicTimeId').value), (document.getElementById('EpicDescriptionID').value))">
单击保存按钮后：（Javascript）
function SaveEpicInfo(name, time, description) {
$.get('@Url.Action("SaveEditEpic", "Estimate")', { id: eid, epicname: name, epictime: time, epicdescription: description }, function (result) {
alert(result);
});
}
控制器：
[AcceptVerbs(HttpVerbs.Get)]
public JsonResult SaveEditEpic(int id, string epicname, double epictime, string epicdescription)
{
var epic = epicRepository.Select().SingleOrDefault(x => x.Id.Equals(id));
if (epic != null)
{
epic.Name = epicname;
epic.EstimatedTime = epictime;
epic.EpicDescription = epicdescription;
//ViewData["selectedestimate"] = epicRepository.Select().Where(x => x.EstimateId.Equals(ActiveEstimateId)).ToList();
return Json("Epic Saved", JsonRequestBehavior.AllowGet);
}
else
{
return Json("Error");
}
}