我遇到了部分视图的问题。我有一个公告的索引视图,我正在尝试添加一个部分视图以在同一页面内创建一个新的公告。
我可以显示部分视图,并提交表单以创建新记录。记录被提交到数据库中,但是在重新渲染页面时,出现错误:执行处理程序'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'的子请求时出错,{“不允许子操作执行重定向操作."} 在我的索引页中的 Html.Action 语句中。
我一直在努力完成这项工作,首先将 Html.Partial 更改为 Html.Action 语句,因为控制器方法没有触发,其次,在我读到这个错误是因为在渲染页面时,. NET 不知道我的重定向操作在做什么,因此会自动停止它,尝试在代码块内将 Html.Action 更改为 Html.RedirectAction,但仍然得到上面详述的相同错误。
我的模型很简单:
public class Announcement
{
public Announcement()
{
AnnouncementDate = System.DateTime.Now;
}
[Key]
public int AnnouncementID { get; set; }
public string Title { get; set; }
public string Type { get; set; }
}
我的控制器方法:
public ViewResult Index(string searchString, int? page)
{
var Announcements = from a in db.Announcements
select a;
if (!String.IsNullOrEmpty(searchString))
{
Announcements = Announcements.Where(s => (s.Title.ToUpper().Contains(searchString.ToUpper()) || s.AnnouncementText.ToUpper().Contains(searchString.ToUpper())));
}
Announcements = Announcements.OrderBy(s => s.Title);
int pageSize = 10;
int pageNumber = (page ?? 1);
return View(Announcements.ToPagedList(pageNumber, pageSize));
}
//
// GET: /Announcement/Create
public ActionResult Create()
{
Announcement announcement = new Announcement();
return PartialView(announcement);
}
//
// POST: /Announcement/Create
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(Announcement announcement)
{
if (ModelState.IsValid)
{
db.Announcements.Add(announcement);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(announcement);
}
索引.cshtml
@model PagedList.IPagedList<Project.Models.Announcement>
@using PagedList.Mvc;
@using PagedList;
@using (Html.BeginForm())
{
@Html.TextBox("SearchString", ViewBag.CurrentFilter as string, new { @class = "search-query", placeholder = "Search by name" })
<input type="submit" value="Search" class="btn" />
}
@item.Title
@item.Type
@Html.Action("Create"); // This is the line causing errors after I submit the Create form. Have tried changing to Html.RedirectAction
创建.cshtml:
@model Project.Models.Announcement
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.TextBoxFor(model => model.Title, new { @style = "width:250px" })
@Html.TextBoxFor(model => model.Type, new { @style = "width:250px" })
<input type="submit" value="Create" class="btn btn-small" />
}