userControl＆＃34;名称＆＃39; InitializeControl＆＃39;在当前背景下不存在＆＃34;

Question

我的一些网页遭受了这种情况，因为我在ascx中使用了属于ascx.cs的对象

这是我的ascx.cs：

public AnnouncementDetailItem announcement = new AnnouncementDetailItem();
        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            InitializeControl();
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                string qry ="...";
                SPListItem spListItems = BaseSPList.GetItems(ListName, qry)[0];

                if (spListItems != null)
                {
                    announcement = new AnnouncementDetailItem() {
                        Title = spListItems.Fields["Title"].ToString(),
                        SubTitle = spListItems["SubTitle"].ToString(),
                        Content = spListItems["Content"].ToString(),
                        BroadcastDate = spListItems["BroadcastDate"].ToCustomDateTime(),
                    };
                }
            }
            catch (Exception ex)
            {
                CoreException.WriteToLog("Announcements WP", ex);
            }
        }

ascx页面（即使我删除了这些内容仍然会发生同样的错误）：我也分享了名称空间，如果它的原因导致了对不起。

   <%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %> 
<%@ Register TagPrefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="AnnouncementDetail.ascx.cs" Inherits="MaliyeWebPortal.WebParts.AnnouncementDetail.AnnouncementDetail" %>
<%@ Import Namespace="MaliyeCore.DTO" %>


   <% if(announcement != null){ %>
<div id="announcementsTabs">
    <ul class="nav nav-tabs" role="tablist">
       <li role="presentation" class="active"> <a role="tab" data-toggle="tab" href="#duyuru<%=announcement.ID%>"><%=announcement.Title %></a></li>
    </ul>
</div>



  <%   } %>

我该如何解决？