1
我們最近將ASP.NET Web應用程序從.NET 3.5遷移到4.0。Web用戶控件沒有智能感知（ascx）
遷移後，我們的Web用戶控件沒有智能感知，因此我們無法使用用戶控件在頁面中添加事件處理程序。
與新創建的用戶控件（我們將用戶控件拖放到頁面中）相同。
的Visual Studio 2012顯示以下編譯器警告：
Element 'TestWebUserControl1' is not a known element. This can occur if there is a compilation error in the Web site, or the web.config file is missing.
Web用戶控件：
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="TestWebUserControl1.ascx.cs" Inherits="sMatSupervisor.TestWebUserControl1" %>
using System;
namespace sMatSupervisor
{
public partial class TestWebUserControl1 : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
}
}
}
測試頁：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TestForm.aspx.cs" Inherits="sMatSupervisor.TestForm" %>
<%@ Register Src="~/TestWebUserControl1.ascx" TagPrefix="uc1" TagName="TestWebUserControl1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<uc1:TestWebUserControl1 runat="server" id="TestWebUserControl1" />
</div>
</form>
</body>
</html>
using System;
namespace sMatSupervisor
{
public partial class TestForm : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
}
}
Web.config文件：
<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<configSections>
</configSections>
<connectionStrings configSource="connections.config" />
<appSettings file="global.config">
</appSettings>
<system.web>
<compilation debug="true">
<assemblies>
<add assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System.ServiceModel.Activation, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System.Runtime.Serialization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
<add assembly="System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
<add assembly="System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Web.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
<add assembly="System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.ServiceModel.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System.Data.Services.Client, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Data.Services.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
</assemblies>
</compilation>
<pages>
<controls>
<add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" />
</controls>
</pages>
</system.web>
<system.webServer>
<httpRedirect enabled="false" />
</system.webServer>
</configuration>
發現僅使用系統命名空間的頁面和用戶控制？ – Izikon
是的，頁面只使用'System'命名空間。該頁面只是測試網頁用戶控件的測試頁面。 – user2910389