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28.4.9 在Internet Explorer中运行Windows窗体控件
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C#高级编程（第3版）【全文连载】
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28.4.9 在Internet Explorer中运行Windows窗体控件
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2006-10-13 14:41:00
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<h1 id="divCurrentNode" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165737.htm'><font color='red'>28.4.9 在Internet Explorer中运行Windows窗体控件</font></a></h1>
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<div style='float:left;width:49%'>·<a href='100165734.htm'>28.4.6 创建COM客户程序</a></div><div style='float:right;width:49%'>·<a href='100165735.htm'>28.4.7 添加连接点</a></div><div style='float:left;width:49%'>·<a href='100165736.htm'>28.4.8 用sink对象创建客户</a></div><div style='float:right;width:49%'>·<a href='100165738.htm'>28.5 小结</a></div><div style='float:left;width:49%'>·<a href='100165739.htm'>29.1 概述</a></div><div style='float:right;width:49%'>·<a href='100165740.htm'>29.1.1 Enterprise Services简史</a></div></div>
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<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style='margin-top:8.15pt;margin-right:0cm;FTEL:8.15pt;margin-left:
0cm'><span lang=EN-US>28.4.9 </span><span style='font-family:黑体'>在</span><span
lang=EN-US>Internet Explorer</span><span style='font-family:黑体'>中运行</span><span
lang=EN-US>Windows</span><span style='font-family:黑体'>窗体控件</span></h3>
<p class=MsoNormal><span lang=EN-US>Windows</span><span style='font-family:
宋体'>窗体控件在</span><span lang=EN-US>Internet Explorer</span><span
style='font-family:宋体'>中可以用作</span><span lang=EN-US>ActiveX</span><span
style='font-family:宋体'>控件。因为有许多不同的</span><span lang=EN-US>ActiveX</span><span
style='font-family:宋体'>控件容器，所有这些容器对</span><span lang=EN-US>ActiveX</span><span
style='font-family:宋体'>控件有不同的要求，所以</span><span lang=EN-US>Microsoft</span><span
style='font-family:宋体'>不支持在任何容器中包含</span><span lang=EN-US>Windows</span><span
style='font-family:宋体'>窗体控件。</span><span lang=EN-US>VS.NET 2003</span><span
style='font-family:宋体'>用</span><span lang=EN-US>MFC</span><span
style='font-family:宋体'>应用程序添加了一个支持的容器。但是，必须手工修改代码，以包含</span><span lang=EN-US>MFC</span><span
style='font-family:宋体'>应用程序中的</span><span lang=EN-US>ActiveX</span><span
style='font-family:宋体'>控件。</span></p>
<p class=MsoNormal><span style='font-family:宋体'>要在</span><span lang=EN-US>Internet
Explorer</span><span style='font-family:宋体'>中包含</span><span lang=EN-US>Windows</span><span
style='font-family:宋体'>窗体控件，必须把程序集文件复制到</span><span lang=EN-US>Web</span><span
style='font-family:宋体'>服务器上，在</span><span lang=EN-US>HTML</span><span
style='font-family:宋体'>页面上添加一些该控件的信息。为了支持</span><span lang=EN-US>Windows</span><span
style='font-family:宋体'>窗体控件，应扩展</span><span lang=EN-US><object></span><span
style='font-family:宋体'>标记语法。使用特性</span><span lang=EN-US>classid</span><span
style='font-family:宋体'>，可以添加程序集文件和类名，它们用符号</span><span lang=EN-US>#</span><span
style='font-family:宋体'>分隔开：</span><span lang=EN-US>classid="<assembly
file>#class name"</span><span style='font-family:宋体'>。</span></p>
<p class=MsoNormal><span style='font-family:宋体'>对于程序集文件</span><span lang=EN-US>ControlDemo.dll</span><span
style='font-family:宋体'>和命名空间</span><span lang=EN-US>Wrxo.ProCSharp.COMInterop</span><span
style='font-family:宋体'>中的类</span><span lang=EN-US>UserControl1</span><span
style='font-family:宋体'>，语法如下所示：</span></p>
<p class=2 style='margin-top:8.15pt;margin-right:0cm;FTEL:0cm;
margin-left:21.45pt;FTEL:.0001pt;FTEL:18.45pt'><span
lang=EN-US><object id="myControl"</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
classid = "ControlDemo.dll#Wrox.ProCSharp.COMInterop.UserControl1"</span></p>
<p class=2 style='margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US>
height="400" width="400"></span></p>
<p class=2 style='margin-top:0cm;margin-right:0cm;FTEL:8.15pt;
margin-left:21.45pt;FTEL:18.45pt'><span lang=EN-US></object></span></p>
<p class=MsoNormal><span style='font-family:宋体'>只要用户打开了</span><span lang=EN-US>HTML</span><span
style='font-family:宋体'>页面，程序集就会下载到客户系统中。程序集存储在下载的程序集缓存中，每次用户访问页面时，都会重新检查版本号。如果版本号没有改变，就使用本地缓存中的程序集。</span></p>
<p class=a2 style='margin-top:8.15pt;FTEL:21.45pt'><span
style='font-family:黑体'>提示：</span></p>
<p align=center style='FTEL:8.15pt;FTEL:21.45pt'><span
style='font-family:楷体_GB2312'>要在</span><span lang=EN-US>Web</span><span
style='font-family:楷体_GB2312'>页面中使用</span><span lang=EN-US>Windows</span><span
style='font-family:楷体_GB2312'>窗体控件，客户必须安装了</span><span lang=EN-US>.NET</span><span
style='font-family:楷体_GB2312'>运行库，必须使用</span><span lang=EN-US>Internet Explorer
5.5</span><span style='font-family:楷体_GB2312'>或更高版本，安全设置必须允许下载程序集。</span><span
lang=EN-US>.NET 1.1</span><span style='font-family:楷体_GB2312'>默认的安全设置不允许从</span><span
lang=EN-US>Internet</span><span style='font-family:楷体_GB2312'>上下载程序集。</span></p>
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<div style='float:left;width:49%'>·<a href='100165734.htm'>28.4.6 创建COM客户程序</a></div><div style='float:right;width:49%'>·<a href='100165735.htm'>28.4.7 添加连接点</a></div><div style='float:left;width:49%'>·<a href='100165736.htm'>28.4.8 用sink对象创建客户</a></div><div style='float:right;width:49%'>·<a href='100165738.htm'>28.5 小结</a></div><div style='float:left;width:49%'>·<a href='100165739.htm'>29.1 概述</a></div><div style='float:right;width:49%'>·<a href='100165740.htm'>29.1.1 Enterprise Services简史</a></div></div>
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