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        30.4  读写注册表
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                        30.4  读写注册表
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                    2006-10-13 14:41:00
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                        <div style='float:left;width:49%'>·<a href='100165771.htm'>30.3.1  流</a></div><div style='float:right;width:49%'>·<a href='100165772.htm'>30.3.2  读写二进制文件</a></div><div style='float:left;width:49%'>·<a href='100165773.htm'>30.3.3  读写文本文件</a></div><div style='float:right;width:49%'>·<a href='100165775.htm'>30.4.1  注册表</a></div><div style='float:left;width:49%'>·<a href='100165776.htm'>30.4.2  .NET注册表类</a></div><div style='float:right;width:49%'>·<a href='100165777.htm'>30.4.3  SelfPlacingWindow示例</a></div></div>
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                <div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style='margin-top:11.4pt;margin-right:0cm;FTEL:11.4pt;margin-left:
0cm'><a FTEL="_Toc507815214"><span lang=EN-US>30.4 &nbsp;</span></a><span
style='font-family:楷体_GB2312'>读写注册表</span></h3>

<p class=MsoNormal><span style='font-family:宋体'>自</span><span lang=EN-US>Windows
95</span><span style='font-family:宋体'>以来的所有</span><span lang=EN-US>Windows</span><span
style='font-family:宋体'>版本中,注册表是包含</span><span lang=EN-US>Windows</span><span
style='font-family:宋体'>安装、用户喜好、以及已安装软件和设备的所有配置信息的核心存储库。目前,几乎所有的商用软件都使用注册表来存储这些信息,</span><span
lang=EN-US>COM</span><span style='font-family:宋体'>组件必须把它的信息存储在注册表中,才能由客户程序调用。</span><span
lang=EN-US>.NET Framework</span><span style='font-family:宋体'>及其</span><span
lang=EN-US>0</span><span style='font-family:宋体'>压缩安装概念略微减弱了注册表的重要性,因为程序集是完全自包含的,所以程序集的信息不需要放在注册表中,即使是共享程序集也是这样。另外,</span><span
lang=EN-US>.NET Framework</span><span style='font-family:宋体'>引入了独立存储的概念,通过它应用程序可以在文件中存储专用于每个用户的信息,</span><span
lang=EN-US>.NET Framework</span><span style='font-family:宋体'>将确保为每个在机器上注册的用户单独存储数据。</span><span
lang=EN-US>(</span><span style='font-family:宋体'>独立存储超出了本书的范围,但如果您对此感兴趣,可以在</span><span
class=codeintext-PRODUCTION><span lang=EN-US style='font-family:"Times New Roman"'>System.IO.IsolatedStorage</span></span><span
class=codeintext-PRODUCTION><span style='font-family:宋体'>命名空间中找到相关的</span></span><span
class=codeintext-PRODUCTION><span lang=EN-US style='font-family:"Times New Roman"'>.NET</span></span><span
class=codeintext-PRODUCTION><span style='font-family:宋体'>基类。</span><span
lang=EN-US>)</span></span></p>

<p class=MsoNormal><span style='font-family:宋体'>应用程序现在使用</span><span
lang=EN-US>Windows Installer</span><span style='font-family:宋体'>来安装,开发人员不再需要直接操作注册表来安装应用程序了。但是,如果发布完整的应用程序,应用程序也要使用注册表来保存配置信息。如果应用程序要显示在控制面板的</span><span
lang=EN-US>Add/Remove Programs</span><span style='font-family:宋体'>对话框中,仍需要使用相应的注册表项目。还需要使用注册表处理与原有代码的向后兼容性。</span></p>

<p class=MsoNormal><span style='font-family:宋体'>注册表的库和</span><span lang=EN-US>.NET</span><span
style='font-family:宋体'>库一样复杂,它包括访问注册表的类。其中有两个类涉及到注册表,即</span><span lang=EN-US>Registry
</span><span style='font-family:宋体'>和</span><span lang=EN-US>RegistryKey</span><span
style='font-family:宋体'>,这两个类都在</span><span lang=EN-US>Microsoft.Win32</span><span
style='font-family:宋体'>命名空间中。在介绍这两个类前,先简要介绍一下注册表本身的结构。</span></p>

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                        <div style='float:left;width:49%'>·<a href='100165771.htm'>30.3.1  流</a></div><div style='float:right;width:49%'>·<a href='100165772.htm'>30.3.2  读写二进制文件</a></div><div style='float:left;width:49%'>·<a href='100165773.htm'>30.3.3  读写文本文件</a></div><div style='float:right;width:49%'>·<a href='100165775.htm'>30.4.1  注册表</a></div><div style='float:left;width:49%'>·<a href='100165776.htm'>30.4.2  .NET注册表类</a></div><div style='float:right;width:49%'>·<a href='100165777.htm'>30.4.3  SelfPlacingWindow示例</a></div></div>
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