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22.3 Visual Studio .NET和数据访问
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22.3 Visual Studio .NET和数据访问
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<div style='float:left;width:49%'>·<a href='100165624.htm'>22.2 数据绑定</a></div><div style='float:right;width:49%'>·<a href='100165625.htm'>22.2.1 简单的绑定</a></div><div style='float:left;width:49%'>·<a href='100165626.htm'>22.2.2 数据绑定对象</a></div><div style='float:right;width:49%'>·<a href='100165628.htm'>22.3.1 创建一个连接</a></div><div style='float:left;width:49%'>·<a href='100165629.htm'>22.3.2 选择数据</a></div><div style='float:right;width:49%'>·<a href='100165630.htm'>22.3.3 生成DataSet</a></div></div>
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<link href="css.css" rel="stylesheet" type="text/css" /><h3 style="MARGIN-TOP: 11.4pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FTEL: 11.4pt"><a ftel="_Toc507815186"><span lang="EN-US">22.3 Visual Studio .NET</span></a><span style="FONT-FAMILY: 楷体_GB2312">和数据访问</span></h3>
<p class="MsoNormal"><a ftel="VisualStudio"><span style="FONT-FAMILY: 宋体">本节讨论</span><span lang="EN-US">Visual Studio .NET</span></a><span style="FONT-FAMILY: 宋体">把数据集成到</span><span lang="EN-US">GUI</span><span style="FONT-FAMILY: 宋体">中的一些新方式，具体地说，就是讨论如何创建一个连接，选择一些数据，生成一个</span><span lang="EN-US">DataSet</span><span style="FONT-FAMILY: 宋体">，再使用生成的所有对象创建一个简单的应用程序。</span><span lang="EN-US">Visual Studio .NET</span><span style="FONT-FAMILY: 宋体">提供的工具可以使用</span><span lang="EN-US">OleDbConnection</span><span style="FONT-FAMILY: 宋体">或</span><span lang="EN-US">SqlConnection</span><span style="FONT-FAMILY: 宋体">类创建一个数据库连接，使用哪个类取决于要连接的数据库类型。定义了一个连接后，就可以创建一个</span><span lang="EN-US">DataSet</span><span style="FONT-FAMILY: 宋体">，在</span><span lang="EN-US">Visual Studio .NET</span><span style="FONT-FAMILY: 宋体">中给它填充数据，这会为</span><span lang="EN-US">DataSet</span><span style="FONT-FAMILY: 宋体">生成一个</span><span lang="EN-US">XSD</span><span style="FONT-FAMILY: 宋体">文件</span><span lang="EN-US">(</span><span style="FONT-FAMILY: 宋体">类似于第</span><span lang="EN-US">21</span><span style="FONT-FAMILY: 宋体">章手工创建的文件</span><span lang="EN-US">)</span><span style="FONT-FAMILY: 宋体">和</span><span lang="EN-US">.cs</span><span style="FONT-FAMILY: 宋体">代码，最终会创建一个类型安全的</span><span lang="EN-US">DataSet</span><span style="FONT-FAMILY: 宋体">。</span></p></div>
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<div style='float:left;width:49%'>·<a href='100165624.htm'>22.2 数据绑定</a></div><div style='float:right;width:49%'>·<a href='100165625.htm'>22.2.1 简单的绑定</a></div><div style='float:left;width:49%'>·<a href='100165626.htm'>22.2.2 数据绑定对象</a></div><div style='float:right;width:49%'>·<a href='100165628.htm'>22.3.1 创建一个连接</a></div><div style='float:left;width:49%'>·<a href='100165629.htm'>22.3.2 选择数据</a></div><div style='float:right;width:49%'>·<a href='100165630.htm'>22.3.3 生成DataSet</a></div></div>
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