The actual class that represents an .aspx page in action is an instance of a class that derives from Page; hence, it can call into protected methods.
真正代表一个 .aspx 活动页面的类是从 Page 派生的一个类的实例；因此，它能够调入受保护的方法。
You can now set the new MetaKeywords and MetaDescription properties in the .aspx page and have their values automatically rendered by the control within the master page.
现在可以在.aspx页面中设定新的MetaKeywords和MetaDescription属性并通过母板页中的控件自动生成其值。
A custom renderer was out of the scope of our sample and we decided to use a simpler solution: a custom aspx page that could be used instead of the default ReportViewer.aspx for fixed layout reports.
使用自定义渲染器已经超出了我们的示例范围，我们决定使用更简单的解决方案：用一个自定义的aspx页面代替默认的ReportViewer . aspx来生成固定布局的报表。
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