Beginning ASP.NET 3.5 in C# 2008: From Novice to Professional, Second Edition

4.5. Writing Code

Many of Visual Studio's most welcome enhancements appear when you start to write the code that supports your user interface. To start coding, you need to switch to the code-behind view. To switch back and forth, you can use two View Code or View Designer buttons, which appear just above the Solution Explorer window. Another approach that works just as well is to double-click either the .aspx page in the Solution Explorer (to get to the designer) or the .aspx.cs page (to get to the code view). The "code" in question is the VB C# code, not the HTML markup in the .aspx file.

4.5.1. The Code-Behind Class

When you switch to code view, you'll see the page class for your web page. For example, if you've created a web page named SimplePage.aspx, ...