1.5. ASP.NET Web Forms in practice

This section uses the in-practice approach that we’ll use in the rest of the book. We’ll analyze every aspect of a topic using a problem-solution-discussion style. The first topic we’ll discuss in this way is how to handle PostBack in a Web Form. Because the foundation of ASP.NET is the same for all versions, we’ve designed this scenario to help you understand a common challenge that you can solve using any version of ASP.NET.

Technique 1: Handling PostBack

HTML forms consist of a series of input tags used to capture values when they’re submitted. ASP.NET uses PostBack to implement a mechanism that lets the developer handle this behavior easily. Mastering PostBack is important because the ASP.NET model is based on this concept.