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Chapter 20. Building Reusable Components > Writing Custom Tags That Display Inf...

Writing Custom Tags That Display Information

Now that you understand how to use existing custom tags, it's time to learn how to write your own. This section introduces you to the basic concepts involved in creating a custom tag. As you will soon see, it's an easy and productive way to write your code. And it's fun, too!

Writing Your First Custom Tag

It's traditional to illustrate a new language or technique with a “Hello, World” example. Listing 20.3 shows a custom tag that outputs a Hello, World message in the current Web page, formatted with ordinary HTML table syntax.


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