11.9. Advanced Binding
By now you probably are excited about how easy the Microsoft AJAX libraries can make client-side data binding. The ASP.NET AJAX libraries also contain a number of other useful features that I will cover now:
Conditional rendering
Converters
Two-way data binding
Implementation of the Observer pattern
11.9.1. Conditional Rendering
Sometimes you will want to apply logic to the rendering of your content—perhaps in a medical application to highlight abnormal lab results. The ASP.NET AJAX libraries allow you to do this by embedding conditional logic within your markup.
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