Are there Usability Issues with AJAX?

Are there Usability Issues with AJAX?

Usability Issues:

a. User Exceptions
b. Response time
c. Design Issues
d. Accessibility

Are there Usability Issues with AJAX?

The nature of updating a page dynamically using data retrieved via AJAX interactions and DHTML may result in drastically changing the appearance and state of a page.

Since the pages get updated dynamically, the state of a page may not remain the same.

So the behavior of a page may need to be defined in each of the following user actions:

- Navigation using the back or forward buttons of the browser
- Book-marking a page
- Sharing a URL
- Printing a page at any given time

The output of the user actions like a page refresh, forward or back navigation, etc need to be defined.
In this case using a JavaScript framework such as Dojo that provides API's history manipulation and navigation control would be simpler.

Book-marking and URL sharing:
Dojo provides client-side interface for book-marking and URL manipulation.

Issues could arise while printing dynamically rendered pages.
Explain ASP.NET Ajax Framework
Explain ASP.NET Ajax Framework - ASP.NET Ajax framework is an open source javascript library to build AJAX enabled web applications.
Limitations of Ajax
Limitations of Ajax - Back functionality cannot work because the dynamic pages don’t register themselves to the browsers history engine.
What is the role of Script Manager in Ajax?
What is the role of Script Manager in Ajax? The ScriptManager controls client script for ASP.NET AJAX pages. It also registers the script for the AJAX Library.
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