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AJAX

AJAX. MIS 3 24 Professor Sandvig. Today. What is AJAX Benefits & Uses Implementation Do-it-yourself Download API ASP.NET Ajax Summary. What is AJAX. Acronym A synchronous J avaScript A nd X ML What it is JavaScript in web page retrieves data from server

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AJAX

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  1. AJAX MIS 324 Professor Sandvig

  2. Today • What is AJAX • Benefits & Uses • Implementation • Do-it-yourself • Download API • ASP.NET Ajax • Summary

  3. What is AJAX • Acronym • Asynchronous JavaScript And XML • What it is • JavaScript in web page retrieves data from server • Allows partial page refresh • Reduces need to refresh entire page

  4. What is AJAX

  5. What is AJAX • Data format does not need to be XML • Depends upon use • Popular formats: • JSON • Text • XML • CSV • Custom

  6. Benefits & Uses • Benefits: • Richer experience for user • More like using desktop application • Uses • Google Suggest (JSON) • Kelly Blue Book (Cascading Menus) (JSON) • REI product image (image) (JSON) • Google Maps (blob) • Amazon (images) (JSON) • etc. etc.

  7. Implementation Options: • Do-it-yourself • Lightweight, flexible • write or modify JavaScript or jQuery • Use API • Google, Facebook, Amazon, …

  8. Do it yourself • Client • Include JavaScript or jQuery in web page • Requests data from server • Server • Web service provides data • Format: XML, JSON, HTML, …

  9. Do it Yourself Examples

  10. Use AJAX API • Ajax applications written by others • Google AJAX APIs • Search • Maps • Tree Tour • Facebook APIs • LazyLoad

  11. Summary • AJAX • Use to improve user experience • Partial page refreshes • Options: • Code you own • Use APIs • ASP.NET AJAX

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