ajax controls in .net

• ScriptManager
  • generates client-side script for ASP.NET AJAX
  • JavaScript proxy classes for calling web services
  • JavaScript classes for utilizing ASP.NET AJAX authentication and profile services
  • Partial page rendering
    • Allows different 'regions' of your page to postback
    • ScriptManager acts as a broker between your page, its regions
      • divided up with UpdatePanel controls
• ScriptManagerProxy
  • used within a master page
    • susequent pages using the master page will have their own ScriptManager
• Timer
  • defined interval
    • synchronous or asynchronous postback
    • XMLHttpRequest post back (no page reload)
    • typically used with an UpdatePanel
• UpdatePanel
  • defined specific regions to be updated
    • used with ScrptManager to enable partial page rendering
    • XMLHttpRequest post back (no page reload)
    • typically used with an UpdatePanel
• UpdateProgress
  • gives visual progress feedback while XMLHttpRequest is running