Ajax　in ASP.NET

Posted by & filed under Ajax, ASP.NET.

リンク: Ajax.NET Professional Examples.

Microsoft.NET Framework 2.0

Below you will find some example web pages that are using Ajax.NET to get rid of the postback in typical ASP.NET applications:

I added a Quick Guide to get the first Ajax.NET method running.

THE LIBRARY IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,

 WITHOUT LIMITATION, WARRANTIES THAT THE LIBRARY IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR

 PURPOSE OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE LIBRARY IS WITH YOU.

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Download the latest version 5.11.4.2 including this example for .NET 1.1 (C#) and 2.0 (C#/VB.NET).

The .NET Framework 1.1 example can be found here.

To contact me use the contact form on my blog. If you have questions or found a bug please write to the Google group Ajax.NET Professional.

My postal address is:
Michael Schwarz
Meisenweg 2
90547 Stein, Germany

jax.NET – The free library for .NET (C#)

リンク: Ajax.NET – The free library for .NET (C#).

リンク: MagicAjax.NET Features.
MagicAjax Features

Easy integration

  • Just a few lines in web.config are enough to have MagicAjax working with default configuration options
  • Only one easy to use control (AjaxPanel) is required to be included in your
    page to enable the AJAX functionality

Usability

  • You put the part of your page that you want to have AJAX functionality inside
    an AjaxPanel and that's it; the MagicAjax framework takes care all of the
    intrinsic details for you
  • The AjaxPanel works like the ASP.NET Panel and can display its contents on the
    Visual Studio Designer, allowing you to add controls to it visually
  • No javascript code is needed to be written

Programming

  • For most cases you can add AJAX functionality to your existing pages by only
    adding AjaxPanels and without even a single change in the source code
  • MagicAjax replaces PostBacks with AJAX callbacks (AjaxCalls) that do not cause
    a refresh on the client's browser
  • The PostBack and AJAX functionality can co-exist in the same page; only the
    controls that are inside an AjaxPanel will perform an AjaxCall instead of a
    PostBack
  • The page's ViewState is shared amongst PostBacks and AjaxCalls; any changes to
    it by an AjaxCall will be available to a PostBack and vice versa
  • You handle an AjaxCall just like a PostBack, using the ASP.NET server-side
    programming model
  • MagicAjax intuitively spots the changes that occured during an AjaxCall and
    sends the minimum possible required javascript that will reflect the changes on
    the client's browser
  • There are plenty of helper methods to help you with handling an AjaxCall by
    code (i.e. if you want to send additional custom javascript to the client)

User experience

  • The user of your page enjoys a faster and richer browser UI, without the
    annoying PostBacks
  • A 'Loading' label notifies the user that an AjaxCall has been invoked
  • Instead of downloading the whole page for a Postback, the client only downloads
    chunks of javascript code that apply the changes made to the page's html
  • MagicAjax's changes to the page are kept in the browser's cache, so if the user
    navigates to another page and then presses the browser's 'Back' button, he will
    see the same page that he was viewing before

Customization

  • Many configuration options give you total control of the inner workings of
    MagicAjax
  • A small set of attributes applied to your ASP.NET controls can customize the
    way that they will be handled by MagicAjax
  • You can define that an AjaxCall will be invoked asynchronously or synchronously
    for all controls of an AjaxPanel or for a single control
  • You can define that certain controls of an AjaxPanel will invoke a
    plain PostBack
  • If the 'tracing' configuration option is enabled, a popup window is created
    that displays information about the data that were sent to and from the server,
    allowing you to monitor the traffic of AjaxCalls that the page invokes
  • Clean object-oriented design makes it easy to extend the framework and add your
    own AjaxControls

Compatibility

  • Currently only IE and Firefox browsers are supported but other browsers will
    get supported in the future
  • If a browser is not supported or the user has disabled javascript, the page
    will revert to plain PostBacks automatically

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