Why do ASP.NET AJAX page methods have to be static?


	Why do ASP.NET AJAX page methods have to be static?

desmond54

5-5-2008 4:19 AM

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tags:

.net, asp.net

1 Comment |

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5-5-2008 8:32 AM

alanocu

That seems contradictory to the beauty of AJAX. I didn't think it was static, but maybe I'm not understanding the entire issue.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/511c1be3-c221-4cda-9912-3dfbdc4b881b/04B32F0F-E897-442E-8094-6817411272D9/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/" href="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/" style="font-size: 11px;">encosia.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/"><UL>
<li style="margin-left:16px;padding-left: 0px;">Understanding what the Page class is, and why we have it.</LI>
<li style="margin-left:16px;padding-left: 0px;">One specific thing that the Page class does for us.</LI>
<li style="margin-left:16px;padding-left: 0px;">How this is accomplished, behind the scenes.</LI>
<li style="margin-left:16px;padding-left: 0px;">What the static keyword entails, when used with a method.</LI>
<li style="margin-left:16px;padding-left: 0px;">Finally, why page methods must be static.</LI>
</UL></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/"><P>The Page brings a lot to the table.  However, to answer the question of why page methods must be static, we need to focus on <STRONG>persistence</STRONG>.  </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/encosia.com/img/62EEED83-8564-45AF-9308-985A0F283D2D" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/"><P>A static method is simply one that is disassociated from any instance of its containing class.  The more common alternative is an instance method, which is a method whose result is dependent on the state of a particular instance of the class it belongs to.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://encosia.com/2008/04/16/why-do-aspnet-ajax-page-methods-have-to-be-static/"><P>Page methods are roughly equivalent to shorthand for standalone web services.  In fact, the ScriptManager even calls them exactly as it would a regular web service.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/04B32F0F-E897-442E-8094-6817411272D9/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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