January 2009
Intermediate to advanced
549 pages
12h 59m
English
book
Professional Microsoft® SharePoint® Designer 2007
by Woody Windischman, Bryan Phillips, Asif Rehmani
Content preview from Professional Microsoft® SharePoint® Designer 2007
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14.1. What Is the Web Part Page Services Component?
A SharePoint Web Part Page is a complicated beast. It must support the loading and display of components from a variety of sources. In addition, it must be able to adapt to the changes as users add and remove Web Parts (and connections between them) at run time. Coordinating all of this is the job of the Web Part Page Services Component (WPSC).
In code, the component's object ID is WPSC. The rest of this chapter uses WPSC for all references to the component in the text as well.
The functions of the WPSC fall into two general categories:
Page initialization
Page services
14.1.1. Page Initialization
SharePoint detects which browser is being used, and takes slightly different actions based on what it finds. A variety of JavaScript objects, typically including the WPSC, are instantiated at run time by including the file IE50UP.JS, IE55UP.JS, or NON_IE.JS, depending upon what functions the user's browser supports.
As implied by their titles, IE55UP.JS is used for IE 5.5 or higher browsers, while IE50UP.JS is used for down-level versions of IE, and NON_IE.JS is for other browsers. This allows calls made to the WPSC to degrade gracefully on older versions of Internet Explorer. The WPSC is not implemented in NONIE.JS. As always, test your code on multiple browsers.
As a Web Part Page loads, the WPSC receives information about the Web Parts on the page, and performs various housekeeping tasks. Among other things, the WPSC is responsible ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.