1. Spicing Up Web Parts Randy Williams SharePoint Hawaii User Group May 11, 2011

2. About the Speaker US-West Coast Manager for Synergy – Based in San Diego, California Consultant/Trainer/Author SharePoint MVP Specialty in architecting solutions Blog: www.synergyonline.com/randy Twitter: @tweetraw

3. Agenda AJAX Custom Web Services Client Object Model jQuery

4. How AJAX Works AJAX consists of JavaScript, DHTML and XMLHTTP XMLHTTPRequest object – Acts as a web service client – Used instead of a full postback Web server processes request and sends back response to browser Browser receives the response and updates the page dynamically

5. Using AJAX in SP2010 No configuration changes needed – Built into web.config – Built into v4.master Two primary ways – Using UpdatePanel control (basic) – Calling web services (advanced)

6. UpdatePanel Part of ASP.NET 3.5 Easiest way to add AJAX capability Most server-side events run as partial postbacks For SharePoint, use conditional mode up.UpdateMode = UpdatePanelUpdateMode.Conditional; Simple, but limited

7. USING UPDATE PANEL Demo

8. Calling Web Services Using AJAX, the browser can directly call into Web Services More powerful than UpdatePanel JSON is used to encode messages AJAX engine does most of the hard work Depending on the method used, OOB Web Services will not work – Custom ones can be used

9. Creating Custom Web Services Create new WCF Service App project Write web service Configure a web.config for web service – Dynamic bindings will not work with AJAX – enableWebScript endpoint behavior – allows it to be called from AJAX client Deploy within 14\ISAPI

10. USING AJAX TO CALL CUSTOM WEB SERVICE Demo

11. Client Object Model Working with SharePoint from client applications – ECMAScript (JavaScript) – Silverlight –.NET Managed Easier than calling web services directly Provides a subset of the functionality available in the server object model Designed to work with data within a site collection

12. The ClientContext Object ClientContext is your handle to all other objects – Site, Web, List, Item, File Optimizes communication to server by batching requests Typical usage: – Define a query to retrieve or modify SharePoint objects – Pass the query to one of the ClientContext’s Load methods – Use ClientContext to execute the query – Work with results returned

13. CLIENT OM FROM SILVERLIGHT WEB PART Demo

14. Using jQuery Multi-purpose JavaScript library With it, you will write less JavaScript Cross-browser support Create interactive and usable apps No need to deploy assemblies Works great in sandboxed web parts Hundreds of jQuery plugins

15. Where to Store these.js Libraries? Deploy as a module-type feature – Works in both farm and sandboxed WSP Copy manually to designed libraries – e.g. SiteAssets Shared or individual instances? Best to not rename file – e.g. keep as jquery-1.5.1.js

16. USING JQUERY Demo

17. Using SPServices Two primary functions – Allows jQuery to easily call SharePoint OOB web services – ListFormWebPart enhancements Download from http://spservices.codeplex.com/ Use when Client OM is insufficient

18. USING JQUERY AND SPSERVICES Demo

19. QUESTIONS?