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2010 - Developer look at the Client Object Model
This document summarizes a presentation about using the Client Object Model in SharePoint 2010 to access SharePoint data from client applications. It discusses the three versions of the Client Object Model for .NET, JavaScript, and Silverlight. Code examples are provided for adding items to a list using each technology. The limitations and advantages of each approach are also covered.
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2010 - Developer look at the Client Object Model
- 1. Melbourne October 2010 Developer lookat the Client Object Model Chris O’Connor Senior Consultant OBS www.sharepointroot.com @grumpywookie Hashtag : #spsmelbourne Sponsors
- 2. Melbourne October 2010 Agenda SharePoint API– from Client Applications • Windows Client (WinForm) • JavaScript (ASCX) • Silverlight Code examples + demo Questions & Answers
- 3. Melbourne October 2010 Remote Callsto SharePoint History – what we had for SharePoint 2007 Web Services eg. http://server/_vti_bin/Lists.asmx New – for SharePoint 2010 Client Object Model Cut-down version of SharePoint API Can still use Web Services (and JSON too) Overview
- 4. Melbourne October 2010 Client ObjectModel Three (!) versions of Client Object Model Wrappers for the SharePoint API (DLLs) Development + coding using : .NET CLR – C# and VB.NET Silverlight JavaScript (ECMAScript) SharePoint 2010
- 5. Melbourne October 2010 Client ObjectModel Site Collections and Sites Lists, List Items, Views, and List Schemas Files and Folders Web, List, and List Item Property Bags Web Parts Security Content Types Site Templates and Site Collection Operations Supported Areas
- 6. Melbourne October 2010 Client ObjectModel Syntax
- 7. Melbourne October 2010 Client.svc Server OM Content database JavaScript OM Proxy ManagedOM Proxy .NET CLR / Silverlight JavaScript Code XML Request XML Request JSON Response JSON Response Browser Managed Client SharePoint Server
- 8. Melbourne October 2010 Client ObjectModel Visual Studio 2010 SharePoint 2010 Example : News / Announcements Add to News List (ListItems) Retrieve & display items from the News List Demo
- 9. Melbourne October 2010 Client ObjectModel Windows Application (C#) Add references Microsoft.SharePoint.Client Microsoft.SharePoint.Client.Runtime Need to deploy these DLL’s with the app DEMO…> .NET CLR
- 10. Melbourne October 2010 Client ObjectModel Other Uses : Could do the same in a console app Or VSTO Add-in for Outlook Notes : Will run in security context of ‘user’ Sandboxed solutions Can do asynchronous call+delegate .NET CLR
- 11. Melbourne October 2010 Client ObjectModel Create ASCX Include JavaScript code in mark-up No code behind, or DLL (class) ASCX will then be hosted in Master Page DEMO…> JavaScript
- 12. Melbourne October 2010 Client ObjectModel Other Uses : Include jQuery Timer + animation – then call ‘next item’ Notes : <SharePoint:ScriptLink Name="SP.js" runat="server" OnDemand="true" Localizable="false" /> Optionally : SP.debug.js JavaScript
- 13. Melbourne October 2010 Client ObjectModel Limitations of JavaScript Can only be from SharePoint Not another site/URL – XSS Can’t use from a different SP Site either Light weight Sandboxed – code if not able to deploy DLL JavaScript
- 14. Melbourne October 2010 Client ObjectModel Runs within Silverlight (browser) Design surface – Canvas, Brush, StackPanel, etc C# code for SharePoint API Add DLLs from TEMPLATELAYOUTSClientBin Microsoft.SharePoint.Client.Silverlight Microsoft.SharePoint.Client.Silverlight.Runtime DEMO…> Silverlight
- 15. Melbourne October 2010 Client ObjectModel Other Uses : Highly customised & fluid user interfaces The sky is the limit Notes : Easy with XAP in Document Library Can be tricky with managing UI thread, etc Requires Silverlight on client PC (browser plug-in) Silverlight
- 16. Melbourne October 2010 Client ObjectModel Wrap-up – quick look at Client Object Model THREE different versions : .NET CLR JavaScript (ECMAScript) Silverlight Familiar developer experience (C#) SharePoint 2010
- 17. Melbourne October 2010 Question and Answer Questionand Answer Time Client Object Model
- 18. Melbourne October 2010 Related ContentContent+ Contact Slides + demo code (soon !) http://www.sharepointroot.com Twitter : @grumpywookie Email : chris@grumpywookie.com ** GIVEAWAY : MSDN Subscription (!!)
- 19. Melbourne October 2010 Thanks ForListening! Be sure to submit your feedback if you want to be in the draw to win the Xbox 360 and other prizes! Sponsors
Editor's Notes
- #4 SharePoint 2007 Web Services Some problems Lots of code XML + XSD pain Different to coding with the API SPSite, SPList, SPListItem, etc Limited functionality Performance The new way in SharePoint 2010 Client Object Model SharePoint API (DLLs) Cut-down version Akin to WPF<->Silverlight Runs on the client machine (eg. browser) But there’s more…
- #5 Sandboxed Solutions
- #6 Sandboxed Solutions
- #7 Show the various resources and their locations Server – Microsoft.SharePoint – [..]\14\ISAPI .NET – Microsoft.SharePoint.Client – [..]\14\ISAPI Silverlight – Microsoft.SharePoint.Client.Silverlight – [..]\14\LAYOUTS\ClientBin ECMAScript – SP.js - [..]\LAYOUTS
- #10 C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\ISAPI Microsoft.SharePoint.Client Microsoft.SharePoint.Client.Runtime //get server context - from URL ClientContext clientCtx = new ClientContext("http://spr:82"); //get web context - like SPWeb Web web = clientCtx.Web; clientCtx.Load(web); //have to exec query clientCtx.ExecuteQuery(); //get reference to list List list = web.Lists.GetByTitle("News"); //create a new list item ListItem listitem = list.AddItem(null); //add the meta data (properties) listitem["Title"] = textBox1.Text; listitem["Body"] = textBox2.Text; listitem["Expires"] = dateTimePicker1.Text; //update listitem listitem.Update(); //show message to user MessageBox.Show("Added News Item... ");
- #12 Need to add tags within SP – eg. ASCX or Master Page <SharePoint:ScriptLink Name="SP.js" runat="server" OnDemand="true" Localizable="false" /> OnDemand Or – can use SP.Debug.js Limitations of JavaScript Can only be from SharePoint Not another site/URL – XSS Can’t use from a different SP Site either Light weight Sandboxed – code if not able to deploy code
- #13 Add tags within SP – eg. ASCX or Master Page OnDemand SP.Debug.js