Building Dynamic Applications with the SharePoint Client Object Model Visual Studio Connections Building Dynamic Applications with the SharePoint Client Object Model Eric Shupps SharePoint Server MVP Updates will be available at http://www.devconnections.com/updates/LasVegas_Fall08/VS

About Me SharePoint Server MVP President, BinaryWave Microsoft Patterns & Practices (spg.codeplex.com) CKS:DEV (cksdev.codeplex.com) Web: www.binarywave.com Blog: www.sharepointcowboy.com Twitter: @eshupps Facebook: www.facebook.com/sharepointcowboy

“This session is a hunky dory jolly good awesomeness thingy” Agenda Introduction to the Client Object Model .NET Client Object Model Silverlight and Client Object Model JavaScript and Client Object Model Demo Building a WPF Client Application with SharePoint Data “This session is a hunky dory jolly good awesomeness thingy” - Tobias Zimmergren

Legacy Data Access SharePoint Data Server Application SharePoint API Web Service Client Application

Client Object Model Consistent Efficient SharePoint Data Sort Of Somewhat Consistent Efficient Client Application .Net CLR Silverlight JavaScript

Accessing Data with Client OM Browser JavaScript Controls Client Service Server Object Model JavaScript OM Proxy Proxy Managed OM Content Database Managed Controls Client Server

Equivalent Objects Server (Microsoft .SharePoint) .NET Managed (Microsoft.SharePoint .Client) Silverlight (Microsoft.SharePoint .Client.Silverlight) JavaScript (SP.js) SPContext ClientContext SPSite Site SPWeb Web SPList List SPListItem ListItem SPField Field 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

Getting Started: 3 things to know ClientContext is the central object Before you read a property, you have to ask for it All requests must be committed in a batch clientContext = new ClientContext(“http://mysite”); clientContext.Load(list); clientContext.ExecuteQuery();

High level handling of commands Client Application Server Sequence of commands: Client.svc command 1; command 2; command 3; Execute commands in the batch: XML context.ExecuteQuery(); command 1; command 2; command 3; JSON Process results Send results back

Client Object Model Limitations You must handle synch/update semantics in code No elevation of privilege capabilities Requests are throttled .net CLR has sync method; Silverlight CLR and Jscript are async Limited subset of Server OM functionality You only get what you ask for – nothing more (but sometimes less)

.Net CLR Client OM Provides easy access from remote .NET clients to manipulate SharePoint data Can be utilized from managed code – also from office clients etc. Assemblies Microsoft.SharePoint.Client.dll (281kb) Microsoft.SharePoint.Client.Runtime.dll (145kb) To Compare: Microsoft.SharePoint.dll – 15.3MB

DEMO Building a .NET Client OM Application Using SharePoint Data

Silverlight in SharePoint 2010 Native Silverlight web part allows for compilation and deployment of XAP-only solutions One-click deployment from Visual Studio 2010 Web Parts can contain custom properties that are sent to Silverlight via the InitParams property Abstracted visual design in Expression (make the designer do it!)

Silverlight CLR Client OM Use the correct references: C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions \14\TEMPLATE\LAYOUTS\ClientBin Microsoft.SharePoint.Client.Silverlight 262KB Microsoft.SharePoint.Client.Silverlight.Runtime 138KB

Silverlight Client OM

Building and Deploying Silverlight Built in support in Visual Studio 2010 Redirect assembly output into Module F5 deploy and debug experience SharePoint WSP Visual Studio builds WSP package on F5 Module XAP Deploy as Module

DEMO Building a Silverlight Client OM Application Using SharePoint Data

JavaScript Client OM Provides similar functionality to .NET/Silverlight COM from JavaScript/ECMAScript Identical structure Initialize Context -> Specify Items -> Load Objects -> Execute Query Limited to current site context (no cross-site scripting) Asynchronous (like Silverlight) Be aware of syntax changes get_web() get_lists() get_item()

DEMO Building a Javascript Client OM Application Using SharePoint Data

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