Developing With Data Technologies

Developing With Data Technologies
Chakkaradeep Chandran
http://www.chakkaradeep.com
@chakkaradeep

Session Objectives and Takeaway
Session Objectives:
Explain SharePoint Data Technologies
Present the new List Platform Capabilities
Demonstrate how to interact with SharePoint data using:
LINQ to SharePoint
Client Object Model
.NET CLR
Silverlight CLR
JavaScript CLR
RESTful Data Service Interface
Takeaway:
Building applications using the various SharePoint 2020 Data Technologies

SharePoint 2010 for Developers
Visual Studio 2010
Install on Windows 7
SharePoint Designer 2010
Developer Dashboard
Developer Productivity
Business Connectivity Services
LINQ, REST and Data Improvements
Client Object Model
Silverlight Web Part
ECMAScript Object Model (JavaScript,JSCript)
Rich Platform Services
Team Foundation Server
Sandboxed Solutions
WSP Solution Upgrade
SharePoint Online
Flexible Deployment

Overview of Data Technologies
REST APIs
Client OM
Client Side
Data Platform
Server Side
Farm
Site
List Data
External Lists
LINQ
(spmetal.exe)
ServerOM

List Data Improvements in SharePoint 2010

Lists and Lookups
Lookup
Lookup
Projects
Employees
Clients
m
1
m
1
Lookups form relationships between lists
One-to-many
Many-to-many

List Relationships
Enforce Data Integrity
One-to-many relationships can be used to:
Trigger cascade delete
Restrict delete
Relationship behaviors (delete/restrict) are not supported on multi-value lookups

List Validation
Validation Formula can be specified on List and Columns
=[Column1]-[Column2]
=AND([Column1]>[Column2], [Column1]<[Column3])
=PRODUCT([Column1],[Column2],2)
=DATEDIF([Column1], [Column2],"d")
=CONCATENATE([Column2], ",", [Column1])

Large Lists
Set a limit for how many rows of data can be retrieved for a list or library at any one time:
List View Threshold
List View Threshold for Auditors and Administrators
List View Lookup Threshold
Daily Time Window for Large Queries
If enabled on the Web Application, developer can turn off throttling using:
SPQuery.RequestThrottleOverride
SPSiteDataQuery.RequestThrottleOverride

List View Threshold

List Data Model
Lookup to Multiple Columns
List Relationships
Related Items UI
List Validation

Summary : List Data Improvements
REST APIs
Client OM
Client Side
Data Platform
Server Side
Farm
Site
List Data
External Lists
LINQ
(spmetal.exe)
ServerOM

Server Object
Model

Building Server Applications
.aspx.cs
Server OM
SharePoint data
SharePoint data
Classes & Objects
SharePoint Site

Server Object Model Example Code
Using Microsoft.SharePoint;
List<Announcement> announcements = new List<Announcement>();
SPSitesite = SPContext.GetContext(HttpContext.Current).Site;
using (SPWebcurWeb = site.OpenWeb())
{
SPListlstAnnouncements =
curWeb.Lists[new Guid(LibraryName)];
//rest of the code
}

LINQ to SharePoint
(SPLinq)

LINQ to SharePoint
Entity based programming
Strong Types and Intellisense
Translates LINQ queries to CAML queries
Supports List Joins and Projections
Join lists on lookup field between them
Join multiple lists (A->B->C)
Project any field from joined list in a query without changes in list schema
Can be used in
Web Parts
Event Receivers
Sandboxed Code

LINQ to SharePoint Basics
spmetal.exe
SPLinq.cs
SPLinq.vb
spmetal/web:http://dataetch/code:SPLinq.cs
SharePoint Site
http://datatech
SPLinqDataContext
SPLinqDataContext dc = new SPLinqDataContext (“http://datatech”);
var q=dc.Employees.Where(emp=>emp.DueDate < DateTime.Now.AddMonths(6));
from o in data.Orderswhere o.Customer.City.Name == “San Francisco“select o;

SPMetal Options

LINQ to SharePoint

SPMetal – Default Code Generation Rules
spmetal.exe
SPLinqDataContext
Project
Projects
Class
Property
GetProjects

SPMetal Parameters XML File
SPMetal does not require a parameters XML file
To include or exclude a different set of lists and columns from the default
<?xmlversion="1.0" encoding="utf-8"?>
<WebAccessModifier="Internal" xmlns="http://schemas.microsoft.com/SharePoint/2009/spmetal">
<ContentTypeName="Contact" Class="Contact">
<ColumnName="ContId" Member="ContactId" />
<ColumnName="ContactName" Member="ContactName1" />
<ColumnName="Category" Member="Cat" Type="String"/>
<ExcludeColumnName="HomeTelephone" />
</ContentType>
<ExcludeContentTypeName="Order"/>
<ListName=”Team Members” Type=”TeamMember”>
<ContentTypeName=”Item” Class=”TeamMember” />
</List>
</Web>

LINQ to SharePoint: Parameters XML File

Summary : LINQ to SharePoint
REST APIs
Client OM
Client Side
Data Platform
Server Side
Farm
Site
List Data
External Lists
LINQ
(spmetal.exe)
ServerOM

Client ObjectModel

Building Client Applications – MOSS 2007
{code}
Web Services
{SharePoint data}
SharePoint Site
SharePoint API
{SharePoint data}

Client Object Model – SharePoint 2010
{code}
{SharePoint data}
Client Object Model
{SharePoint data}
SharePoint Site

Client Object Model Example Code
class ClientOM
{
using Microsoft.SharePoint.Client;
static void Main()
{
ClientContextclientContext=
new ClientContext("http://datatech");
Web oWebsite = clientContext.Web;
clientContext.Load(oWebsite);
clientContext.ExecuteQuery();
Console.WriteLine(oWebsite.Title);
}
}

Client OM

Client Object Model – How It Works
WCF Service
(Client.svc)
JavaScript Application
Server OM
JSON Response
JavaScript OM
SharePoint Site
XML Request
Proxy
XML Request
Proxy
JSON Response
Managed OM
Managed Code Application (.NET)

Client Object Model – How It Works
Client Application
Server
Sequence of commands:
command 1;
command 2;
command 3;
context.ExecuteQuery();
client.svc
Execute commands
in the batch:
command 1;
command 2;
command 3;
Send results back
XML
JSON
Process results

ClientContextclientContext= new ClientContext("http://sptechcon");
List list= clientContext.Web.Lists.GetByTitle(“Workshops");
CamlQuerycamlQuery = new CamlQuery();
camlQuery.ViewXml= "<View/>";
ListItemCollectionlistItems= list.GetItems(camlQuery);
clientContext.Load(list);
clientContext.Load(listItems);
foreach(ListItemlistItem in listItems)
Console.WriteLine("Id: {0} Title: {1}", listItem.Id,listItem["Title"]);
Client Object Model – Object Identity

Client Object Model – The Pattern
Create a Client Connection
Create the Query
Execute the Query
ClientContextclientContext = new ClientContext("http://datatech");
List list = clientContext.Web.Lists.GetByTitle(“Projects");
clientContext.Load(list);

Client Object Model – Trimming the Results
Title
Property
Web
SharePoint Site
Lists
Collection
Title
Property
Id
Property

.NET CLR Client Object Model
Requires two assemblies:
Microsoft.SharePoint.Client
Microsoft.SharePoint.Client.Runtime
Develop solutions remotely

.NET Client OM
Using CAML Query
Object Identity
Trimming The Results
Creating and Populating a List
Updating Client Objects
Deleting Client Objects
Asynchronous Pattern

Silverlight CLR Client Object Model
Requires two assemblies:
Microsoft.SharePoint.Client.Silverlight
Microsoft.SharePoint.Client.Silverlight.Runtime

Silverlight Client OM

JavaScript Client Object Model
Minified .js files for the ECMAScript (JavaScript, JScript) object model:
SP.js
SP.Core.js
SP.Ribbon.js
SP.Runtime.js
Browser Support for ECMA Script:
Microsoft Internet Explorer 7 and greater
Firefox 3.5 and greater
Safari 4.0 and greater

JavaScript Client OM

Summary : Client Object Model
REST APIs
Client OM
Client Side
Data Platform
Server Side
Farm
Site
List Data
External Lists
LINQ
(spmetal.exe)
ServerOM

RESTful Data ServiceInterface

RESTful Data Service Interface
REST-style list data web service
http://<site>/_vti_bin/ListData.svc
Work with data via REST
SharePoint List Data
Powered by ADO.NET Data Services
ADO.NET Data Services v1.5 CTP2
Entity based programming
Strong Types
LINQ Queries
Integration with Visual Studio

REST API QueryString Parameters
$filter={simple predicate}
$expand={Entity}
$orderby={property}
$skip=n
$top=n
$metadata
Full List - http://bit.ly/RESTfulAPI

Makes Development Easy!

Accessing List Data via REST APIs

Summary
REST APIs
Client OM
Client Side
Data Platform
Server Side
Farm
Site
List Data
External Lists
LINQ
(spmetal.exe)
ServerOM

Thank You
chaks@intergen.co.nz
http://www.chakkaradeep.com/category/SharePoint-2010.aspx
http://twitter.com/chakkaradeep

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Developing With Data Technologies

by Chakkaradeep Chandran on Feb 11, 2010

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Developing With Data Technologies — Presentation Transcript