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SL4BIZ - Silverlight for Business

Session

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Some points…› Microsoft MVP› MCP, MCTS.› Trainer (hopefully MCT in short ;)› Technical writer & speaker.› Barcelona Developers User Group Leader› INETA Speaker

Contact details› Name: Jose Luis Latorre› E-mail: joslat@gmail.com› Twitter: @joslat› Phone: Sorry! ;)

Speaker

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SL4BIZ - Silverlight For Business

SL4BIZ – Silverlight for Business

• Introduction to Silverlight• Silverlight 4 Business – actual

capabilities• Coding Demo• Futures? What will 5.0 bring?• Question time.

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IndexIntroduction to Silverlight technology. Silverlight for Business right now.Demo time!Futures & what will V5 bring?Question time.

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Silverlight enters the market as an alternative to develop rich islands inside web pages or, better, to design and develop whole sites completely with Silverlight technology – which is really complicated doing so with other technologies. Silverlight also provides high integration with other development environments that we all know.

In any case, Silverlight is a Cross-browser plug-in that works in multiple platforms, with high performance including a multi-core technology and designed to solve the most usual (and unusual) RIA Application problems, like loading/unloading of content, flexible layouts, media reproduction and other..

Why Silverlight?

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Silverlight comes from WPF, Windows Presentation Foundation and is, by now a subset of this technology adapted to web execution.

In fact, in its first versions, it was called WPF/E (Windows Presentation Foundation Everywhere).

Origins

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Easy development of RIA applications. Development on a confortable environment (VS 2008 & VS 2010) Based on known and reliable technology (.NET). Thought for intense communications (Webservices, JSON, REST, WCF, etc..) Based on the evolution of graphical interfaces (WPF, XAML).

› It is important to let clear what XAML is, known as “eXtensible Application Markup Language”. XAML is a declarative language derived from XML which functionality is allow us to define the visual interface, its elements and their layout. It is very similar to other XML derived languages for describing interfaces, like XHTML.

Decoupling the tasks of the Designer (View) and the Developer (Back End, Model, ViewModel, etc..)

Multi-device & multi-Browser.

Main concepts

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Basically, Silverlight is a browser plug-in that renders XAML and allows us to execute code on the client machine and thus saving us from sending the information to the server, its procesor time and the callback with the information, which is what happes with ASP.Net pages (and similar technologies).

High performance in multimedia, concretely in video streaming & its reproduction.

Silverlight is vector based.

Main Concepts

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Impressive evolution. Multi platform & Multi browser pluginof around 4Mb. Already on 60% of the world’s browsers. Actually the best solution for developing RIA

applications.

Actual State and Roadmap

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Architecture

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XAML based

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Game changing technology

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IndexIntroduction to Silverlight technology. Silverlight for Business right now.Demo time!Futures & what will V5 bring?Question time.

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Actual capabilities (with SL4.0 & WCF RIA Services 1.0)

Displaying data• Binding enhancements• DataGrid enhancements• Rich Text Box• Stacked series Charts Filter Grouping Sorting Paging WebBrowser

Professional look and feel• ICommand• Right-Click• Context Menu • Implicit Styles / Themes• Fluid UI• Mouse Wheel

Getting user input• Drag & Drop• Webcam / mic• RIA Services• Multi touch• COM

Validating user input• INotifyDataErrorInfo• Async Validation• IDataErrorInfo• Cross-field Validation• Authentication

Saving data and sharing it• Printing• Clipboard• Office Integration

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WCF RIA Services Vision – now with 1.0 flavor!

Simplify n-tier data-driven application development A higher level framework on top of existing building blocks› LINQ, Data Access Technologies, WCF, Metadata

Provide an application architecture that scales to fit needs of breadth line-of-business applications

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Actual capabilities (with SL4.0 & WCF RIA Services 1.0)

Displaying data• Binding enhancements• DataGrid enhancements• Rich Text Box• Stacked series Charts Filter Grouping Sorting Paging WebBrowser

Professional look and feel• ICommand• Right-Click• Context Menu • Implicit Styles / Themes• Fluid UI• Mouse Wheel

Getting user input• Drag & Drop• Webcam / mic• RIA Services

Validating user input• INotifyDataErrorInfo• Async Validation• IDataErrorInfo• Cross-field Validation• Authentication

Saving data and sharing it• Printing• Clipboard• Office Integration

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Vision and Goals

Simplify RIA-style application development› n-tier is hard, and un-natural› Focus on data-driven apps

Bring ASP.NET-style productivity to RIA development› Building blocks for data, security, etc.› Focus on scenarios

Client as an extension of the server A single logical application

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ApplicationBrowser Rich Internet Application

DB

Service

Other Applications

A Unified Story for Client and Server

Data Access Layer

AppLogic

Services

HTMLPresentati

onLogic

Network

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Scaling your DomainServices

AppLogic

DatabasesADO.NET,ORMs (LTS, EF, …)

Lists/ObjectsRepository(NHibernate, …)

ServicesREST/SOAP(Azure, …)

.NET ClientsSilverlight, Phone,WPF

Standards ClientsJavaScript

Server RenderingHTML, Sitemaps

ServicesSOAP, XML,JSON, OData Unit Test

Code

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WCF RIA Services

Application

DB

Services

Data Access Layer

AppLogic

Presentation

LogicNetwor

k

DomainServiceStateless CRUD + App Logic

class BookShelfServiceIQueryable<Book> GetBooks()void ShareBook(Book)void UpdateBook(Book)void UnshareBook (Book)Validation, authorization, business rulesData Model class Book

DomainContextStateful view + Bindable Data

class BookShelfContextEntitySet<Book> Books { get }EntityQuery<Book> GetBooksQuery()

Entitiesclass BookData members + Validation

Data Model +Metadata +Shared Code

DomainService.Query Invoke GetBooks() Compose query, execute, serialize resultsDomainService.SubmitChanges Authorize, Validate, Execute, Persist

var q = Context.GetBooksQuery()Context.Load(q);

Context.Books.Add(newBook);Context.SubmitChanges();

Queries and ChangeSets

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A Prescriptive Pattern

Rich Internet Application

DB

Services

Data Access Layer

AppLogic

Presentation

LogicNetwor

k

DomainServiceStateless CRUD + App Logic

class PlateViewDomainServiceIQueryable<Restaurant> GetRestaurants()IQueryable<Restaurant> SearchRestaurant(string)void AddRestaurant(Restaurant)Validation and authorization rules, Application workflows, …

Data Model class Book

DomainContextStateful view + Bindable Data

class PlateViewDomainServiceEntityList<Restaurant> Books { get }EntityQuery<Restaurant> GetRestaurantQuery()EntityQuery<Restaurant> SearchRestaurantQuery(string)

class RestaurantData members + Validation

Data Model +Metadata +Shared Code

DomainContex

t

Domain

Service

Under the covers infrastructure

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IndexIntroduction to Silverlight technology. Silverlight for Business right now.Demo time!Futures & what will V5 bring?Question time.

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Demo

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IndexIntroduction to Silverlight technology. Silverlight for Business right now.Demo time!Futures & what will V5 bring?Question time.

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Futures & what will V5 bring?

5 to 6 months for next version (Beta - only for developers) Some suggested features:› Improved databinding (non fw elements, styles,

ancestors-relative binding, static…)› 3D support› More platforms, iPhone, iPad, ..› Encoding & Streaming from the client› Consolidate SL & WPF› Reporting› Better GPU Usage; Shaders› Local DB› Better Text Rendering..

See more & participate here:› http://dotnet.uservoice.com/forums/4325-silverlight-

feature-suggestions› http://dotnet.uservoice.com/forums/57026-wcf-ria-

services

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Futures & what will V5 bring?

See more & participate here:› http://dotnet.uservoice.com/forums/4325-silverlight-

feature-suggestions› http://dotnet.uservoice.com/forums/57026-wcf-ria-

services

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IndexIntroduction to Silverlight technology. Silverlight for Business right now.Demo time!Futures & what will V5 bring?Question time.

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Thanks!!