RUSS FUSTINO HEAD OF DEVELOPER EVANGELISM

@russcamtvrussf@componentone.com

www.componentone.com/russcam

JavaScript for the ASP.NET Developer

Chris Bannon - @Wijmo PM @b4nn0n

chris.bannon@componentone.com

ABOUT ME

Head of Developer Evangelism at ComponentOne

Former Microsoft Developer Evangelist

Windows 8 Key Influencer

Social Media and Video Production Expert

INETA Lifetime Achievement Award Winner

WHY USE JAVASCRIPT AND HTML5?

• 61% leave a site if it is not mobile-ready

• 79% search for another site

• 48% said if a site didn’t work on a mobile device, they didn’t feel the company valued their business

• Bottom line… there is a real world business need for mobile ready sites

• * Source Google Blog

HOW DO I USE MY SKILL SET AS AN ASP.NET DEVELOPER,

TO A PROGRAM IN JAVASCRIPT?

• What is the pain solved using JavaScript anyway?

• How do I use AJAX in JavaScript?

• Are there ‘built in’ libraries available?

• How do I use third party controls?

• What about data binding?

• What about frameworks?

MOBILITY IS IMPORTANT!RESPONSIVE WEBSITE DEMO

SALES DASHBOARD

HOW DO I GET FROM THIS…

ASP.Net

Ajax Controls

…TO THIS?

HTML5

Ajax

RUSS FUSTINO’S MAP

ASP.Net

AjaxControls

HTML5

Ajax

WHAT EXACTLY IS AJAX?

Ajax == Asynchronous JavaScript and XML

Ajax is really a set of technologies working together:

XHTML and CSS for markup DOM for display and interaction XML and XSLT for data interchange & manipulation JSON for marshalling objects XMLHttpRequest for asynchronous communication JavaScript for tying it all together

Allows us to load data from the server without a browser page refresh

DEMO

Ajax

JQUERY• Javascript is HARD• jQuery is a Javascript library that makes Javascript easier• Simplifies DOM spelunking• Handles browser differences• Provides a key shortcut “$”

•Download from jquery.com• The jQuery library has a full suite of functions and methods for AJAX capabilities. •Hosted on CDN

JQUERY SYNTAX

• $(selector).action()

• $ references jQuery; (selector) queries the DOM element or elements; and .action() performs an action on the element.• Examples of jQuery syntax:

◾$(this).hide() hides the current element.◾$("p").hide() hides all paragraphs.◾$("p.wow").hide() hides all paragraphs of the class "wow".◾$("#wow").hide() hides an element with the id of "wow".

HTTP://API.JQUERY.COM/

HTTP://WIJMO.COM/WIKI/INDEX.PHP/GETTING_STARTED_WITH_WIJMO

DEMOS

jQuery and Ajax

JQUERY UI

•UI controls built on top of jQuery•All open source•Download from jqueryui.com•Hosted on CDN

HOW JQUERY UI WORKS

HTML Widget

jQueryUI

HTML JS CSS

JQUERYUIWidgets

AccordionAutocompleteButtonDatepickerDialogMenuProgressbarSliderSpinnerTabsTooltip

Interactions

DraggableDroppableResizeableSelectableSortable

Effects

Add classColor animationEffectHideRemove classShowSwitch classToggleToggle class

Utilities

PositionWidget class factory

WIDGET API

Widget

Options(Configure widget)

HTTP://API.JQUERYUI.COM

DEMO 3

jQueryUI

•HTML5• jQuery / jQuery UI• jQuery Mobile•CSS3•SVG•Knockout•Angular JS•Breeze JS

WIJMO IS OUR CORE CLIENT-SIDE FRAMEWORK BUILT ON WEB STANDARDSHTML5 TECHNOLOGY

• ASP.NET WebForms• ASP.NET MVC• JavaScript/jQuery/HTML5• Any Platform (PHP, Rails, etc)• Studio for ASP.NET• LightSwitch

WIJMO IS ONE TECHNOLOGY FOR ALL DEVELOPMENTOLOGY

• Cross-browser support• IE6+, Firefox, Chrome, Safari

• Tablets •Mobile Phones •Windows 8

WIJMO WORKS EVERYWHEREWORKS EVERYWHERE

WIJMO • Enhanced controls built on top of jQueryUI

• Created by ComponentOne

• Two Commercial versions • Wijmo Professional• Wijmo Enterprise

• Download from wijmo.com

• Hosted on CDN

• All widgets adapt automatically to jQueryUI or jQuery Mobile

MORE OPTIONS, EVENTS AND METHODS

DEMO

Wijmo

DEMO

WijmoWindows Phone 8 HTML5

Adaptive Widget framework

KNOCKOUT.JS

•MVVM Support•Declarative Bindings•Observables• Live Data• Supported in every widget• It’s Optional

WHAT IS MVVM?• Model• The Model encapsulates the domain model, business logic and may

include data access. For Example a Customer object contains properties for Name and Address.

• View• The view is the application’s User Interface (UI). It defines the

appearance of visual elements and controls such as text boxes and buttons.

• View Model• The view model is responsible for holding application state, handling

presentation logic and exposing application data and operations (commands) to the view such as LoadCustomers and SaveCustomers. It acts as the intermediary between the view and model.

3 STEPS FOR USING KNOCKOUT WITH WIJMO

• 1. Add references to the latest jQuery dependencies, Wijmo widgets, Knockout .js file, and KO extension library for Wijmo.

• 2. Create the ViewModel and View: add JavaScript to define the data and behavior of the UI, and add markup to create the View—the visual, interactive UI.

• 3. Bind the Wijmo widget(s) to the ViewModel and activate KO.

DEMO

Knockout

KNOCKOUT OR ANGULAR?

• Knockout is just about data binding• Knockout is solid, very widespread, and reliable.• Fully supported by Wijmo

• Angular is a presentation framework…. • Routing• Animations• View orchestration• Dependency management• Data binding• Fully supported by Wijmo

COMPONENTONE SPECIAL OFFERS

• See:• http://www.componentone.com/SuperPages/SpecialOffers

• Responsive Design is important• jQuery makes JavaScript programming easier• jQuery UI makes using widgets and effects easier• Wijmo exposes more options, methods and events on top of jQuery• Great Wijmo support is available!• All Wijmo widgets work with jQuery Mobile • HTML5 clients are proliferating• Knockout and Angular are great for developers coming from .NET

• Download Wijmo! www.Wijmo.com/downloads

SUMMARY

RESOURCES AND CONTACT INFO

• Email: russf@componentone.com

• Twitter: @russcamtv

• Blog: http://our.componentone.com/author/rfustino/

• Facebook: http://www.facebook.com/russellcamtv

• Daily News: http://russcam.componentone.com

• Wijmo MVVM Supporthttp://wijmo.com/widgets/mvvm-support/

• Download Wijmohttp://wijmo.com/downloads/

• Knockouthttp://knockoutjs.com/

• Chris Bannon (Wijmo) Blogs: http://wijmo.com/posts/

http://our.componentone.com/author/c1_chrisb/