Aspnet Ajax 5a1c53

ASP.NET AJAX

Georgi Petrov Telerik, 3/5/2008

Outline   

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Installing ASP.NET AJAX ASP.NET AJAX Architecture Controls in focus:  ScriptManager  Update  UpdateProgress  Timer ASP.NET AJAX Client Life-Cycle events Client Scripting: JavaScript with ASP.NET AJAX Debugging Web Services

Installing ASP.NET AJAX  

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Remove any previously installed versions from Control / Add or Remove Programs the installation package from http:// www.asp.net/ajax/ Be sure to have:  Any Windows operating system version (including Windows 2000) that s the Microsoft .NET Framework version 2.0  The .NET Framework 2.0 or version 3.0  Internet Explorer 5.01 or later

ASP.NET AJAX Architecture Client Script Library Controls, Components Component Model and UI Framework

Client Application Services Browser Integration

Base Class Library

ASP.NET AJAX Server Extensions App Services ASP.NET AJAX Server Controls

Bridge Web Services Bridge

ASP.NET 2.0

Script Core Browser Compatibility

Client Framework & Services

Page, Framework, Server controls

Application Services

Server Framework

ScriptManager A server control that manages partial-page rendering. The ScriptManager control s script components to send to the browser. It also overrides page rendering so that only specified regions of the page are rendered.      

Enabling Partial-Page Rendering Using Type System Extensions ing Custom Script ing Web Services Using Authentication and Profile Services from Client Script The ScriptManagerProxy Class

Update Specifies the parts of a Web page that can participate in partial-page updates. The Update in different scenarios:

Simple Use  Nested Update Controls 

DEMO DEMO

Some controls are incompatible with Update: TreeView, Menu, File, WebParts, Substitution

Update (contd.)

UpdateProgress Provides visual in the browser when the content of Update controls is updated. Please wait…

UpdateProgress (contd.) Showcase: • Showing the update status DEMO

• Showing the update status with STOP button DEMO

Timer The Timer control performs postbacks at defined intervals. • Timer control inside Update DEMO

• Timer control outside Update DEMO

Recap   

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Installing ASP.NET AJAX ASP.NET AJAX Architecture Controls in focus:  ScriptManager  Update  UpdateProgress  Timer ASP.NET AJAX Client Life-Cycle events Client Scripting: JavaScript with ASP.NET AJAX Debugging Web Services

Client Life-Cycle events 

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The two main Microsoft AJAX Library classes that raise events during the client lifecycle of a page are the Application and PageRequestManager classes. The key event for initial requests (GET requests) and synchronous postbacks is the load event of the Application instance. When script in a load event handler runs, all scripts and components have been loaded and are available. When partial-page rendering with Update controls is enabled, the key client events are the events of the PageRequestManager class. These events enable you to handle many common scenarios. These include the ability to cancel postbacks, to give precedence to one postback over another, and to animate Update controls when their content is refreshed.

Client Life-Cycle events

Telerik:

Extending JavaScript with ASP.NET AJAX Classes  Namespaces  Inheritance  Enumerations  Reflections 

Extending JavaScript with ASP.NET AJAX (contd.)

Namespaces, Classes, Inheritance

Extending JavaScript with ASP.NET AJAX (contd.)

Enumeration

Extending JavaScript with ASP.NET AJAX (contd.)

Reflections

Reflection is the ability to examine the structure and components of a program at run time. The APIs that implement reflection are extensions of the Type class. Type.isInterface(type); Type.isNamespace(object); Type.isClass(type); class.inheritsFrom(class);

Debugging 

Configuring the Application for Debugging in Web.config <system.web>

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Sys.Debug - Debug Helper Class DEMO

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Configuring Internet Explorer for Debugging DEMO

Web Services Web Service is standardized way of integrating Webbased applications using the XML, SOAP, WSDL and UDDI open standards over an Internet protocol backbone. 

Simple Web Service DEMO

Web Services (contd.)

References

http://www.asp.net/AJAX  http://forums.asp.net/default.aspx?GroupID  http://asp.net/AJAX/Documentation/Live/Cl 

Q & A session

Thank you!