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Sencha EXTJS Invention

Ext JS includes a set of GUI-based form controls (or "widgets") for use within web applications:
  • text field and textarea input controls
  • date fields with a pop-up date-picker
  • numeric fields
  • list box and combo boxes
  • radio and checkbox controls
  • html editor control
  • grid control (with both read-only and edit modes, sortable data, lockable and draggable columns, and a variety of other features)
  • tree control
  • tab panels
  • toolbars
  • desktop application-style menus
  • region panels to allow a form to be divided into multiple sub-sections
  • sliders
  • vector graphics charts
Many of these controls can communicate with a web server using Ajax.

Version releases:
Ext JS 2.0
Ext JS version 2.0 was released on 4 December 2007. This version was promoted as providing an interface and features more similar to those traditionally associated with desktop applications. Also promoted were the new user documentation, API documentation, and samples.
Ext JS 2.0 did not provide a backward compatibility with version 1.1. A migration guide was developed to address this.

Ext JS 3.0
Ext JS version 3.0 was released on 6 July 2009. This version added communication support for REST and a new Ext.Direct server side platform. New flash charting and ListView elements were added to the standard display components. It was backwards compatible with version 2.0 code.

Ext JS 4.0
Version 4.0 of the Ext framework was released on April 26th, 2011. It includes a completely revised class structure,a revised data package, an animation and drawing package that uses SVG and VML, and revised charting and theming. It also includes an optional architecture that provides a model–view–controller (MVC) style of code organization.

Sencha
On 15 June 2010, the merge of Ext JS with JQTouch and Raphaël was announced forming a new organisation called Sencha Inc. Ext JS continues to be available as a main product on the new Sencha website together with Sencha Touch, Sencha GWT, Sencha Architect, Sencha Animator and Ext core.

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