速度真快，ExtJS第5个预览版发布

Release Notes for Ext JS 4 PR5

Release Notes: March 18, 2011

Version Number: 4.0.0pr5

Download: here

Release Notes

New In This Release

New Examples

Ext.Direct Named Arguments

Registration Form

StatusBar

Advanced StatusBar

Tree Reorder

XML Tree

TreeGrid

Bug Fixes

Fix bug on FF for Mac where an initial layout of
boxes causes the innerCt to scroll, and it becomes stuck at the
scrollPosition. Manifesting in layout-browser example

Fix the problem in IE where the margin-bottom of the last item was not being included in the "auto" height of its Container

Fix issue where dragging a child to become the last child in a folder would insert it in the wrong position

Fix an issue where the sortType was not being honored when local sorting in a grid

Fix issue when calling setProxy on a model subclass

Fix Ext.panel.TablePanel hideHeaders configuration option

Fix button layout in IE7 when minWidth is set

Fix minButtonWidth in FormPanels

Fix bug where StoreMgr would not be able to create a Store from a store config object

Fix layout/alignment issues in fieldset legends with IE

Fix for IE6 repaint bug on right edge of framed panel

Fix display of tooltip anchor arrow

Fix scope for custom validator method

Fix icon position of grid header when align:right

Fix issue with dateRenderer when dealing with null values

Fix issue with masking in IE6-9 Quirks and IE6 strict

Fix problem with Panel's initial collapse state setting, and subsequent expansion by the Accordion layout

Fix ComboBox setValue to handle empty values

Fix issue with Line Series shadows which weren't refreshed when animations were not enabled on

Enhancements

Refactored the Tree code. Working features as
of this point are Tree rendering, expanding & collapsing, drag
and drop, loading a tree from memory, have multiple columns, keyboard
navigation and selection model

Added support for named arguments in Ext.Direct methods

Every Record registers itself with the ModelMgr

Implemented Tree collapse and expand animations

Implement loading nodes in a sorted TreeStore

Added a lastframe event to the animation that only fires when the animation actually reaches its end

Define getters for getting the computed height and width from an animations target to use as the from values

Refactor Tree collapse and expand animations. This fixes quickly collapsing and expanding nodes

Added a new transform option for Sorter

Panel's getDockedItems now accepts a ComponentQuery selector string

Add setSrc method to ImageComponent for changing the image src after initialization

Added 'none' as a possible value for msgTarget, to prevent all
error message rendering. Only fire errorchange event when the error
message actually changes

Add hideGroupedHeader support to Ext.grid.GroupingFeature

FormPanel and FieldContainer both contained logic to handle the
addition and removal of Labelable and Field instances within their items
subtree; factored that common logic out into a FieldAncestor mixin for
both to use. The new mixin also adds new events 'fieldvaliditychange'
and 'fielderrorchange' that allow listening for changes at the parent
container level

Allow checkbox fields to display errors

All the old config properties that controlled the dropdown list
have been removed in favor of a single listConfig object, which gets
passed along to the BoundList's config. This is much simpler and
provides total control over all aspects of the list

Implemented valueNotFoundText

Enhanced BoundList layout to handle min/max for both width and height

Implement ComboBox pageSize option

elasticOut and bounceIn easing added for animations

Added support for rootVisible. Also moved the creation of the NodeStore from TreeStore to the TreeView

Added support for the 'root' configuration option on TreeStore. It
supports the 3.3 way of specifying root and children. Automatically
figures out whether to load children on expand from the server or
memory. Also removed requirement to specify a proxy on a TreeStore.
Removed requirement to specify store on TreePanel and support the 'root'
config option on TreePanel automatically creating a TreeStore

Modified TreeView so that it expands the root node if it's not visible

Modified getSourceFiles to include support for writing XML documents

Moved additional class for VML from javascript into the stylesheet

Add in support for icon and iconCls on tree nodes

Support loading flat json data while still loading children from the root property

API Changes

Refactored Tree to be able to decorate records with a Node API

Reimplemented TreeStore and created new class called NodeStore

Border layout is now responsible for performing a mini-collapse of a child Panel

Panel now performs a collapse to leave its header (or a newly
generated, injected header) visible. It does not perform a mini-collapse

Renamed FlatTreeView to TreeView

Correct getRefItems implementation in light of ComponentQuery selector being available in getDockedItems

Add boxLabelEl as render selector for checkbox fields

Ext.data.Model.id now assigns the new id to the record

Compatibility Changes

Added an alias for Ext.data.Field

Added an alert when there are compat errors and no console

Added compat code for GridView & JsonStore

Modified paging example to switch getRowClass to PreviewPlugin

Added internal Ext 3 > 4 class mapping utility

Documentation Refactors

Charting overview document

Ext3 Legacy

Ext.form.TextArea

Ext.form.Checkbox

Ext.form.Radio

Ext.form.Field

Ext.form.FieldContainer

Ext.form.FieldSet

Ext.form.FormPanel

Ext.form.Labelable

Ext.Base

Ext.Button

Ext.Component#draggable

Ext.ComponentDragger

Ext.Loader

Ext.Array

Ext.TabPanel

Ext.TabPanel

Ext.form.BaseField

Ext.form.ComboBox

Ext.form.Text

Ext.form.Basic

Ext.Toolbar

Ext.data.SortTypes

Ext.data.StoreMgr

Ext.state.Manager

Ext.util.Animate

Ext.form.Date

Ext.form.Label

Ext.form.Number

Ext.Viewport

Ext.Window

Ext.ComponentQuery

Ext.Panel

Ext.form.FieldAncestor

Ext.Container

Ext.Component

Ext.grid.GridViewDDPlugin

Known Issues

Portal example not correct in IE6

Toolbar menu overflow not styled in IE6

Charts do not render properly in Safari 3.2

Menu links (anchor tags) need styling

Minor clipping of panel header text in Opera and IE6/7

原文：http://www.sencha.com/forum/showthread.php?125072-Ext-JS-4-Releases-and-Notes-%284.0PR5%29