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Terms, Icons, and Labels

Many classes have shortcut names used when creating (instantiating) a class with a configuration object. The shortcut name is referred to as an alias (or xtype if the class extends Ext.Component). The alias/xtype is listed next to the class name of applicable classes for quick reference.

Access Levels

Framework classes or their members may be specified as private or protected. Else, the class / member is public. Public, protected, and private are access descriptors used to convey how and when the class or class member should be used.

Member Types

Member Syntax

Below is an example class member that we can disect to show the syntax of a class member (the lookupComponent method as viewed from the Ext.button.Button class in this case).

lookupComponent ( item ) : Ext.Component

Called when a raw config object is added to this container either during initialization of the items config, or when new items are added), or {@link #insert inserted.

This method converts the passed object into an instanced child component.

This may be overridden in subclasses when special processing needs to be applied to child creation.


item :  Object

The config object being added.


The component to be added.

Let's look at each part of the member row:

Member Flags

The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon.

Class Icons

- Indicates a framework class

- A singleton framework class. *See the singleton flag for more information

- A component-type framework class (any class within the Ext JS framework that extends Ext.Component)

- Indicates that the class, member, or guide is new in the currently viewed version

Member Icons

- Indicates a class member of type config

- Indicates a class member of type property

- Indicates a class member of type method

- Indicates a class member of type event

- Indicates a class member of type theme variable

- Indicates a class member of type theme mixin

- Indicates that the class, member, or guide is new in the currently viewed version

Class Member Quick-Nav Menu

Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type (this count is updated as filters are applied). Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.

Getter and Setter Methods

Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.

History Bar

Your page history is kept in localstorage and displayed (using the available real estate) just below the top title bar. By default, the only search results shown are the pages matching the product / version you're currently viewing. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. This will show all recent pages in the history bar for all products / versions.

Within the history config menu you will also see a listing of your recent page visits. The results are filtered by the "Current Product / Version" and "All" radio options. Clicking on the button will clear the history bar as well as the history kept in local storage.

If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. When checked, the product/version for each historic page will show alongside the page name in the history bar. Hovering the cursor over the page names in the history bar will also show the product/version as a tooltip.

Search and Filters

Both API docs and guides can be searched for using the search field at the top of the page.

On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level, inheritance, and read only. This is done using the checkboxes at the top of the page.

The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes.

Clicking on an empty search field will show your last 10 searches for quick navigation.

API Doc Class Metadata

Each API doc page (with the exception of Javascript primitives pages) has a menu view of metadata relating to that class. This metadata view will have one or more of the following:

Expanding and Collapsing Examples and Class Members

Runnable examples (Fiddles) are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.

Class members are collapsed on a page by default. You can expand and collapse members using the arrow icon on the left of the member row or globally using the expand / collapse all toggle button top-right.

Desktop -vs- Mobile View

Viewing the docs on narrower screens or browsers will result in a view optimized for a smaller form factor. The primary differences between the desktop and "mobile" view are:

Viewing the Class Source

The class source can be viewed by clicking on the class name at the top of an API doc page. The source for class members can be viewed by clicking on the "view source" link on the right-hand side of the member row.

Ext JS 6.7.0


Release Notes for Ext JS


  • Grid EXTJS-27987 Tabbing across editable fields break the grid view when a scroll happens

  • Grid EXTJS-27994 Issue with registered fields on grids with deferred columns

  • Virtual Scroller EXTJS-27965 By clicking, Horizontal and Vertical scroll bar is not moving to the extreme end for Virtual scroller


  • All EXTJS-27990 Viewport not resizing when browser window resized

Release Notes for Ext JS


  • Grid EXT-12 Modern grid should support filter menu plugin

  • Grid EXT-53 Modern grid should support locked columns

  • Grid EXT-453 Modern toolkit should support locking grid

  • Grid EXT-488 Implement lockedgrid component

  • Grid EXT-603 Implement Active Filters Menu & Selection

  • Grid EXT-604 Update Grid Filtering Kitchensink example to Active Filter Menu & Selection

  • Grid EXT-606 Update Grid Locking Kitchensink example

  • Grid EXTJS-27369 Modern: datepickerfield does not come up the second time

  • Grid EXTJS-26938 Lock scrolling from left to right using keyboard, scrollbar goes invisible

  • Grid EXTJS-26939 Selecting rows on locked side is not reflected on the normal side, and vice versa

  • Combobox EXT-240 Modern Toolkit combobox should render multiple selected values as tags

  • ColorPicker EXT-462 Modern toolkit should provide a color picker

  • ColorPicker EXT-528 Implement Ext.colorpick.Panel and Ext.colorpick.Button and ColorField

  • Chip EXT-546 Modern toolkit should have a chip component

  • Chip EXT-547 Modern toolkit should have a chip dataview component

  • ExtGen EXT-732 Update ExtGen to support Ext JS 6.7

  • ExtBuild EXT-733 Update ExtBuild to support Ext JS 6.7

  • Calendar EXTJS-27626 Calendar multi-pane view shows duplicate dates when crossing time change boundaries

  • Forms EXTJS-27642 Datefield in Modern throws error when clicked on calendar icon

  • Forms EXTJS-19926 Keyboard overlays the textfield in which I am typing

  • Forms EXTJS-27272 Modern List with selectable: 'multi' doesn't trigger 'deselect' event.

  • SelectField EXTJS-27307 Selection does not work when using a stylus with selectfield in IE11

  • Calendar EXTJS-23042 Whole day events are off by 1hr due to DST after drag and drop

  • Events EXTJS-19332 Nodes appended when calling load on Treelist store

  • Material EXTJS-25493 Unable to set dark-mode of material theme at runtime

  • Charts EXTJS-26064 Bar Chart with 2 columns renders incorrectly

  • Button EXTJS-27315 On touch enabled devices a button with menu adds a # to the url changing the current route

  • All EXT-725 Update Ext JS Examples with npm packages and open tooling

  • All EXT-729 Clone and Update Multi Package Demo example with npm packages


  • Grid EXTJS-23293 Grouping store does not handle removing properly

  • Grid EXTJS-24301 View is scrolled when trying to select cells in spreadsheet mode

  • Grid EXTJS-26115 checkbox selection model no longer supports renderer

  • Grid EXTJS-26274 Grid with checkbox selection can cause looping while scrolling

  • Grid EXTJS-26424 Using scrollBy to vertically scroll normalView of a locked grid causes vertical scroll bar to jump to top

  • Grid EXTJS-26541 Ext.view.Table -> onFocusEnter can throw uncaught errors when scrolling

  • Grid EXTJS-26580 Cellediting in grid drops out of edit mode upon scroll with bufferedRender

  • Grid EXTJS-26858 Widget is removed from widget column in IE

  • Grid EXTJS-26912 Toggling summary / grouping in a grid does not redraw the rows when the grid is scrolled

  • Grid EXTJS-26976 Checkboxmodel with selected range will not scroll unless using scroll bar directly

  • Grid EXTJS-27173 Grid blank view issue on clearFilter of store

  • Grid EXTJS-27026 Session does not maintain model/id on collapse/expand in grouping store

  • Grid EXTJS-27300 Spreadsheet Selection Issues

  • Grid EXTJS-27376 Locked grid scrolling behaviour erratic when grid is scrolled rapidly

  • Grid EXTJS-21259 Window does not close on escape keypress when grid is using cellediting plugin

  • Grid EXTJS-23391 Selection extender positioned incorrectly on a locked grid

  • Grid EXTJS-26403 Memory leak through failure to clean up operation after cancelled store load

  • Grid EXTJS-26901 Change in behavior since in spreadsheetmodel with checkboxSelect: true, when selected by mouse drag over multiple checkboxes

  • Grid EXTJS-27402 column.Tree incorrectly sets hasCustomRenderer

  • Grid EXTJS-27407 Disabled lockable grid cannot be enabled again (classic)

  • Grid EXTJS-27571 Stateful grid can apply incorrect state when adding new columns

  • Panel EXTJS-27089 When placeholder is set for Ext.panel.Panel it throws error: candidate.isXType is not a function

  • Dashboard EXTJS-27131 dashboard part width decreases when a new part added

  • Animation EXTJS-27286 Animated window with binding renders ghost to animation destination.

  • Calendar EXTJS-23035 DST positioning is incorrect based on time in weekly view

  • All EXTJS-27401 Binding cleanup fails with null values

  • Core EXTJS-27666 Date.add should default preventDSTAdjust = true

  • Forms EXTJS-17876 date field setValue does not publish changes like text field does Forms EXTJS-26994 Caption of Field-sets is not visible in Safari

  • Dashboard EXTJS-27742 Fix Dashboard test cases on ext-6.7.x branch

  • Combobox EXTJS-22852 Combobox - select event always fires when losing focus

  • Charts EXTJS-27007 Charts - infinite layout loop

Ext JS 6.7.0