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.
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).
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 may be overridden in subclasses when special processing needs to be applied to child creation.
The component to be added.
Let's look at each part of the member row:
Expand/Collapse
- On the left-hand size of the member row is a control used to
expand and collapse each member row to show / hide member details.
Member Name
- The name of the class member (
lookupComponent
in this example)
Method Param
- Any required or optional params used by a method (or passed to an
event handler method) will be listed next to the method name within parenthesis
(
( item )
in this example)
Return type
- The class instance or javascript object returned by the method or
property (
Ext.Component
in this case). This may be omitted for methods that do not
return anything other than
undefined
or may display as multiple possible values
separated by a forward slash
/
signifying that what is returned may depend on the
results of the method call (i.e. a method may return a Component if a get method calls is
successful or
false
if unsuccessful which would be displayed as
Ext.Component/Boolean
).
Flags
- Any flags applicable to the member will be displayed next (
PROTECTED
in
this example - see the Flags section below)
Member Origin
- On the right-hand side of the member row is the class where the
member was initially described (
Ext.container.Container
in this example). The source
class will be displayed as a blue link if the member originates from the current class
and gray if it is inherited from an ancestor or mixed-in class.
Member Source
- On the right-hand side below the member origin class is a link to
view the member's source (
view source
in the example)
Params List
- Each param for a class method will be listed using the same name
found above in parenthesis, the type of class or object expected, and a description of
the param (
item : Object
in the example).
Returns
- If a class returns a value other than
undefined
a "Returns" section
will note the type of class or object returned and a description (
Ext.Component
in the
example)
Since
(
not shown in the example
) - Some members will show which version of the
product the member was first introduced (i.e.
Available since 3.4.0
-
not pictured in
the example
) just after the member description
Default
(
not shown in the example
) - Configs often show the default config value
to be applied to a class instance if not overridden (i.e.
Defaults to: false
)
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.
Required
- Required config when instantiating a class
Bindable
- The config has a setter which allows this config to be set via ViewModel
binding
Read Only
- The property may be read, but cannot be used to configure /
re-configure a class instance at runtime
Singleton
- Singleton classes are instantiated immediately once defined and may not
be instantiated manually
Static
- A static method or property is a method or property belonging to the class
itself, not an instance of the class
Chainable
- Refers to methods that return the class instance back when called.
This enables chained method calls like:
classInstance.method1().method2().etc();
Deprecated
- A class or member that is scheduled for removal in a future
framework version and is provided in the current version for backwards compatibility.
Deprecated classes and members will have a message directing you to the preferred class /
method going forward.
Removed
- A removed class or member that exists in documentation only as a
reference for users upgrading between framework versions
Template
- A method defined within a base class designed to be overridden by
subclasses
Abstract
- A class or member may be be defined as abstract. Abstract classes and
members establish a class structure and provide limited, if any, code. Class-specific
code will be furnished via overrides in subclasses.
Preventable
- Events marked preventable will not fire if
false
is returned from
an event handler
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
Navigation and Features
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.
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:
Alternate Name
- One or more additional class name synonymns (in Ext JS 6.0.0 the
Ext.button.Button
class has an alternate class name of
Ext.Button
). Alternate class
names are commonly maintained for backward compatibility.
Hierarchy
- The hierararchy view lists the inheritance chain of the current class
up through its ancestor classes up to the root base class.
Mixins
- A list of classes that are mixed into the current class
Inherited Mixins
- A list of classes that are mixed into an ancestor of the current
class
Requires
- All classes required to be defined for the class to be instantiated
Uses
- A list of classes potentially used by the class at some point in its
lifecycle, but not necessarily requried for the class to initially be instantiated
Subclasses
- Classes that extend the current class
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:
Global navigation will be located in a menu on the left-hand side accessible via the
hamburger menu icon. The menu houses the following (on most pages):
-
The name of the current product (as a link to the product landing page)
-
The Sencha icon used to navigate back to the documentation home page
-
The product menu drop-down button
-
Tabs of navigation trees for the API docs and guides
-
Current context navigation and tools is located on the right-hand side accessible via
the gear icon. The context menu houses teh following:
-
The global search input field
-
(
API doc
) A "Filters" tab with the member filter, expand / collapse all examples
button, expand / collapse all member rows button, the access level filter checkboxes,
and the counts of each member
-
(
API doc
) A "Related Classes" tab containing the menu of metadata related to the
current class
-
(
Guides
) The table of contents for the guide
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.
premium
Exporter package
The Exporter package enables data export to various file formats. It supports
native XSLX, Excel XML as well as HTML and CSV/TSV (comma/tab separated value) formats.
The package is not bundled within the Ext JS framework, but is easy to require into
your application. Whether you're working with an application generated by Sencha Cmd or
with an application structure of your own design, including the Exporter code only requires
a couple of steps.
Note:
This guide covers the exporter package bundled in the
Premium version of the Ext JS 6.2 SDK.
Exporter works with both classic and modern toolkits of Sencha Ext JS 6.2.
Sencha Cmd is not required to utilize the Exporter. However, using Cmd allows you to
seamlessly include the Exporter package via your application's
app.json
file.
The Exporter is delivered with full source code that is packaged in a way that makes
it easy to deploy to your application's packages folder.
To include the Exporter in an application then simply modify
your
app.json
file in your application root directory to require the Exporter package:
"name": "YourApp",
"requires": [
"exporter"
"id": "391a5ff6-2fd8-4e10-84d3-9114e1980e2d"
The package supports both classic and modern toolkits so there's no need for toolkit dependent configs.
The SDK contains a compiled version of the Exporter's code that is available for those
not using Sencha Cmd. To include the Exporter in this manner, link the following
assets from your index page:
{unzippedFolder}/packages/exporter/build/{toolkit}/exporter.js
The package provides a grid plugin and classes that generate files which could also be used
independently.
It allows grid data export to various file formats available in the package.
The plugin adds two new methods to the grid component:
-
saveDocumentAs
: This function will save the exported file
-
getDocumentData
: Returns the export document content
Both functions accept a config object as parameter:
-
type
: This is the exporter type (_defaults to
excel
).
-
title
: Set a title to be shown above column headers in the exported document.
-
fileName
: Name of the saved file.
xtype: 'grid',
plugins: 'gridexporter',
columns: [{
dataIndex: 'value',
text: 'Total',
exportStyle: {
format: 'Currency',
alignment: {
horizontal: 'Right'
// later in an event listeners
grid.saveDocumentAs({
type: 'xlsx',
title: 'My export',
fileName: 'myExport.xlsx'
The following configs are available on the grid column:
-
ignoreExport
Set to true to ignore data export for that column
-
exportStyle
Allows you to format the exported data on that column
The
exportStyle
can be defined as a single object that will be used by all available exporters:
xtype: 'datecolumn',
dataIndex: 'date',
text: 'Date',
width: 120,
exportStyle: {
alignment: {
horizontal: 'Right'
font: {
bold: true
format: 'Short Date'
It could also be defined as an array of objects, each object having a "type" property that
specifies the exporter to which it applies:
xtype: 'numbercolumn',
dataIndex: 'price',
text: 'Price',
exportStyle: [{
type: 'html', // used by the html exporter
format: 'Currency',
alignment: {
horizontal: 'Right'
font: {
italic: true
type: 'csv', // used by the csv exporter
format: 'General'
When the array form is used, if the first entry does not have a "type" property it will
be used for exporters that don't have a matching entry for its type.
xtype: 'numbercolumn',
dataIndex: 'price',
text: 'Price',
exportStyle: [{
// no "type" defined means this is the default
format: 'Currency',
alignment: {
horizontal: 'Right'
font: {
italic: true
type: 'csv', // only the CSV exporter has a special style
format: 'General'
This plugin is part of the
pivot
package but uses exporters to export the data.
The
exportStyle
config used by the grid column and described in the previous section is
available on the aggregate and left axis dimensions of the pivot grid.
xtype: 'pivotgrid',
plugins: 'exporter',
matrix: {
leftAxis: [{
dataIndex: 'employee',
header: 'Employee',
exportStyle: {
font: {
bold: true
aggregate: [{
dataIndex: 'price',
header: 'Total',
aggregator: 'sum',
exportStyle: {
format: 'Currency',
alignment: {
horizontal: 'Right'
font: {
italic: true
// ... more configs
The base class for an exporter is
Ext.exporter.Base
. If a new exporter is needed then
a new class could be defined that extends the Base class.
Ext.define('App.exporter.Pdf', {
extend: 'Ext.exporter.Base',
alias: 'exporter.pdf',
fileName: 'export.pdf',
binary: true,
getContent: function(){
// generate pdf content and return it back
The new exporter will be available for Grid and Pivot Grid Exporter plugins.
// in an event listeners
grid.saveDocumentAs({
type: 'pdf',
title: 'My export',
fileName: 'myExport.pdf'
// ... other pdf specific configs
There are cases when tabular data that doesn't come from a grid panel or a pivot grid needs to
be exported to a file. This could be achieved using the available exporters independently.
var exporter = Ext.Factory.exporter({
type: 'excel',
data: {
columns: [{
text: 'Vacation',
columns: [
{ text: 'Month', width: 200, style: { alignment: { horizontal: 'Right' } } },
{ text: 'Days', style: { format: 'General Number' } }
groups: [{
text: 'Employees',
groups: [{
text: 'Adrian',
rows: [{
cells: [
{ value: 'January' },
{ value: 2 }
cells: [
{ value: 'July' },
{ value: 10 }
summaries: [{
cells: [
{ value: 'Total' },
{ value: 12 }
text: 'John',
rows: [{
cells: [
{ value: 'March' },
{ value: 4 }
cells: [
{ value: 'May' },
{ value: 4 }
cells: [
{ value: 'July' },
{ value: 2 }
summaries: [{
cells: [
{ value: 'Total' },
{ value: 10 }
summaries: [{
cells: [
{ value: 'Grand total' },
{ value: 22 }
// save the file
exporter.saveAs().then( function() { exporter.destroy(); } );
File saving
The singleton
Ext.exporter.File
contains functions for file manipulation. It is used
by exporters to save generated files on the end-user machine. Some modern browsers allow
local file saving via Blobs but others do not support this. To solve this problem the generated
file content is sent to the server and returned back with proper headers that will trigger a
file download. The default server that does that is defined in
Ext.exporter.File#property-url
which goes to
https://exporter.sencha.com
but an internal server could be used instead.
Check out the server folder in the exporter package for Node and PHP implementations of
a server script.