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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
protected

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.

Parameters

item :  Object

The config object being added.

Returns
Ext.Component

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 6.0.0 - Modern Toolkit


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Ext.field.DatePicker xtype: datepickerfield

Summary

This is a specialized field which shows a Ext.picker.Date when tapped. If it has a predefined value, or a value is selected in the Ext.picker.Date, it will be displayed like a normal Ext.field.Text (but not selectable/changable).

Ext.create('Ext.field.DatePicker', {
    label: 'Birthday',
    value: new Date()
});

Ext.field.DatePicker fields are very simple to implement, and have no required configurations.

Examples

It can be very useful to set a default value configuration on Ext.field.DatePicker fields. In this example, we set the value to be the current date. You can also use the setValue method to update the value at any time.

When you need to retrieve the date from the Ext.field.DatePicker, you can either use the getValue or getFormattedValue methods:

No members found using the current filters

configs

Optional Configs

dateFormat : String

The format to be used when displaying the date in this field. Accepts any valid date format. You can view formats over in the Ext.Date documentation.

Defaults to:

Ext.util.Format.defaultDateFormat

getDateFormat : String

Returns the value of dateFormat

Returns

String

setDateFormat (dateFormat)

Sets the value of dateFormat

Parameters

dateFormat :  String

destroyPickerOnHide : Boolean

Whether or not to destroy the picker widget on hide. This save memory if it's not used frequently, but increase delay time on the next show due to re-instantiation.

Defaults to:

false

getDestroyPickerOnHide : Boolean

Returns the value of destroyPickerOnHide

Returns

Boolean

setDestroyPickerOnHide (destroyPickerOnHide)

Sets the value of destroyPickerOnHide

Parameters

destroyPickerOnHide :  Boolean

picker : Object / Ext.picker.Date

An object that is used when creating the internal Ext.picker.Date component or a direct instance of Ext.picker.Date.

Defaults to:

true

getPicker : Object / Ext.picker.Date

Returns the value of picker

Returns

Object / Ext.picker.Date

setPicker (picker)

Sets the value of picker

Parameters

picker :  Object / Ext.picker.Date

value : Object / Date

Default value for the field and the internal Ext.picker.Date component. Accepts an object of 'year', 'month' and 'day' values, all of which should be numbers, or a Date.

Example: {year: 1989, day: 1, month: 5} = 1st May 1989 or new Date()

getValue Date

Returns the Date value of this field. If you wanted a formatted date use the getFormattedValue method.

Returns

:Date

The date selected

setValue (value)

Sets the value of value

Parameters

value :  Object / Date

methods

Instance Methods

getFormattedValue ( format ) : String

Returns the value of the field formatted using the specified format. If it is not specified, it will default to dateFormat and then Ext.util.Format#defaultDateFormat.

Parameters

format :  String

The format to be returned.

Returns

:String

The formatted date.

onPickerChange ( picker, value )
private pri

Called when the picker changes its value.

Parameters

picker :  Ext.picker.Date

The date picker.

value :  Object

The new value from the date picker.

onPickerHide
private pri

Destroys the picker when it is hidden, if destroyPickerOnHide is set to true.

updateDateFormat ( newDateFormat )
private pri

Updates the date format in the field.

Parameters

newDateFormat :  Object

events

change ( this, newDate, oldDate, eOpts )

Fires when a date is selected

Parameters

this :  Ext.field.DatePicker

newDate :  Date

The new date

oldDate :  Date

The old date

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Ext JS 6.0.0 - Modern Toolkit