What is Ext JS?
Forum EXT JS Examples Ext JS provides the industry's most comprehensive collection of high-performance, customizable UI widgets - including HTML5 grids, trees, lists, forms, menus, toolbars, panels, windows, and much more.
What is ext Start menu in Linux?
Ext.ux.desktop.StartMenu Summary A menu object. This is the container to which you may add Ext.menu.Item. Menus may contain either Ext.menu.Item, or general Ext.Component. Menus may also contain docked itemsbecause it extends Ext.panel.Panel.
What are member icons in Ext JS?
- 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
What is a toolbar in EXT?
Toolbars also have some mechanical elements such as spacers and dividers that can help to organize the buttons on your toolbars items. We will also cover how to make these elements react to user interaction. Just about every Ext component— panels, windows, grids can accept a toolbar on either the top or the bottom.
What is an Ext panel tool?
An array of Ext.panel.Tool configs/instances to be added to the header tool area. The tools are stored as child components of the header container. They can be accessed using down and {#query}, as well as the other component methods. The toggle tool is automatically created if collapsible is set to true.
Why does Ext.GlobalEvents fire?
This is done globally because the (few) listeners can immediately receive the event rather than bubbling the event only to reach the top and have no listeners.
What is custom CSS style?
Custom CSS styles to be applied to the panel's body element, which can be supplied as a valid CSS style string, an object containing style property name/value pairs or a function that returns such a string or object. For example, these two formats are interpreted to be equivalent:
What is active item in a container?
A string component id or the numeric index of the component that should be initially activated within the container's layout on render. For example, activeItem: 'item-1' or activeItem: 0 (index 0 = the first item in the container's collection). activeItem only applies to layout styles that can display items one at a time (like Ext.layout.container.Card and Ext.layout.container.Fit ).
When to use addmanagedListener?
The addManagedListener method is used when some object (call it "A") is listening to an event on another observable object ("B") and you want to remove that listener from "B" when "A" is destroyed. This is not an issue when "B" is destroyed because all of its listeners will be removed at that time.
Does Ext use lazy rendering?
Ext uses lazy rendering. Child Components will only be rendered should it become necessary. Items are automatically laid out when they are first shown (no sizing is done while hidden), or in response to a updateLayout call.
Summary
A menu object. This is the container to which you may add Ext.menu.Item.
activeChildTabIndex : Number
DOM tabIndex attribute to set on the active Focusable child of this container when using the "Roaming tabindex" technique.
allowFocusingDisabledChildren : Boolean
Set this to true to enable focusing disabled child items via keyboard.
ariaDescribedBy : String
DOM selector for a child element that is to be used as description for this Component, set in aria-describedby attribute. The selector works the same way as ariaLabelledBy.
ariaLabel : String
ARIA label for this Component. It is best to use ariaLabelledBy option instead, because screen readers prefer aria-labelledby attribute to aria-label. ariaLabel and ariaLabelledBy config options are mutually exclusive.
ariaLabelledBy : String
DOM selector for a child element that is to be used as label for this Component, set in aria-labelledby attribute. If the selector is by id, the label element can be any existing element, not necessarily a child of the main Component element.
Buttons, Menus, and Toolbars in Ext JS
The unsung heroes of every application are the simple things like buttons, menus, and toolbars. In this article by Shea Frederick, Steve ‘Cutter’ Blades, and Colin Ramsay, we will cover how to add these items to our applications.
A toolbar for every occasion
Just about every Ext component— panels, windows, grids can accept a toolbar on either the top or the bottom. The option is also available to render the toolbar standalone into any DOM element in our document. The toolbar is an extremely flexible and useful component that will no doubt be used in every application.
Toolbars
Our first toolbar is going to be rendered standalone in the body of our document. We will add one of each of the main button types, so we can experiment with each:
