Extjs 6.2.1 Download

admin
  1. Extjs 6.2 1 examples 相關參考資料 Ext JS 6.2.1 - Docs 跳到 Expanding and Collapsing Examples and Class Members - Runnable examples (Fiddles) are expanded on a page by default.
  2. Download Interchange for free. Interchange is the open source e-commerce platform that enables you to easily build your online shop. It offers more flexible and scalable approach than other shopping cart software.
  3. Ext JS leverages HTML5 features on modern browsers while maintaining compatibility and functionality for legacy browsers. Use these examples to build your cross-platform apps for desktop, tablets, and smartphones.
  4. Hi Rajesh, Yes, those versions should be fine. The requirements for Themer are ExtJS 6.0+ and Cmd 6.2+. If you are referring to the Theming contest, I don't think you should have any issues using 6.2.1.

Contents

Sencha ExtGen - Open Tools for Ext JS JavaScript 13 11 3 3 Updated Dec 8, 2020. Java 5 6 2 1 Updated Nov 12, 2020. Gxt-demo-grids See the GXT grids in action.

VersionTerms, Icons, and LabelsAccess LevelsMember TypesMember SyntaxMember FlagsClass IconsMember IconsNavigation and FeaturesClass Member Quick-Nav MenuGetter and Setter MethodsHistory BarSearch and FiltersAPI Doc Class MetadataExpanding and Collapsing Examples and Class MembersDesktop -vs- Mobile ViewViewing the Class Source

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.

  • Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.

  • Protected class members are stable public members intended to be used by the owning class or its subclasses. Protected members may safely be extended via a subclass.

  • Private classes and class members are used internally by the framework and are not intended to be used by application developers. Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic.

Member Types

  • Config - The configuration options for a class.
  • Property - Set once a class is instantiated. *See Read Only below.
  • Method - Actions that can be performed by a class. Methods should be read as instance methods and can only be called from a instance of a given class. Static methods that can be called directly from the class itself will have a static label next to the method name. *See Static below.
  • Event - Events are specific to the framework event system allowing for classes to programmatically raise an event to be handled by one or more event handler methods. DOM events, while handled by the framework event system, are not specifically described within the API documentation. *For DOM events refer to the event reference page from MDN.
  • Theme Variable - Variables used by the visual theme engine employed by the framework.
  • Theme Mixin - Functions used by the visual theme engine employed by the framework and may use values set in various Theme Variables.

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.

Ext.Component

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

Lalitha sahasranamam in telugu pdf. - 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

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:

  • 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.

Extjs 6.2.1 Download App

By default, the WMS layer makes requests for 256 x 256 (pixel) images to fill your map viewport and beyond. As you pan and zoom around your map, more requests for images go out to fill the areas you haven’t yet visited. While your browser will cache some requested images, a lot of processing work is typically required for the server to dynamically render images.

Since tiled layers (such as the WMS layer) make requests for images on a regular grid, it is possible for the server to cache these image requests and return the cached result next time you (or someone else) visits the same area - resulting in better performance all around.

3.2.1. OpenLayers.Layer.XYZ¶

The Web Map Service specification allows a lot of flexibility in terms of what a client can request. Without constraints, this makes caching difficult or impossible in practice.

At the opposite extreme, a service might offer tiles only at a fixed set of zoom levels and only for a regular grid. These can be generalized as XYZ layers - you can consider X and Y to indicate the column and row of the grid and Z to represent the zoom level.

3.2.2. OpenLayers.Layer.OSM¶

The OpenStreetMap (OSM) project is an effort to collect and make freely available map data for the world. OSM provides a few different renderings of their data as cached tile sets. These renderings conform to the basic XYZ grid arrangement and can be used in an OpenLayers map. The OpenLayers.Layer.OSM constructor accesses OpenStreetMap tiles.

Tasks

  1. Open the map.html file from the previous section in a text editor and change the map initialization code to look like the following:

  2. In the <head> of the same document, add a few style declarations for the layer attribution.

  3. Save your changes, and refresh the page in your browser: http://localhost:8082/ol_workshop/map.html

A map with an OpenStreetMap layer.

Extjs 6.2.1 Download Pc

3.2.2.1. A Closer Look¶

3.2.2.1.1. Projections¶

Review the first 3 lines of the initialization script:

Geospatial data can come in any number of coordinate reference systems. One data set might use geographic coordinates (longitude and latitude) in degrees, and another might have coordinates in a local projection with units in meters. A full discussion of coordinate reference systems is beyond the scope of this module, but it is important to understand the basic concept.

OpenLayers needs to know the coordinate system for your data. Internally, thisis represented with an OpenLayers.Projection object. The transform function also takes strings that represent the coordinate reference system ('EPSG:4326' and 'EPSG:3857' above).

3.2.2.1.2. Locations Transformed¶

The OpenStreetMap tiles that we will be using are in a Mercator projection. Because of this, we need to set the initial center using Mercator coordinates. Since it is relatively easy to find out the coordinates for a place of interest in geographic coordinates, we use the transform method to turn geographic coordinates ('EPSG:4326') into Mercator coordinates ('EPSG:3857').

3.2.2.1.3. Custom Map Options¶

In the previous example we used the default options for our map. In this example, we set a custom map projection.

Note

The projections we used here are the only projections that OpenLayers knowsabout. For other projections, the map options need to contain two moreproperties: maxExtent and units. This information can be looked upat http://spatialreference.org/, using the EPSG code.

3.2.2.1.4. Layer Creation and Map Location¶

As before, we create a layer and add it to our map. This time, we accept all the default options for the layer.

Finally, we give our map a center (in Mercator coordinates) and set the zoom level to 9.

3.2.2.1.5. Style¶

A treatment of map controls is also outside the scope of this module, but these style declarations give you a sneak preview. By default, an OpenLayers.Control.Attribution control is added to all maps. This lets layers display attribution information in the map viewport. The declarations above alter the style of this attribution for our map (notice the small Copyright line at the bottom left of the map).

Having mastered layers with publicly available cached tile sets, let’s move on to working with proprietary layers.

3.2.2.1.6. Bonus exercise¶

  1. Review the OSM layer API documentation to how to load other OSM layers
  2. Modify your layer initialization accordingly

Hint

You can go to the official OSM site to view the layersavailable, change to any of them and use the browser tools to look for theurl pattern of those tiles.

Here you have some different renderings of OSM, extract the template URL and try to create your own custom OSM map:

Extjs 6.2.1 Download Version

  • OSM Bicycle map: http://b.tile.thunderforest.com/cycle/16/32319/25546.png
  • OSM Transport map: http://c.tile.thunderforest.com/transport/16/32318/25545.png
  • Stamen watercolor map: http://d.tile.stamen.com/watercolor/15/16159/12773.jpg
  • Stamen toner map: http://d.tile.stamen.com/toner/14/8079/6386.png
  • Mapbox Saman Bemel random map: https://a.tiles.mapbox.com/v3/saman.h6ek9086/14/8080/6386.png

Warning

Extjs 6.2.1 Download Torrent

Those tiles are used here for educational purposes, check owner conditions before using them on your projects!!