Archive
You’re viewing the archive. These posts are from the ExtJS era — the code may be obsolete, but the principles often still apply.
Ext, Angular, React, and Vue
June 27, 2019
I had an opportunity to work also with non-Ext frameworks while I was integrating wonderful Bryntum Scheduler and Gantt to Angular, React and while doing so I had to learn about the other frameworks. I already have a lot of experiences with ExtJS and I have written many large production-grade applications in this framework.
Configuring ViewModel Hierarchy
June 19, 2015
The correctly implemented ViewModel hierarchy in Ext 5.x MVVM applications provides for more robust, modularized and well-written large applications. Read this article to write big, yet maintainable, expandable and bugless applications.
Localization of Ext Applications
April 14, 2015
Do you need to localize your Ext application and feel that the standard way is not right for you? Read this article to find out other ways to implement translations.
On Software Architecture
April 11, 2015
Is the application architecture really that important for the development success? Read this article to find out.
Upgrading an existing ExtJS application
February 16, 2015
Are you planning to upgrade your application to newer version of ExtJS? Read this article to see how to start with UI analysis and what to write to the Design Document.
An Application Design Phase
January 20, 2015
Do you plan a new application or an upgrade of existing one? Read about the design phase of the project and learn what you must and must not do.
How to calculate size of your application
January 5, 2015
Have you ever been interested how many files your application consists of? Or how many lines have you and your developers have written in this app? Read to find how to easily count them.
How to confirm Ext window close
September 16, 2014
How do we use asynchronous Ext.Msg to confirm Ext window close? Find out.
Lightweight Theming
August 25, 2014
Theming in Ext does not need to be a difficult lot of work. It is very easy to implement color variations of an Ext theme, and that is sufficient for many projects anyway.
What is a Program
July 16, 2014
Although the word program is not very popular anymore, it still best explains that intangible part of computers, software, that is at least of the same importance than hardware. Find out more...
Errata: Remote Combo in ExtJS Grid Example
July 3, 2014
There was one piece of information missing in the source of this example: the grid columns configuration. I have added it in the comment, see it there.
Loading more classes in one file
June 26, 2014
You should not read this post. It describes a bad practice.
Single File ExtJS 5 Application w/o Sencha Cmd
June 24, 2014
Although Sencha Cmd is a very useful tool for application scaffolding, creating view, controllers and models, sometimes it is faster to use a single-file app. It is especially useful for fast testing, prototyping or concept proof. Read how to do it.
ExtJS 5 Grid Without Store
June 8, 2014
"Hey, Saki, wait a minute. You must be kidding. Grid must have a store; it is a required configuration option." Find out if and how it is possible to have an ExtJS 5 grid without store config option.
On ExtJS 5 Chained Stores
June 6, 2014
Chained Stores, introduced in ExtJS 5, allow to use one store in multiple views with independent filtering and sorting. This article discusses what they really are, what are drawbacks and it also provides a playground application that.
Ext Application Startup Sequence
June 1, 2014
The diagram in this article shows how the MVC Ext Application generated by sencha generate app initializes.
Ext Grid Renderer Danger
May 29, 2014
ExtJS grid renderers are the powerful tool that can, if used correctly, greatly enhance the user interface. However, you can run into several gotchas. This article demonstrates what problems can renderers introduce and explains how to avoid them.
What is an xtype
May 18, 2014
Although `xtype` has been around since Ext 2.0, there is still a lot of confusion on what it is, how can it be used and what it is good for. The clarification in this article gives you all information you need to use xtype (and other [a-z]types) effectively.
Using Calculated Fields in ExtJS and Sencha Touch
May 15, 2014
Calculated fields are fields that do not have their own values, but the values are calculated from the other fields of the same record. It is easiest to implement them in Model.
Ext/Touch Component Life Cycle
May 4, 2014
Knowing the phases of component life cycle is important for every developer. Learn what the phases are and what is happening in each of them.
Using Font Icons in Ext - FontAwesome
April 28, 2014
Don't you like 16x16 icons? Or they just do not look good on your Retina display anymore? Read this post to learn how to use Font Icons that are scalable, resolution independent and they always look good.
Embedding an Ext component in a page
April 25, 2014
There can be cases where we have an existing page and we just need to insert a grid, from or tree into it. The approach is very simple...
Blessing and Curse of refs
March 31, 2014
Controller config option **refs** provides an easy way to get refereneces to views within the controller. However, there's a catch. In some situations refs do not work as expected or cannot be used at all.
What is a computer?
March 25, 2014
Why should we even seek an answer to this question? Everybody knows. We use them every day, they're all around us and we cannot even imagine life without them. Well, you wouldn't believe how many people cannot give you a definition, even if they use computers all day long.
What is an Education?
March 21, 2014
Do you have a bad experience with formal education or education in general? Read this article to find out why and to know what the education really is.
How to add an IP address to loopback interface on Mac
November 21, 2010
It is sometimes necessary to have another loopback interface, for example to test https protocol on Mac. Read how to create it.
Ext Extension with Factory Functions File Pattern
September 21, 2010
This post describes how to write an Ext extension using factory functions.
Experience: Ext Component loading can be slow
September 12, 2010
A consulting week on an Ext app whose windows took four seconds to open. The cause was server-generated JavaScript instead of JSON; the rewrite got it to 500ms.
Factory Functions in Ext Extensions (Abstract Classes)
August 7, 2010
In essence, factory functions are class methods that *manufacture* items or other properties during the instantiation of the class. This article explains pros and cons of factory function and how to use them correctly.
Keeping modified records of EditorGridPanel while paging
September 28, 2009
If you modify records of an editable grid with paging and if you then page-out, your changes are lost. This article shows easy implementation of keeping modified records while paging.
Ext.ux.MsgBus Plugin
September 20, 2009
A publish/subscribe plugin for Ext components: dot-separated topics with wildcards, adding subscribe and publish to anything extending Ext.util.Observable.
What the hell is mon and mun?
September 18, 2009
Event listeners are installed by calling `on` method in Ext and Touch. However, there is also other possibility and that is calling `mon`. Read the article to find out what is the difference and what are benefits of mon/mun.
Mastering Ext.Direct, Part 3
September 17, 2009
You cannot use the return value of an API function call as result is not know at the moment of the call return. It is never stressed enough that Ext.Direct calls are ASYNCHRONOUS.
Mastering Ext.Direct, Part 2
September 7, 2009
This part focuses on server side of Ext.Direct giving some examples that are good as a starting point written in PHP.
Mastering Ext.Direct, Part 1
September 5, 2009
Rich Internet Applications (RIA) consist of two parts: client side and server side. Client cannot call server functions directly but sends requests, server processes them calling the appropriate functions and returns results back to client. Ext.Direct makes it look like we are calling server methods directly at client.
Factory Function File Pattern
March 17, 2009
You know, I'm not very big fan of factory functions, nevertheless, I'm aware of the fact that they may be necessary in some situations.
How to remove all children of a tree node
March 4, 2009
It is easy. Check it out.
What is an event?
May 18, 2008
Event are often misunderstood as to their origin, purpose and handling. You can find in-depth definition of events which knowledge gives you the potential ability to effectively use them in your applications whether small or large.
Which events are fired?
May 18, 2008
One console line — Ext.util.Observable.capture — logs every event a component fires, in order, so you can see what an interaction actually does.
Displaying 1:n Data in Grid
May 11, 2008
Imagine that you have a one-to-many relationship in your database, for example, you have table person in which you keep personal data (first, middle, last names, etc.) and you have table phone where you keep phone numbers (phone type, phone number). It is quite common to have person:phones, company:phones, order:items, invoice:items, etc relationships.
xtype defined
May 9, 2008
There has been a lot of confusion I have observed on the Ext Forums as to xtype. Some people ignore it fully, some think that it is what it is not. So I've decided to clarify it.
Extension or Plugin?
April 28, 2008
Should we code our special functionality we need to add to Ext or Touch as extension or as plugin? This article discusses differences and use cases of both approaches to give you all information you need for right decisions on the matter.
How to get permissons of a file/directory
April 22, 2008
If you want to see permissions of a file or a directory in both human readable and octal notation issue this command:
Array Overrides
April 17, 2008
Set methods JavaScript's Array lacked in 2008 — intersect, union, unique, copy — plus a deep clone and a conditional override for what the browser already has.
How to switch between Production and Development system
April 15, 2008
One file list drives both the switch and the Makefile: commented sources included one by one while you develop, a single compressed build in production.
Designing a 3 columns web page using TableLayout
April 4, 2008
One of the possibilities of designing 3 column layout.
How to build a Tree from static data
April 4, 2008
Building a tree from static data example
How to keep expanded state of Accordion items
April 4, 2008
This post shows how to implement stateful accordion.
Inline Anonymous Funcion Pattern
April 3, 2008
Inline Anonymous Funcion Pattern
Leading Comma or Trailing Comma: that is the question
April 3, 2008
This article discusses pros and cons of using leading or trailing commas in the code and it also explains why I have decided to use leading commas.
Button With Buffered Clicks
April 2, 2008
Users who double-click everything were adding two records at a time. One config fixes it: buffer the click listener so only the last click in 200ms runs.
Defer Inline Anonymous Function Pattern
April 2, 2008
See how to defer execution of an inline function.