#know-how
30 posts tagged “know-how”.
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 confirm Ext window close
September 16, 2014
How do we use asynchronous Ext.Msg to confirm Ext window close? Find out.
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 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.
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.
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...
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.
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.
How to remove all children of a tree node
March 4, 2009
It is easy. Check it out.
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.
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.
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.