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Questions tagged [extjs4]

Please use this tag in relation to ExtJS 4.0 - 4.2; Ext JS 4 is the fourth major version of the JavaScript library for building Rich Internet Applications (RIA), and now includes an MVC architecture without the need to use plugins. Sencha has already released ExtJS 4.1 which has some significant changes compared to the last stable 4.0.7 release.

Ext JS 4 is a major advancement in JavaScript framework. With expanded functionality, faster performance, and improved efficiency, you can create incredible web apps for every browser. The framework has become the final release since April 26th 2011.

Note: Sencha has already released ExtJs 4.1 which has some rather significant changes comparing to last stable 4.0.7 release. Please use this tag in relation to ExtJs 4.0.7.

There is extjs4.1 tag for questions related to ExtJs 4.1 release.

Links for Starters:

See for more information.

5584 questions
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ExtJS 4 difference between componentCls, cls and bodyCls?

In ExtJS 4, what's the difference between componentCls, cls and bodyCls ?
ABCD.ca
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Grid Panel Scrollbars in Extjs 4 not working

var gusersPanel = Ext.create('Ext.grid.Panel', { flex:1, columns: [{ header: 'User Login', dataIndex: 'user_login', width:150 },{ header: 'User Name', dataIndex: 'user_nicename', width:150 …
Pratik Mehta
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How to set auto height for extjs hbox layout?

i have this layout and once im setting some data dynamically layout doesn't resize and final result is like this this is the code im using win = Ext.create('widget.window', { title: 'Layout Window', closable: true, closeAction:…
Gihan Lasita
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Extjs 3 to Extjs 4

I want to migrate from extjs 3 to extjs 4. I have tested sample Extjs 4 example in rails 3. I have observed that page rendering time is very slow in extjs 4. I don't know what is the reason. Can anybody tell me, what is the reason behind that? or is…
Anand Soni
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How to add an ExtJs component at a specific position (index)?

I have a ToolBar with some components (TextFields and Buttons) and I would like to dynamically add a component (TextField, for example) before the other components. I tried tbBar.add(myComponent); without success. Any idea?
Roberto Schuster
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Extjs syncing a store gives me a url is undefined error under specific conditions

I have 4 grids that have the drag and drop plugin enabled. Their initial grid is dependent on a value from the db called state_id. When I drop the selected row into a new grid, I update the state_id value and then tell it to sync up with the db and…
RoboKozo
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How to prevent extjs grid from scrolling when clicking on a cell?

I am currently using the grid component with Extjs 4 based on the editable grid example. I would like to have a link associated with each cell so that when I click on a cell it takes me to another page. However, when there is a vertical scroll that…
user465374
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Download previous versions of ExtJs

Where can previous versions of Extjs can be downloaded from ? Specifically I would like to get extjs-4.1.1a and btw what is up with the 'a' is this different from extjs-4.1.1?
code4jhon
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ExtJS 4: Is there any way to attach a QuickTip to a form field?

I'm trying to add a QuickTip to a form field, but can't find a way to make my code work. Firstly, I tried to use a qtip attribute { fieldLabel: 'Last Name', qtip:'This tip is not showing at all', name: 'last' } and…
cansadadeserfeliz
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How to send extra parameters when loading a store to a combobox in ExtJS 4?

How do I send extra parameters when using a store for a combobox in ExtJS 4? I know that I can use "extraParams" in the proxy-settings, but that will affect ALL elements that is using the same store. I.e if I have a Grid that is using a store called…
Daniele Testa
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ExtJS and Complex Save Operations

ExtJS 4.1.0 Update 6/6/13: I have posted this same question on the Sencha forums where there hasn't been much action. The post is more or less the same, but I figured I would add it here just for reference. I am still eager to hear other community…
John Hall
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How to disable action column item for a single row?

Consider this JSON sample : [{id:1,editable:true},{id:2,editable:false}] These records are about to be loaded in a store, then displayed inside a grid panel. This grid has an action column item for edition purposes. I'm looking for a way to disable…
user1636522
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How to create hyper link in ExtJS 4?

I am working in ExtJS 4.I have been getting stuck at a point where I have to create a hyperlink in ExtJS 4.I have been searching a lot for creating hyperlink in ExtJS 4 but I did not get any solution for it.Actually I have to create a hyperlink and…
Pravin Mane
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How to set the default value of datafield - EXTJS 4

var startdt = Ext.create('Ext.form.DateField',{ fieldLabel: 'Start Date', name: 'startdt', id: 'startdt', vtype: 'daterange', format: 'd/m/Y', endDateField: 'enddt', // id of the end date field value = new date() …
user1972227
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Explain MVC architecture of extjs

I created a small sudoku app using Javascript. Now I am trying to convert that javascript code into extjs (4.1.1a) code. I have gone through the docs to understand the MVC Architecture, but it seemed not so detailed for me as I am a beginner. Can…
Mr_Green
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