extjs4

问题 Please, help. I want to show my displayValue in the Grid. I found the solution here, but I can't understand how use it. My code: columns:[...,{ header: 'Product', id: 'combo', locked: true, dataIndex: 'prod_id', editor: { xtype: 'combobox', store: new Ext.data.Store({ fields: ['value','display'], data: prod_list }), displayField: 'display', valueField: 'value' } },...] Solution Ext.util.Format.comboRenderer = function(combo){ return function(value){ var record = combo.findRecord(combo

问题 I've been using the ExtJS grid row editing plugin pretty liberally for CRUD operations in web applications. Now, I have a requirement to allow a database record to be edited along with a related collection/array (from another datastore) using this row editing plugin. To do this I want to insert drag-n-drop grids inside of a row that has been selected for editing, one grid showing the available (unused) collection items on the left and another grid to hold the defined collection items on the

问题 Suppose I am extending a standard Sencha ExtJS 4 widget/component, and I found a bunch of things that don't work the way I want them to, or perhaps they are just broken and Sencha hasn't gotten around to fixing the issues with the component yet. I'm just going to use the Sencha ExtJS Ext.tree.Panel and Ext.tree.Store as two example components. What are the most basic steps to overriding the constructor, configs, properties, methods and events so I can find and fix the issues with that

问题 In the code (I use MVC model if it matters), to get a specific elements, I use refs. refs: [ { ref: 'window', selector: 'windowName' }, { ref: 'windowButton', selector: 'windowName button[name=buttonName]' }, { ref: 'windowCombo', selector: 'windowName combo[name=comboName]' } ] Is this the right choice to get an elements? Or I have to use getCmp() or something else? 回答1: Here are some tips on targeting a component in an app. First of all be very careful using IDs on the components. I have

问题 I'm looking for a way to handle the key in the Grid. I've closely followed the examples here: http://www.sencha.com/learn/architecting-your-app-in-ext-js-4-part-1 http://www.sencha.com/learn/architecting-your-app-in-ext-js-4-part-2 http://www.sencha.com/learn/the-mvc-application-architecture/ So now everything works fine, but I'd like to handle keys in my Grid. So I guess in the declaration " this.control({}) " I should just add another event concerning userlist but it seems Grid don't have

问题 In ExtJS 4, selecting a row in a Grid Panel (by clicking it), and pressing the spacebar selects and de-selects the row. It was not like this in ExtJS 3, and I would like to disable this feature. Any ideas? I've begin looking into Ext.util.KeyMap to see if I could override it somehow. Thanks in advance. 回答1: You have to override the onKeyPress method of the the Ext.selection.RowModel . The shipped implementation is onKeyPress: function(e, t) { if (e.getKey() === e.SPACE) { e.stopEvent(); var

问题 I ask this because there is an existing application that I would like to enable for using Sencha CMD so first step is to instantiate it via: Ext.Application which presents the first problem: folder structure is someApp --Views --Model --Store --moreFolders (should be model, store, view) Rather than refactoring hundreds of classes(huge app) I want to set the folders path if possible. Can you think in any drawbacks? What would your approach be? Any ideas are very well received. Using ExtJs 4.1

问题 I ask this because there is an existing application that I would like to enable for using Sencha CMD so first step is to instantiate it via: Ext.Application which presents the first problem: folder structure is someApp --Views --Model --Store --moreFolders (should be model, store, view) Rather than refactoring hundreds of classes(huge app) I want to set the folders path if possible. Can you think in any drawbacks? What would your approach be? Any ideas are very well received. Using ExtJs 4.1

问题 I'm using ExtJS 4.1 MVC and I need to perform some actions after user click Enter button. I did it this way: Ext.getDoc().on('keypress', function(event, target) { me._enterKeyHandler(event, target, me); }); But I wonder if somehow I can use Ext.util.KeyMap in Container. In Sencha docs I found something and tried, but it didn't work for me. var map = new Ext.util.KeyMap({ // in target I tried: Ext.getCmp('myComponent'), "myComponent", myComponentVar target: "my-element", key: Ext.EventObject

问题 I want to add event listener to plugin on Controller.like http://docs.sencha.com/ext-js/4-1/#!/api/Ext.app.Controller It seems different to get plugin using component query than normal component. Is it possible to get plugin from component using component query? Here is my component Ext.define('App.view.file.List',{ rootVisible: false, extend:'Ext.tree.Panel', alias:'widget.filelist', viewConfig: { plugins: { ptype: 'treeviewdragdrop', allowParentInsert:true } }, //etc ... Can i get