Extjs4 Treegrid 使用心得分享(经验篇)

/* This file is part of Ext JS 4 Copyright (c) 2011 Sencha Inc Contact: http://www.sencha.com/contact GNU General Public License Usage This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html. If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact. */ Ext.require([ 'Ext.data.*', 'Ext.grid.*', 'Ext.tree.*' ]); Ext.onReady(function() { //we want to setup a model and store instead of using dataUrl Ext.define('Task', { extend: 'Ext.data.Model', fields: [ {name: 'task', type: 'string'}, {name: 'user', type: 'string'}, {name: 'duration', type: 'string'} ] }); var store = Ext.create('Ext.data.TreeStore', { model: 'Task', proxy: { type: 'ajax', //the store will get the content from the .json file url: 'treegrid.json' }, folderSort: true }); //Ext.ux.tree.TreeGrid is no longer a Ux. You can simply use a tree.TreePanel var tree = Ext.create('Ext.tree.Panel', { title: 'Core Team Projects', width: 500, height: 300, renderTo: 'tree-example',//2B的官方和SV党们，这里竟然是getbody，bo你妹啊。 collapsible: true, useArrows: true, rootVisible: false, store: store, multiSelect: true, singleExpand: true, //the 'columns' property is now 'headers' columns: [{ xtype: 'treecolumn', //this is so we know which column will show the tree text: 'Task', flex: 2, sortable: true, dataIndex: 'task' },{ //we must use the templateheader component so we can use a custom tpl xtype: 'templatecolumn', text: 'Duration', flex: 1, sortable: true, dataIndex: 'duration', align: 'center', //add in the custom tpl for the rows tpl: Ext.create('Ext.XTemplate', '{duration:this.formatHours}', { formatHours: function(v) { if (v < 1) { return Math.round(v * 60) + ' mins'; } else if (Math.floor(v) !== v) { var min = v - Math.floor(v); return Math.floor(v) + 'h ' + Math.round(min * 60) + 'm'; } else { return v + ' hour' + (v === 1 ? '' : 's'); } } }) },{ text: 'Assigned To', flex: 1, dataIndex: 'user', sortable: true }] }); });