array-grid.js

纯JS的数据列表 6000行数据 需要9秒

/*
 * Ext JS Library 2.0 Beta 1
 * Copyright(c) 2006-2007, Ext JS, LLC.
 * [e-mail]
 * 
 * http://extjs.com/license
 */

Ext.onReady(function(){

    Ext.state.Manager.setProvider(new Ext.state.CookieProvider());

    var myData=allTestData.splice(0,window._fins_testDataNum);


    var ds = new Ext.data.Store({
        reader: new Ext.data.ArrayReader({}, [
               {name: 'company'},
               {name: 'price', type: 'float'},
               {name: 'change', type: 'float'},
               {name: 'pctChange', type: 'float'},
               {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
          ])
    });
    ds.loadData(myData);

    // example of custom renderer function
    function italic(value){
        return '<i>' + value + '</i>';
    }

    // example of custom renderer function
    function change(val){
        if(val > 0){
            return '<span style="color:green;">' + val + '</span>';
        }else if(val < 0){
            return '<span style="color:red;">' + val + '</span>';
        }
        return val;
    }
    // example of custom renderer function
    function pctChange(val){
        if(val > 0){
            return '<span style="color:green;">' + val + '%</span>';
        }else if(val < 0){
            return '<span style="color:red;">' + val + '%</span>';
        }
        return val;
    }

    // the DefaultColumnModel expects this blob to define columns. It can be extended to provide
    // custom or reusable ColumnModels
    var colModel = new Ext.grid.ColumnModel([
        {id:'company',header: "Company", width: 160, sortable: true, locked:false, dataIndex: 'company'},
        {header: "Price", width: 75, sortable: true, renderer: Ext.util.Format.usMoney, dataIndex: 'price'},
        {header: "Change", width: 75, sortable: true, renderer: change, dataIndex: 'change'},
        {header: "% Change", width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
        {header: "Last Updated", width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
    ]);


    // create the Grid
    var grid = new Ext.grid.GridPanel({
        el:'grid-example',
        ds: ds,
        cm: colModel,
        autoExpandColumn: 'company',
        height:350,
        width:600,
        title:'Array Grid'
    });

    grid.render();

    grid.getSelectionModel().selectFirstRow();
});