array-grid.js

来自「纯JS的数据列表 6000行数据 需要9秒」· JavaScript 代码 · 共 82 行

/*
 * Ext JS Library 1.1.1
 * Copyright(c) 2006-2007, Ext JS, LLC.
 * [e-mail]
 * 
 * http://www.extjs.com/license
 */

var Example = {
    init : function(){
        // some data yanked off the web
// -5
var myData= allTestData.splice(0,window._fins_testDataNum);
        var ds = new Ext.data.Store({
		        proxy: new Ext.data.MemoryProxy(myData),
		        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.load();

		// 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.Grid('grid-example', {
            ds: ds,
            cm: colModel,
            autoExpandColumn: 'company'
        });
        
        var layout = Ext.BorderLayout.create({
            center: {
                margins:{left:3,top:3,right:3,bottom:3},
                panels: [new Ext.GridPanel(grid)]
            }
        }, 'grid-panel');

        grid.render();
        

        grid.getSelectionModel().selectFirstRow();

    }
};
Ext.onReady(Example.init, Example);