求指导Ext。grid的分页、锁定列的问题

cpu220 2013-06-18 06:24:21

先上代码



Ext.Loader.setConfig({enabled: true});



Ext.Loader.setPath('Ext.ux', '../ux/');



Ext.require([

    'Ext.data.*',

    'Ext.grid.*',

    'Ext.util.*',

    'Ext.state.*',

    'Ext.ux.data.PagingMemoryProxy',

    'Ext.toolbar.Paging',

    'Ext.ux.SlidingPager' 

]);



Ext.onReady(function(){ 

	var myData = [

	              ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],

	              ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],

	              ['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],

	              ['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],

	              ['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],

	              ['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],

	              ['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],

	              ['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],

	              ['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],

	              ['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],

	              ['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],

	              ['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],

	              ['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],

	              ['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],

	              ['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],

	              ['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],

	              ['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],

	              ['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],

	              ['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],

	              ['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],

	              ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],

	              ['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],

	              ['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],

	              ['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],

	              ['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],

	              ['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],

	              ['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],

	              ['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],

	              ['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']

	          ];

	          

	        

	          // 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;

	          }



	          // register model

	          Ext.define('Company', {

	              extend: 'Ext.data.Model',

	              idProperty: 'company',

	              fields: [

	                 {name: 'company'},

	                 {name: 'price', type: 'float'},

	                 {name: 'change', type: 'float'},

	                 {name: 'pctChange', type: 'float'},

	                 {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}

	              ]        

	          });

	          

	         

	          // create the data store

	          var store = Ext.create('Ext.data.Store', {

	              model: 'Company',

	              remoteSort: true,

	              pageSize: 10,

	              autoLoad:false,

	              

	                 proxy: {

	                  type: 'pagingmemory',

	                  data: myData,

	                  reader: {  type: 'array'  }

	              } 

	          });

	          var pagingToolbar=new Ext.PagingToolbar({ 

	              store: store,

	              displayInfo: true, 

	              emptyMsg: '没有数据', 

	              displayMsg: '当前显示{0}-{1}条记录 / 共{2}条记录 ',

	              beforePageText: '第',

	              afterPageText: '页/共{0}页'   

	         });

	         

	          var grid = Ext.create('Ext.grid.Panel', {

	              title:'测试页面',

	              store: store, 

	              width:600, 

	              selModel: new Ext.selection.CheckboxModel, //添加checkbox列

	              columns: [ 

	                  { 

	                  	id:'company',    

	                  	text     : 'Company Name',  

   locked   : true,////为什么添加这个就会报错

	                  	dataIndex: 'company',  

	                  	width:150, 

	                  	flex: 1 },

	                  { 

	              		text: 'Price',  

	              		sortable: true,  

	              		renderer: 'usMoney', 

	              		dataIndex: 'price', 

	              		width: 75 

	                  		},

	                  { 

	          			text: 'Change', 

	          			sortable: true, 

	          			renderer: change, 

	          			dataIndex: 'change', 

	          			width: 75

	                  },

	                  { 

	                  	text: '% Change',  

	                  	sortable: true, 

	                  	renderer: pctChange, 

	                  	dataIndex: 'pctChange',  

	                  	width: 75  

	                  	},

	                  { 

	                  	text: 'Last Updated', 

	                  	sortable: true, 

	                  	dataIndex: 'lastChange',

	                  	renderer : Ext.util.Format.dateRenderer('m/d/Y'), 

	                  	width: 175  

	                  	}

	                  ], 

	              bbar: pagingToolbar,

	              renderTo:'demo' 

	          }); 

	          store.load();

});