Ext grid checkbox 分页 翻页 勾选 问题 

 1          timeArray = new Array();    //临时数组变量
 2     var timeStatusBar = new Ext.ux.StatusBar({
 3             id: 'statusbar',
 4             defaultText: '选择时间列表',
 5     });     
 6     var timeSelectModel = new Ext.grid.CheckboxSelectionModel({
 7         checkOnly:true,
 8         singleSelect:false,
 9         listeners:{
10             rowselect:function(sm, rowIndex, record){  //选择事件，将time添加到timeArray中
11                 var time = record.data.time;                
12                 if (!ArrayContains(timeArray, time)){
13                 //timeArray中没有存储time，则添加到timeArray中
14                     var link = '<a href="javascript:removeTime_result('+time+')"><img src="/NetMonitor/Images/common/delete.gif"/></a>';
15                     ArrayAppendDesc(timeArray, time, [time, link]);
16                     timeStore_result.loadData(timeArray);                    
17                 }
18                 
19             },
20             rowdeselect:function(sm, rowIndex, record){  //取消选择事件,从timeArray中移除出去
21                 //临时变量中存储了这个time,则从timeArray中移除出去
22                 var time = record.data.time;            
23                 ArrayRemove(timeArray, time);
24                 timeStore_result.loadData(timeArray);                
25             }
26         }
27     });
28     var timeColumnModel = new Ext.grid.ColumnModel([
29         {  header:'时间选择列表',dataIndex:'time',width:200,align:'center'},
30         timeSelectModel
31     ]);
32     var timeRecordType = Ext.data.Record.create([{name:'time'}]);
33     var timeStore = new Ext.data.Store({
34         id:'timeStore',
35         proxy:new Ext.data.DWRProxy(ExcelDaoService.getGridTime_ExcelDao,false),
36         reader:new Ext.data.ListRangeReader({
37             root:'data',
38             totalProperty:'totalSize'
39         },timeRecordType)
40         ,
41         listeners:{
42             beforeload:function(){
43                 timeStore.baseParams = {table:table};    
44             },
45             load:function(){                                        //加载的时候，根据临时变量timeArray勾选
46                 var records = new Array();
47                 timeStore.each(function(record){
48                     for(var i=0; i<timeArray.length; i++){
49                         if(timeArray[i][0] == record.data.time){
50                             records.push(record);
51                         }                        
52                     }
53                 });            
54                 timeSelectModel.selectRecords(records, true);
55             }
56         },
57         remoteSort:true
58     });
59 
60     var pageTBar=new Ext.PagingToolbar({
61         id:'pagingTbr',
62         pageSize: 20,
63         store:timeStore,
64         afterPageText:'共{0}页',
65         beforePageText:"当前页",
66         lastText:"尾页",
67         nextText:"下一页",
68         prevText:"上一页",
69         firstText:"首页"
70     });
71     var timeGrid = new Ext.grid.GridPanel({
72         id:'timeGrid',
73         tbar:timeStatusBar,
74         bbar:pageTBar,
75         cm:timeColumnModel,
76         sm:timeSelectModel,
77         store:timeStore,
78         autoScroll:true,
79         stripeRows:true,
80         height:540
81     });
View Code

Ext grid checkbox在翻页的过程中，会碰到之前勾选的数据，无法记录的情况，这时就应该使用一个临时array变量存储勾选的值，然后在grid每次load的时候，把每行数据与该array变量进行遍历判断，这样就能实现翻页保持勾选数据的效果。

posted on 2014-01-20 18:23  dancser  阅读(601)  评论(0)  编辑  收藏  举报