今天上午折腾了一上午，终于把grid控件的打印功能做完了，代码如下所示：

1 var record;   2 function viewScore(){
      3     var selections=Ext.getCmp('projectGrid').getSelectionModel().getSelections();   4     if(selections.length>0){
      5         record=selections[0];   6         var viewScoreWin=Ext.getCmp('viewScoreWin');   7         if(!viewScoreWin){
      8             viewScoreWin = new Ext.Window({
      9                 id: 'viewScoreWin',  10                 title: '查看项目评分',  11                 width: 1000,  12                 height: 350,  13                 closable: true,  14                 layout: 'fit',  15                 closeAction: 'close',  16                 plain: true,  17                 modal: true,  18                 iconCls: 'vcard_update',  19                 bodyStyle: 'padding:5px;',  20                 buttonAlign: 'center',  21                 buttons: [{
     22                     text: '刷新',  23                     handler: function() {
     24                         getProjectScoreStore(record.data.Id).reload();  25                     }  26                 },  27                 {
     28                     text:'打印',  29                     handler:printGrid  30                 }  31                 ],  32                     items: {
     33                         xtype: 'panel',  34                         border: false,  35                         frame: false,  36                         baseCls: 'x-plain',  37                         items: [{
     38                             xtype: 'box',  39                             autoEl: {
     40                                 tag: 'div',  41                                 height: 20,  42                                 id: 'averageScore' + record.data.Id,  43                                 html: '平均价: ' + round2(getProjectScoreStore(record.data.Id).averageScore, 4),  44                                 style: 'text-align:center;font-size:16px;font-weight:bold;line-height:20px;'  45                             }  46                         }, {
     47                             xtype: 'grid',  48                             height: 250,  49                             border: false,  50                             viewConfig: { forceFit: true },  51                             autoFill: true,  52                             id: 'projectScoreGrid',  53                             viewConfig:{forceFit:true},  54                             store: getProjectScoreStore(record.data.Id),  55                             cm: new Ext.grid.ColumnModel({
     56                                 columns: [  57                                 new Ext.grid.RowNumberer(),  58                                 { header: '专家', dataIndex: 'UserName' },  59                                 {
     60                                     header: '评分',  61                                     dataIndex: 'Score',  62                                     renderer: function(v) {
     63                                         if (v) {
     64                                             return round2(v, 4)  65                                         } else {
     66                                             return ''  67                                         }  68                                     }  69                                 },  70                                 { header: '日期', dataIndex: 'Date', renderer: Ext.util.Format.dateRenderer('Y-n-j') },  71                                 { header: '土地级别', dataIndex: 'LandLevel' },  72                                 { header: '土地用途', dataIndex: 'LandUse' },  73                                 { header: '区段地价', dataIndex: 'DistrictLandPrice' },  74                                 { header: '用途修正', dataIndex: 'UseAmend' },  75                                 { header: '期日修正', dataIndex: 'DateAmend' },  76                                 { header: '容积率修正', dataIndex: 'PlotRatioAmend' },  77                                 { header: '年期修正', dataIndex: 'YearAmend' },  78                                 { header: '个别因素修正', dataIndex: 'SingleAmend' },  79                                  80                                 { header: '开发程度修正', dataIndex: 'DeveloperLevelAmend'}  81                             ]  82                             }),  83                             sm: new Ext.grid.RowSelectionModel({ singleSelect: true })  84                         }]  85                         }  86                     });  87         }  88         viewScoreWin.show();  89     }else{
     90         Ext.MessageBox.alert('提示','请选择一个要查看的项目');  91     }  92 }  93 function printGrid() {
     94     var gridcontrol = Ext.getCmp('projectScoreGrid');  95     var tableStr = '
      
         '; 109     for (var i = 0; i < temp_obj.length; i++) {
    110         tableStr = tableStr + '
'; 111     } 112     tableStr = tableStr + '
'; 113     var store = gridcontrol.getStore(); 114     var recordCount = store.getCount(); 115     for (var i = 0; i < recordCount; i++) {
    116         var r = store.getAt(i); 117         for (var j = 0; j < temp_obj.length; j++) {
    118             var dateIndex = cm.getDataIndex(temp_obj[j]); 119             var tdvalue = r.get(dateIndex); 120             var renderFunc = cm.getRenderer(temp_obj[j]); 121             if (renderFunc != null) {
    122                 tdvalue = renderFunc(tdvalue); 123             } 124             if (tdvalue == null) {
    125                 tdvalue = ''; 126             } 127             tableStr = tableStr + '
'; 128         } 129         tableStr = tableStr + '
'; 130     } 131     tableStr = tableStr + '
';  96     var cm = gridcontrol.getColumnModel();  97     var colCount = cm.getColumnCount();  98     var temp_obj = new Array();  99     for (var i = 1; i < colCount; i++) {
    100         if (cm.isHidden(i) == 101          true) {
    102 103         } 104         else {
    105             temp_obj.push(i); 106         } 107     } 108     tableStr = tableStr + '平均价:' + round2(getProjectScoreStore(record.data.Id).averageScore, 4)+'
' + cm.getColumnHeader(temp_obj[i]) + '
' + tdvalue + '
'; 132     var titleHtml = tableStr; 133     var newwin = window.open('printer.html', '', ''); 134     newwin.document.write(titleHtml); 135     newwin.document.location.reload(); 136     newwin.print(); 137     newwin.close(); 138     139 }