首先定义如下JS文件：
Ext.Excel = function(config){
//Ext.Excel.superclass.constructor.call(this, config);
Ext.apply(this,config);
};
Ext.apply(Ext.Excel.prototype,{
extGridToExcel : function(){
try{
if(Ext.getCmp(this.gridId)){
var oXL = new ActiveXObject("Excel.Application");
var oWB = oXL.Workbooks.Add();
var oSheet = oWB.ActiveSheet;
var grid = Ext.getCmp(this.gridId);
var store = grid.getStore();
var recordCount = store.getCount();
var view = grid.getView();
var cm = grid.getColumnModel();
var colCount = cm.getColumnCount();
var temp_obj = [];
for(var i = 0; i < colCount;i++){
if(cm.isHidden(i)){
}else{
temp_obj.push(i);
}
for(var i = 1; i <= temp_obj.length;i++){
oSheet.Cells(1,i).value = cm.getColumnHeader(temp_obj[i - 1]);
for(var i = 1 ; i <= recordCount; i++){
for(var j = 1; j<= temp_obj.length; j++){
oSheet.Cells(i+1,j).value = view.getCell(i-1,temp_obj[j-1]).innerText;
}
if(this.sheetName){
oSheet.Name = this.sheetName;
oXL.UserControl = true;
oXL.Visible = true;
}else{
Ext.Msg.alert('Error','明细数据grid没有创建成功！');
return;
}catch(e){
if(Ext){
Ext.Msg.show({
title:'提示',
msg:'请设置IE的菜单\'工具\'->Internet选项->安全->自定义级别->\'对未标记为可安全执行脚本ActiveX控件初始化
并执行脚本\'->选择[启用] 就可以生成Excel',
buttons:Ext.Msg.OK,
icon:Ext.Msg.INFO
}else{
alert('不支持ExtJs框架');
return;
}
});
buttons:[{ text:'导出Excel',
handler:function() {
var excel = new Ext.Excel({gridId:'datagrid',sheetName:'中期生产计划--逆排'});
excel.extGridToExcel();
}]
