实现easyui的datagrid导出为excel的示例代码

// 载入title
if (typeof columns != 'undefined' && columns != '') {
$(columns).each(function (index) {
tableString += '\n<tr>';
if (typeof frozenColumns != 'undefined' && typeof frozenColumns[index] != 'undefined') {
for (var i = 0; i < frozenColumns[index].length; ++i) {
if (!frozenColumns[index][i].hidden) {
tableString += '\n<th width="' + frozenColumns[index][i].width + '"';
if (typeof frozenColumns[index][i].rowspan != 'undefined' && frozenColumns[index][i].rowspan > 1) {
tableString += ' rowspan="' + frozenColumns[index][i].rowspan + '"';
}
if (typeof frozenColumns[index][i].colspan != 'undefined' && frozenColumns[index][i].colspan > 1) {
tableString += ' colspan="' + frozenColumns[index][i].colspan + '"';
}
if (typeof frozenColumns[index][i].field != 'undefined' && frozenColumns[index][i].field != '') {
nameList.push(frozenColumns[index][i]);
}
tableString += '>' + frozenColumns[0][i].title + '';
}
}
}
for (var i = 0; i < columns[index].length; ++i) {
if (!columns[index][i].hidden) {
tableString += '\n<th width="' + columns[index][i].width + '"';
if (typeof columns[index][i].rowspan != 'undefined' && columns[index][i].rowspan > 1) {
tableString += ' rowspan="' + columns[index][i].rowspan + '"';
}
if (typeof columns[index][i].colspan != 'undefined' && columns[index][i].colspan > 1) {
tableString += ' colspan="' + columns[index][i].colspan + '"';
}
if (typeof columns[index][i].field != 'undefined' && columns[index][i].field != '') {
nameList.push(columns[index][i]);
}
tableString += '>' + columns[index][i].title + '';
}
}
tableString += '\n</tr>';
});
}
// 载入内容
var rows = printDatagrid.datagrid("getRows"); // 这段代码是获取当前页的所有行
for (var i = 0; i < rows.length; ++i) {
tableString += '\n<tr>';
for (var j = 0; j < nameList.length; ++j) {
var e = nameList[j].field.lastIndexOf('_0');

  tableString += '\n<td';
  if (nameList[j].align != 'undefined' && nameList[j].align != '') {
    tableString += ' style="text-align:' + nameList[j].align + ';"';
  }
  tableString += '>';
  if (e + 2 == nameList[j].field.length) {
    tableString += rows[i][nameList[j].field.substring(0,e)];
  }
  else
    tableString += rows[i][nameList[j].field];
  tableString += '</td&gt;';
}
tableString += '\n</tr&gt;';

}
tableString += '\n</table>';
return tableString;
}

function Export(strXlsName,exportGrid) {
var f = $('<form action="/export.aspx" method="post" id="fm1">');
var i = $('');
var l = $('');
i.val(ChangeToTable(exportGrid));
i.appendTo(f);
l.val(strXlsName);
l.appendTo(f);
f.appendTo(document.body).submit();
document.body.removeChild(f);
}

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