EasyUI-导出Datagrid数据到csv

function ExportToXls(gridName,csvName){
var data = JSON.stringify($("#"+gridName).datagrid('getData').rows);
//alert(data);
if (data == '')
return;

    JSONToCSVConvertor(data, csvName, true);
}
function JSONToCSVConvertor(JSONData, ReportTitle, ShowLabel) {
//如果JSONData 不是json对象，就把JSONData 转换为json对象
var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData): JSONData;

var CSV = '';
    CSV += ReportTitle + '\r\n\n';
if (ShowLabel) {
var row = "";
for ( var index in arrData[0]) {
            row += index + ',';
        }
        row = row.slice(0, -1);
        CSV += row + '\r\n';
    }
for (var i = 0; i < arrData.length; i++) {
var row = "";
for ( var index in arrData[i]) {
            row += '"' + arrData[i][index] + '",';
        }
        row.slice(0, row.length - 1);
        CSV += row + '\r\n';
    }

if (CSV == '') {
        alert("Invalid data");
return;
    }

//文件名
var fileName = "MyReport_";
    fileName += ReportTitle.replace(/ /g, "_");

var uri = 'data:text/csv;charset=utf-8,' + escape(CSV);


var link = document.createElement("a");
    link.href = uri;


    link.style = "visibility:hidden";
    link.download = fileName + ".csv";


    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
}