EasyUI 获取行ID,符合条件的添加样式

function GetTableTrID()
{
var p = $('#PreFixgrid').prev().find('div table:eq(1)');
var ID = $(p).find('tbody tr:first').attr('id');
if (ID != undefined && ID != '' && ID.length > 3) {
ID = ID.toString().substr(0, ID.toString().length - 1);
}
return ID;
}

function returnGoods()
{
var listgrid = $('#listGrids');
var data = listgrid.datagrid('getData');
var listrows = $('#PreFixgrid').datagrid('getRows');
if (data.rows.length>0)
{ for (var i=0;i<data.rows.length;i++)
{ if (listrows.length > 0) { for (var j = 0; j < listrows.length; j++) { if (data.rows[i].Serialnumber == listrows[j].serialnumber) {
$('#'+GetTableTrID() + j.toString()).addClass('linedelete')
}
}
} }
}
}