//动态表头配置

    var arrays = [];

    var columnFileds = $("#contractNoList").datagrid("getColumnFields");

    for (var i = 0; i < columnFileds.length; i++) {

        var opt = $("#contractNoList").datagrid("getColumnOption", columnFileds[i]);

        arrays.push({ field: opt.field, title: opt.title, width: 120, hidden: false, checkbox: opt.field == 'ck' ? true : false });

    }

    var columnsArray = [];

    columnsArray.push(arrays);

    $("#uploadProductDiv").dialog('open');

    $('#preUploadFile').datagrid({

        sortName: 'pcode',

        sortOrder: 'asc',

        nowrap: true,

        fitColumns: true,

        striped: true,

        collapsible: true,

        pageList: [10, 15, 30],

        singleSelect: true,

        columns: columnsArray

    });