$grid = $dg.datagrid({

               // fit: true,

                //fitColumns: true,

               // pagination: false,

              //  pageSize: 20,

               // pageList: [20, 40, 60, 80, 100],

                showFooter:true,

                scrollbarSize:0,

                border: true,

                striped: true,

                singleSelect: false,

                selectOnCheck: true,

                checkOnSelect: true,

                remoteSort:false,

                rownumbers : false,//不显示序号

                method:'get',

                columns: [[{field: 'companyname', title: '经销商名称', width: parseInt($(this).width() * 0.2)},

                    {field: 'goodscount', title: '新增sku数', width: parseInt($(this).width() * 0.1),sortable:true,sorter:numberSort},

                    {field: 'upgoodscount', title: '在售sku数', width: parseInt($(this).width() * 0.1),sortable:true,sorter:numberSort},

                    {field: 'goodsSaleCount', title: '下单商品数', width: parseInt($(this).width() * 0.1),sortable:true,sorter:numberSort}

                ]],

                onBeforeLoad: function (param) {

                    try {

                        let row = $(this).datagrid('getSelected');

                        let index = $(this).datagrid('getRowIndex', row);

                        row_key = index;

                    } catch (err) {

                        console.log(err);

                    }

                },

                onClickCell: function (index, field, value) {

                    $(this).datagrid('clearSelections');

                },

                onLoadSuccess: function (data) {

                    $(this).datagrid('checkRow', row_key);

                },

                toolbar: '#tb'

            });

{"total":9,"rows":[

{"id":1,"name":"Chai","price":18.00},

{"id":2,"name":"Chang","price":19.00},

{"id":3,"name":"Aniseed Syrup","price":10.00},

{"id":4,"name":"Chef Anton's Cajun Seasoning","price":22.00},

{"id":5,"name":"Chef Anton's Gumbo Mix","price":21.35},

{"id":6,"name":"Grandma's Boysenberry Spread","price":25.00},

{"id":7,"name":"Uncle Bob's Organic Dried Pears","price":30.00},

{"id":8,"name":"Northwoods Cranberry Sauce","price":40.00},

{"id":9,"name":"Mishi Kobe Niku","price":97.00}

],"footer":[

{"name":"Total","price":282.35},

{"name":"Average","price":31.37}

]}