jquery - 如何在 jqGrid 中选择数据行

Question

我是 jqGrid 的初学者，我在页面中有 2 个 jqGrid，在 Grid1 中我有 inCustom 和 OutCustom 我希望用户在 Grid 中单击获取数据 inCustom 和 outCustom 编写此代码

var grid = $('#list');
grid.jqGrid({
    url: 'jQGridHandler.ashx',
    postData: { ActionPage: 'ClearanceRequest', Action: 'Fill' },
    ajaxGridOptions: { cache: false },
    loadonce: true,
    direction: "rtl",
    datatype: 'json',
    height: 600,
    width: 1000,
    colNames: ['', '', '', ' ', '', '', '', '', '',
               '', '', ' ', '', '', '', '', '', '',
               '', ' ', '', '', '', '',
               '', '', '', '', '', '', ' ',
               '', '', '', '', '', ''],
    colModel: [
        { name: 'REQUEST_ID', width: 100, sortable: true, hidden: true },
        { name: 'REQUEST_DATE', width: 50, sortable: true },
        { name: 'REQUEST_NO', width: 60, sortable: true },
        { name: 'CUSTOMER_ID', width: 100, sortable: true },
        { name: 'TRANSPORT_TYPE', width: 40, sortable: true },
        { name: 'CLEARANCE_TYPE', width: 50, sortable: true },
        { name: 'IMPORT_EXPORT', width: 30, sortable: true, editable: false,
            edittype: 'checkbox', editoptions: { value: "True:False" },
            formatter: "checkbox", formatoptions: { disabled: false }, hidden: true
        },
        { name: 'WAYBILL_NO', width: 50, sortable: true },
        { name: 'WAYBILL_OFFICE', width: 100, sortable: true },
        { name: 'MANIFEST', width: 200, sortable: true, hidden: true },
        { name: 'STORE_BILL', width: 100, sortable: true, hidden: true },
        { name: 'DIRECT_NO', width: 100, sortable: true, hidden: true },
        { name: 'STORE_DATE', width: 100, sortable: true, hidden: true },
        { name: 'INOUT_DATE', width: 50, sortable: true, hidden: true },
        { name: 'SOURCE_COUNTRY', width: 30, sortable: true, hidden: true },
        { name: 'SOURCE_CITY', width: 80, sortable: true, hidden: true },
        { name: 'DESTINATION_COUNTRY', width: 100, sortable: true, hidden: true },
        { name: 'IN_CUSTOMS', width: 200, sortable: true, hidden: true },
        { name: 'OUT_CUSTOMS', width: 100, sortable: true, hidden: true },
        { name: 'INSURER_ID', width: 100, sortable: true, hidden: true },
        { name: 'INSURANCE_NO', width: 100, sortable: true, hidden: true },
        { name: 'CLEARANCE_PERSON', width: 50, sortable: true, hidden: true },
        { name: 'PROXY_NO', width: 30, sortable: true, hidden: true },
        { name: 'FACTOR_NO', width: 80, sortable: true, hidden: true },
        { name: 'SHIP_NAME', width: 100, sortable: true, hidden: true },
        { name: 'TRAVEL_NO', width: 200, sortable: true, hidden: true },
        { name: 'INDENT_NO', width: 100, sortable: true, hidden: true },
        { name: 'COOTAG_NO', width: 100, sortable: true, hidden: true },
        { name: 'PERMIT_NO', width: 100, sortable: true, hidden: true },
        { name: 'CLEARANCE_NO', width: 50, sortable: true, hidden: true },
        { name: 'CARNETIR_NO', width: 30, sortable: true, hidden: true },
        { name: 'PURCHASE_TYPE', width: 80, sortable: true, hidden: true },
        { name: 'ALL_VALUE', width: 100, sortable: true, hidden: true },
        { name: 'FREIGHT_STATUS', width: 30, sortable: true, editable: false,
            edittype: 'checkbox', editoptions: { value: "True:False" },
            formatter: "checkbox", formatoptions: { disabled: false }, hidden: true
        },
        { name: 'COPY_ORIGINAL', width: 30, sortable: true, editable: false,
            edittype: 'checkbox', editoptions: { value: "True:False" },
            formatter: "checkbox", formatoptions: { disabled: false }, hidden: true
        },
        { name: 'REMARK', width: 100, sortable: true, hidden: true },
        { name: 'details', width: 20, sortable: false, search: false,
            formatter: function () {
                return "<span class='ui-icon ui-icon-document'></span>";
            }
        }
    ],
    gridview: true,
    rowNum: 30,
    rowList: [30, 60, 90],
    pager: '#pager',
    sortname: 'WorkOrderNo',
    viewrecords: true,
    sortorder: 'ASC',
    rownumbers: true,
    beforeSelectRow: function (rowid, e) {
        var iCol = $.jgrid.getCellIndex(e.target);
        // alert(rowid);
        console.log(rowid);
        //listItem
        console.log($.jgrid.getCellIndex(e.target));
        if ($.jgrid.getCellIndex(e.target) == 37) {
            $("#listItem").jqGrid("GridUnload");
            var gridItem = $('#listItem');
            gridItem.jqGrid({
                url: 'jQGridHandler.ashx',
                postData: { ActionPage: 'ClearanceItems', Action: 'Fill', requestId: rowid },
                ajaxGridOptions: { cache: false },
                loadonce: true,
                direction: "rtl",
                datatype: 'json',
                height: 200,
                colNames: ['', '', '', '', ' ', ' ', '',
                           '', '', 'ا', ' ', '', ' ',
                           '', '', ' ', '  ',
                           '', '', '', ' ', '  ', ' ', ' ', ''],
                colModel: [
                    { name: 'REQUEST_ID', width: 100, sortable: true },
                    { name: 'ITEM_NO', width: 200, sortable: true },
                    { name: 'GOODS_DESCRIPTION', width: 100, sortable: true },
                    { name: 'QUANTITY', width: 100, sortable: true },
                    { name: 'PACKING_TYPE', width: 100, sortable: true },
                    { name: 'GROSS_WEIGHT', width: 50, sortable: true },
                    { name: 'TARE_WEIGHT', width: 30, sortable: true },
                    { name: 'MEASUREMENT_TYPE', width: 80, sortable: true, hidden: true },
                    { name: 'GOODS_PRICE', width: 100, sortable: true, hidden: true },
                    { name: 'GOODS_CURRENCY', width: 200, sortable: true, hidden: true },
                    { name: 'GOODS_CURRENCY_RATE', width: 100, sortable: true, hidden: true },
                    { name: 'FREIGHT_PRICE', width: 100, sortable: true, hidden: true },
                    { name: 'FREIGHT_CURRENCY', width: 100, sortable: true, hidden: true },
                    { name: 'FREIGHT_CURRENCY_RATE', width: 50, sortable: true, hidden: true },
                    { name: 'INSURANCE_PRICE', width: 30, sortable: true, hidden: true },
                    { name: 'INSURANCE_CURRENCY', width: 80, sortable: true, hidden: true },
                    { name: 'INSURANCE_CURRENCY_RATE', width: 100, sortable: true, hidden: true },
                    { name: 'TARIFF_NO', width: 200, sortable: true, hidden: true },
                    { name: 'CUSTOM_PRICE', width: 100, sortable: true, hidden: true },
                    { name: 'WARRANTY_PRICE', width: 100, sortable: true, hidden: true },
                    { name: 'INOUT_DATE', width: 100, sortable: true, hidden: true },
                    { name: 'VEHICLE_TYPE', width: 50, sortable: true, hidden: true },
                    { name: 'VEHICLE_NO', width: 30, sortable: true, hidden: true },
                    { name: 'WAREHOUSE_ID', width: 80, sortable: true, hidden: true },
                    { name: 'REMARK', width: 80, sortable: true, hidden: true }
                ],
                gridview: true,
                rowNum: 20,
                rowList: [20, 40, 60],
                pager: '#pagerItem',
                viewrecords: true,
                sortorder: 'ASC',
                rownumbers: true
            });
            gridItem.jqGrid('navGrid', '#pagerItem', { add: true, edit: true, del: true },
                {}, {}, {}, { multipleSearch: true, overlay: false, width: 460 });

            var myGrid = grid;
            var selRowId = myGrid.jqGrid('getGridParam', 'selrow');
            celValue = myGrid.jqGrid('getCell', selRowId, 'IN_CUSTOMS');
            celValue2 = myGrid.jqGrid('getCell', selRowId, 'OUT_CUSTOMS');

            console.log(celValue);

            console.log(celValue2);

            alert(celValue);
            alert(celValue2);

            $("#POPUP2").dialog({ width: 780 });
        }

        return true;
    }
});
grid.jqGrid('navGrid', '#pager', { add: false, edit: false, del: true },
    {}, {}, {}, { multipleSearch: true, overlay: false, width: 460 })
         .navButtonAdd("#pager", {
             caption: "",
             buttonicon: "ui-icon-plus",
             onClickButton: function () {
                 // alert("Adding Row");
                 $("#POPUP1").dialog({ width: 730 });
             },
             position: "first"

         })
         .navButtonAdd("#pager", {
             caption: "",
             buttonicon: "ui-icon ui-icon-pencil",
             onClickButton: function () {

             },
             position: "first"

         })
          .navButtonAdd("#pager", {
              caption: "",
              buttonicon: "ui-icon ui-icon-trash",
              onClickButton: function () {

              },
              position: "first"
          });

当第一次单击详细信息按钮时获得错误值但之后返回正确的数据

谢谢大家

Answer 1

首先我回答你的主要问题。问题是您在回调中获取selrow参数（所选行的 id） 。beforeSelectRow在第一次单击“详细信息”按钮时，未选择任何行。所以myGrid.jqGrid('getGridParam', 'selrow')将返回null，您将无法使用id=null 来从行的列中getCell获取值。'IN_CUSTOMS''OUT_CUSTOMS'

You always return true from beforeSelectRow callback. So you don't want to prevent row selection if the user click on the 'details' button. In the case I would recommend you better to use onCellSelect callback. By the way the callback has iCol (the index of the cell which was clicked) as additional parameter. It will additional simplify your code.

Next remark. You use sortable: true in all column, but the default value of sortable property is already true (see the documentation). Additional I would recommend you to use column templates in the definition of jqGrid. For example in the definition of the first grid you use multiple times the same properties to define hidden column with the checkbox. Additionally there are many columns having width: 100 and all columns have empty column header ''. So you can define the first grid as

var grid = $('#list'),
    hiddenCheckboxTemplate = { width: 30, editable: false,
        edittype: 'checkbox', editoptions: { value: "True:False" },
        formatter: "checkbox", formatoptions: { disabled: false }, hidden: true
    };
grid.jqGrid({
    colModel: [
        { name: 'REQUEST_ID', hidden: true },
        { name: 'REQUEST_DATE', width: 50 },
        { name: 'REQUEST_NO', width: 60 },
        { name: 'CUSTOMER_ID' },
        { name: 'TRANSPORT_TYPE', width: 40 },
        { name: 'CLEARANCE_TYPE', width: 50 },
        { name: 'IMPORT_EXPORT', template: hiddenCheckboxTemplate },
        { name: 'WAYBILL_NO', width: 50 },
        { name: 'WAYBILL_OFFICE' },
        { name: 'MANIFEST', width: 200, hidden: true },
        { name: 'STORE_BILL', hidden: true },
        { name: 'DIRECT_NO', hidden: true },
        { name: 'STORE_DATE', hidden: true },
        { name: 'INOUT_DATE', width: 50, hidden: true },
        { name: 'SOURCE_COUNTRY', width: 30, hidden: true },
        { name: 'SOURCE_CITY', width: 80, hidden: true },
        { name: 'DESTINATION_COUNTRY', hidden: true },
        { name: 'IN_CUSTOMS', width: 200, hidden: true },
        { name: 'OUT_CUSTOMS', hidden: true },
        { name: 'INSURER_ID', hidden: true },
        { name: 'INSURANCE_NO', hidden: true },
        { name: 'CLEARANCE_PERSON', width: 50, hidden: true },
        { name: 'PROXY_NO', width: 30, hidden: true },
        { name: 'FACTOR_NO', width: 80, hidden: true },
        { name: 'SHIP_NAME', hidden: true },
        { name: 'TRAVEL_NO', width: 200, hidden: true },
        { name: 'INDENT_NO', hidden: true },
        { name: 'COOTAG_NO', hidden: true },
        { name: 'PERMIT_NO', hidden: true },
        { name: 'CLEARANCE_NO', width: 50, hidden: true },
        { name: 'CARNETIR_NO', width: 30, hidden: true },
        { name: 'PURCHASE_TYPE', width: 80, hidden: true },
        { name: 'ALL_VALUE', hidden: true },
        { name: 'FREIGHT_STATUS', template: hiddenCheckboxTemplate },
        { name: 'COPY_ORIGINAL', template: hiddenCheckboxTemplate },
        { name: 'REMARK', hidden: true },
        { name: 'details', width: 20, sortable: false, search: false,
            formatter: function () {
                return "<span class='ui-icon ui-icon-document'></span>";
            }
        }
    ],
    cmTemplate: { width: 100, label: '' },
    ... other option. No colNames are needed because of usage label
});

In the way you reduce the code and make it more manageable (easy to maintain). Because of usage label property in colModel no colNames option should be included.

In the same way you can reduce the code which define the second grid too.

Another remark. the code if ($.jgrid.getCellIndex(e.target) == 37) { is difficult to understand and to maintain. If you would include additional column in the grid or if you even change the value of some option (like rownumbers) the constant 37 should be changed. What you want to do is just test whether the user clicked on the 'details' column. I would recommend you to use better the column names. For example

var colModel = $(this).jqGrid('getGridParam', 'colModel'),
    cm = colModel[iCol]; // iCol is defined before as $.jgrid.getCellIndex(e.target)
if (cm && cm.name === 'details') {
    ....
}

The last remark. You use GridUnload and then recreate the second grid with details. It would be more effective to use .trigger('reloadGrid', [{page: 1}]) instead (see here). At the beginning you can create the second grid with datatype: 'local'. It will prevent the loading of data from the server. You can place the second grid in div which you hide directly after the grid is created and show the div if needed. If the second grid need be filled with information you can use setGridParam to change datatype to 'json' (see the answer), set other parameters like requestId of postData and then call .trigger('reloadGrid', [{page: 1}]). The way will work more effectively.