在 jqGrid 中捕获下拉的更改/单击事件

Question

The click event on my drop down does not fire. I do not see an alert and when I add a breakpoint in Firebug, it does not reach the breakpoint. It does reach the click and double click events if I breakpoint those.

Specifically, when I:

1. Double click to edit a line
2. Pick the Customer Drop Down and pick something else
3. Move to another line

then the line

alert("I changed");

Does not run.

I wonder if it's because when I move to another line, the value gets reverted (even though I have commented out the restoreRow method)

Am I using the right event to capture when my drop down value changes (without having to change focus).

$(document).ready(
    function () {
        // This is executed as soon as the DOM is loaded and before the page contents are loaded
        var lastsel;
        // $ is short for JQuery which is in turn a super overloaded function that does lots of things.
        // # means select an element by its ID name, i.e. below we have <table id="ts"
        $("#ts").jqGrid({
            //=============
            // Grid Setup
            url: 'Timesheet/GridData/',
            datatype: 'json',
            mtype: 'GET',
            pager: $('#pager'),
            rowNum: 30,
            rowList: [10, 20, 30, 40, 80],
            viewrecords: true,
            imgpath: '/Content/themes/base/images',
            caption: 'Timesheet',
            height: 450,
            // Column definition
            colNames: ['hCustomer_ID', 'hProject_ID', 'hTask_ID', 'Date', 'Customer', 'Project', 'Task', 'Description', 'Hours', '$'],
            colModel: [
              { name: 'hCustomer_ID', index: 'hCustomer_ID', editable: false, hidden: true },
              { name: 'hProject_ID', index: 'hProject_ID', editable: false, hidden: true },
              { name: 'hTask_ID', index: 'hTask_ID', editable: false, hidden: true },
              { name: 'tsdate', index: 'tsdate', width: 80, editable: true, datefmt: 'yyyy-mm-dd' },
              { name: 'Customer', index: 'Customer', width: 250, align: 'left', editable: true, edittype: "select",
                  editoptions: { dataUrl: 'Timesheet/CustomerList' },
                  dataEvents: [
                    {
                        type: 'click',
                        fn: function (e) {
                            alert("I changed");
                        }
                    }]
              },
              { name: 'Project', index: 'Project', width: 250, align: 'left', editable: true, edittype: "select", editoptions: { dataUrl: 'Timesheet/ProjectList'} },
              { name: 'Task', index: 'Task', width: 250, align: 'left', editable: true, edittype: "select", editoptions: { dataUrl: 'Timesheet/TaskList'} },
              { name: 'Desc', index: 'Desc', width: 300, align: 'left', editable: true },
              { name: 'Hours', index: 'Hours', width: 50, align: 'left', editable: true },
              { name: 'Charge', index: 'Charge', edittype: 'checkbox', width: 18, align: 'center', editoptions: { value: "0:1" }, formatter: "checkbox", formatoptions: { disabled: false }, editable: true }
            ],
            //=============
            // Grid Events
            // when selecting, undo anything else
            onSelectRow: function (rowid, iRow, iCol, e) {
                if (rowid && rowid !== lastsel) {
                    // $(this).jqGrid('restoreRow', lastsel);
                    lastsel = rowid;
                }
            },
            // double click to edit
            ondblClickRow: function (rowid, iRow, iCol, e) {
                // browser independent stuff
                if (!e) e = window.event;
                var element = e.target || e.srcElement

                // When editing, change the drop down datasources to filter on the current parent
                $(this).jqGrid('setColProp', 'Project', { editoptions: { dataUrl: 'Timesheet/ProjectList?Customer_ID=' + $(this).jqGrid('getCell', rowid, 'hCustomer_ID')} });
                $(this).jqGrid('setColProp', 'Task', { editoptions: { dataUrl: 'Timesheet/TaskList?CustomerProject_ID=' + $(this).jqGrid('getCell', rowid, 'hProject_ID')} });

                // Go into edit mode (automatically moves focus to first field)
                // Use setTimout to apply the focus and datepicker after the first field gets the focus
                $(this).jqGrid(
                    'editRow',
                    rowid,
                    {
                        keys: true,
                        oneditfunc: function (rowId) {
                            setTimeout(function () {
                                $("input, select", element).focus();
                                $("#" + rowId + "_tsdate").datepicker({ dateFormat: 'yy-mm-dd' });
                            }, 50);
                        }
                    }
                );

            },  // end ondblClickRow event handler
            postData:
                {
                    startDate: function () { return $('#startDate').val(); }
                }
        }); // END jQuery("#ts").jqGrid

        $("#ts").jqGrid('navGrid', '#pager', { view: false, edit: false, add: false, del: false, search: false });
        $("#ts").jqGrid('inlineNav', "#pager");

    });                  // END jQuery(document).ready(function () {

REVISED WORKING CODE:

$(document).ready(
    function () {
        // This is executed as soon as the DOM is loaded and before the page contents are loaded
        var lastsel;
        // $ is short for JQuery which is in turn a super overloaded function that does lots of things.
        // # means select an element by its ID name, i.e. below we have <table id="ts"
        $("#ts").jqGrid({
            //=============
            // Grid Setup
            url: 'Timesheet/GridData/',
            datatype: 'json',
            mtype: 'GET',
            pager: $('#pager'),
            rowNum: 30,
            rowList: [10, 20, 30, 40, 80],
            viewrecords: true,
            caption: 'Timesheet',
            height: 450,
            // Column definition
            colNames: ['hCustomer_ID', 'hProject_ID', 'hTask_ID', 'Date', 'Customer', 'Project', 'Task', 'Description', 'Hours', '$'],
            colModel: [
              { name: 'hCustomer_ID', index: 'hCustomer_ID', editable: false, hidden: true },
              { name: 'hProject_ID', index: 'hProject_ID', editable: false, hidden: true },
              { name: 'hTask_ID', index: 'hTask_ID', editable: false, hidden: true },
              { name: 'tsdate', index: 'tsdate', width: 80, editable: true, datefmt: 'yyyy-mm-dd' },
              { name: 'Customer', index: 'Customer', width: 250, align: 'left', editable: true, edittype: "select",
                  editoptions: {
                      dataUrl: 'Timesheet/CustomerList',
                      dataEvents: [
                      {
                        type: 'change',
                        fn: function (e) {
                            alert("I changed");
                            }
                      }]
                  }
              },
              { name: 'Project', index: 'Project', width: 250, align: 'left', editable: true, edittype: "select", editoptions: { dataUrl: 'Timesheet/ProjectList'} },
              { name: 'Task', index: 'Task', width: 250, align: 'left', editable: true, edittype: "select", editoptions: { dataUrl: 'Timesheet/TaskList'} },
              { name: 'Desc', index: 'Desc', width: 300, align: 'left', editable: true },
              { name: 'Hours', index: 'Hours', width: 50, align: 'left', editable: true },
              { name: 'Charge', index: 'Charge', edittype: 'checkbox', width: 18, align: 'center', editoptions: { value: "0:1" }, formatter: "checkbox", formatoptions: { disabled: false }, editable: true }
            ],
            //=============
            // Grid Events
            // when selecting, undo anything else
            onSelectRow: function (rowid, iRow, iCol, e) {
                if (rowid && rowid !== lastsel) {
                    // $(this).jqGrid('restoreRow', lastsel);
                    lastsel = rowid;
                }
            },
            // double click to edit
            ondblClickRow: function (rowid, iRow, iCol, e) {
                // browser independent stuff
                if (!e) e = window.event;
                var element = e.target || e.srcElement

                // When editing, change the drop down datasources to filter on the current parent
                $(this).jqGrid('setColProp', 'Project', { editoptions: { dataUrl: 'Timesheet/ProjectList?Customer_ID=' + $(this).jqGrid('getCell', rowid, 'hCustomer_ID')} });
                $(this).jqGrid('setColProp', 'Task', { editoptions: { dataUrl: 'Timesheet/TaskList?CustomerProject_ID=' + $(this).jqGrid('getCell', rowid, 'hProject_ID')} });

                // Go into edit mode (automatically moves focus to first field)
                // Use setTimout to apply the focus and datepicker after the first field gets the focus
                $(this).jqGrid(
                    'editRow',
                    rowid,
                    {
                        keys: true,
                        oneditfunc: function (rowId) {
                            setTimeout(function () {
                                $("input, select", element).focus();
                                $("#" + rowId + "_tsdate").datepicker({ dateFormat: 'yy-mm-dd' });
                            }, 50);
                        }
                    }
                );

            },  // end ondblClickRow event handler
            postData:
                {
                    startDate: function () { return $('#startDate').val(); }
                }
        }); // END jQuery("#ts").jqGrid

        $("#ts").jqGrid('navGrid', '#pager', { view: false, edit: false, add: false, del: false, search: false });
        $("#ts").jqGrid('inlineNav', "#pager");

    });                   // END jQuery(document).ready(function () {

Answer 1

Additionally it's unclear why you use both inlineNav and manual call of editRow inside of ondblClickRow ? If you would select row and then click on the button from the navigator the dataUrl will not be adjusted.

The reason of the main problem which you describe is wrong usage of dataEvents . In the documentation of editoptions you will find the dataEvents is the property of editoptions like dataUrl for example. Currently you placed dataEvents on the wrong place in colModel .

I would recommend you additionally to read the answer which describe how you can use dataUrl which parameters depend on the current selected row. Additionally I would recommend you to verify that you set Cache-Control in the response of dataUrl (see the answer ). Alternatively you can use anothe option described here .