Why are the State select box option values incorrect in my jqGrid edit form?-JS Tutorial-php.cn

Why are the State select box option values incorrect in my jqGrid edit form?

Linda Hamilton

Release： 2024-11-01 12:56:02

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Why are the State select box option values incorrect in my jqGrid edit form?

jqgrid incorrect select drop down option values in edit box

Despite correctly selecting the Country and State values in the edit form, the option values displayed in the State select box are incorrect when the form is edited. This issue persists even when switching back to the UK country after selecting the US country.

How to resolve incorrect option values in the State select box

To resolve this issue, it is necessary to correctly populate the State select box based on the selected Country value when the edit form loads. The approach involves:

Populating the State values based on the Country selection in the dataInit function.
Rebuilding the State select box if the Country is changed.

Code Solution

<code class="javascript">var countries = { '1': 'US', '2': 'UK' };
var states = { '1': 'Alabama', '2': 'California', '3': 'Florida', '4': 'Hawaii', '5': 'London', '6': 'Oxford' };
var statesOfCountry = {
    1: { '1': 'Alabama', '2': 'California', '3': 'Florida', '4': 'Hawaii' },
    2: { '5': 'London', '6': 'Oxford' }
};

var resetStatesValues = function () {
    grid.setColProp('State', { editoptions: { value: states} });
};

$("#list").jqGrid({
    data: mydata,
    datatype: 'local',
    colModel: [
        { name: 'Name', width: 200 },
        { 
            name: 'Country', 
            width: 100, 
            editable: true, 
            formatter: 'select',
            edittype: 'select', 
            editoptions: {
                value: countries,
                dataInit: function (elem) {
                    setStateValues($(elem).val());
                },
                dataEvents: [
                    { type: 'change', fn: function (e) { changeStateSelect($(e.target).val(), e.target); } },
                    { type: 'keyup', fn: function (e) { $(e.target).trigger('change'); } }
                ]
            }
        },
        {
            name: 'State', 
            width: 100, 
            editable: true, 
            formatter: 'select',
            edittype: 'select', 
            editoptions: { value: states }
        }
    ],
    onSelectRow: function (id) {
        if (id &amp;&amp; id !== lastSel) {
            if (lastSel != -1) {
                resetStatesValues();
                grid.restoreRow(lastSel);
            }
            lastSel = id;
        }
    },
    ondblClickRow: function (id, ri, ci) {
        if (id &amp;&amp; id !== lastSel) {
            grid.restoreRow(lastSel);
            lastSel = id;
        }
        resetStatesValues();
        grid.editRow(id, true, null, null, 'clientArray', null,
                        function (rowid, response) {  // aftersavefunc
                            grid.setColProp('State', { editoptions: { value: states} });
                        });
        return;
    },
    editurl: 'clientArray',
    sortname: 'Name',
    height: '100%',
    viewrecords: true,
    rownumbers: true,
    sortorder: "desc",
    pager: '#pager',
    caption: "Demonstrate dependend select/dropdown lists (edit on double-click)"
}).jqGrid('navGrid','#pager', 
          { edit: true, add: true, del: false, search: false, refresh: false },
          { // edit options
              recreateForm:true,
              onClose:function() {
                  resetStatesValues();
              }
          },
          { // add options
              recreateForm:true,
              onClose:function() {
                  resetStatesValues();
              }
          });</code>

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Notes

The grid.setColProp(...) method is used to set the column properties.
The dataInit function is used to initialize the select box and populate it with options.
The dataEvents array is used to attach event handlers to the select box.

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