jQuery UI Widgets Forums Lists ComboBox Using the same source for multiple combos

This topic contains 1 reply, has 2 voices, and was last updated by  Nadezhda 9 years, 2 months ago.

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  • Author

  • GrantM
    Participant

    Not sure if this is a dataAdapter query or comboBox but here is my sample code:

    var modulesSource = {
      datatype: "csv",
      datafields: [
        { name: 'Page' },
        { name: 'Category' },
        { name: 'Icon' },
        { name: 'PageFile' },
        { name: 'SecuritySetting' }
      ],
      url: "includes/getAllModules.asp?user=test"
    };
    var allModulesData = new $.jqx.dataAdapter(modulesSource);
    
    $("#comboModule1").jqxComboBox({ source: allModulesData, displayMember:"Page", valueMember:"Page", width: '240'});
    $("#comboModule2").jqxComboBox({ source: allModulesData, displayMember:"Page", valueMember:"Page", width: '240'});
    $("#comboModule3").jqxComboBox({ source: allModulesData, displayMember:"Page", valueMember:"Page", width: '240'});
    $("#comboModule4").jqxComboBox({ source: allModulesData, displayMember:"Page", valueMember:"Page", width: '240'});

    This seems to be really inificiant because its fetching the data 4 times (once for each combo). Is there a more efficient way i can do this and call the data once and populate the 4 combos?

    • This topic was modified 9 years, 2 months ago by  GrantM.

    Nadezhda
    Participant

    Hello GrantM,

    You can use the following example as possible solution.

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <title></title>
        <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" />
        <script type="text/javascript" src="../../scripts/jquery-1.11.1.min.js"></script>
        <script type="text/javascript" src="../../jqwidgets/jqxcore.js"></script>
        <script type="text/javascript" src="../../jqwidgets/jqxdata.js"></script>
        <script type="text/javascript" src="../../jqwidgets/jqxbuttons.js"></script>
        <script type="text/javascript" src="../../jqwidgets/jqxscrollbar.js"></script>
        <script type="text/javascript" src="../../jqwidgets/jqxlistbox.js"></script>
        <script type="text/javascript" src="../../jqwidgets/jqxcombobox.js"></script>
        <script type="text/javascript">
            $(document).ready(function () {
                var url = '../sampledata/nasdaq_vs_sp500.txt';
    
                var source = {
                    datatype: "csv",
                    datafields: [
                        { name: 'Date', type: 'date' },
                        { name: 'S&P 500', type: 'float' },
                        { name: 'NASDAQ', type: 'float' }
                    ],
                    url: url,
                    async: false
                };
                var dataAdapter = new $.jqx.dataAdapter(source, {               
                    loadComplete: function (records) {
                        // get data records.
                        var records = dataAdapter.records;
                        $("#comboModule1").jqxComboBox({ source: records, displayMember: "Date", valueMember: "Date", width: '240' });
                        $("#comboModule2").jqxComboBox({ source: records, displayMember: "Date", valueMember: "Date", width: '240' });
                        $("#comboModule3").jqxComboBox({ source: records, displayMember: "Date", valueMember: "Date", width: '240' });
                        $("#comboModule4").jqxComboBox({ source: records, displayMember: "Date", valueMember: "Date", width: '240' });
                        alert("loadComplete is called!");
                    }
                });
                dataAdapter.dataBind();
            });
        </script>
    </head>
    <body>
        <div id='comboModule1'>
        </div>
        <div id='comboModule2'>
        </div>
        <div id='comboModule3'>
        </div>
        <div id='comboModule4'>
        </div>
    </body>
    </html>

    Best Regards,
    Nadezhda

    jQWidgets team
    http://www.jqwidgets.com/

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