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This topic contains 1 reply, has 2 voices, and was last updated by  Nadezhda 9 years, 10 months ago.

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    Using the same source for multiple combos Posts
  • February 4, 2015 at 5:27 pm Using the same source for multiple combos #66531

    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?

    February 5, 2015 at 1:34 pm Using the same source for multiple combos #66627

    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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