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Tagged: click, column, grid, Header, highlight, jqxgrid

This topic contains 1 reply, has 2 voices, and was last updated by Dimitar 11 years, 10 months ago.

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Highlight the Column Header on Click Posts

June 19, 2013 at 4:34 pm Highlight the Column Header on Click #23441

Member

How would I change the color of a column header when a user clicks on it? I tried this but it doesn’t work:

    $("#grid").on("columnclick", function (event) {
        var column = event.args.column;
        $(column).css("background-color:red;");
    });

June 20, 2013 at 5:40 am Highlight the Column Header on Click #23464

Dimitar

Participant

Hello ghunter,

Here is an example:

<!DOCTYPE html>
<html lang="en">
<head>
    <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" />
    <script type="text/javascript" src="../../scripts/jquery-1.8.3.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/jqxmenu.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcheckbox.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxlistbox.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdropdownlist.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.sort.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.pager.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.selection.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.edit.js"></script>
    <script type="text/javascript" src="../../scripts/gettheme.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            var theme = getDemoTheme();
            var url = "../sampledata/products.xml";
            // prepare the data
            var source =
            {
                datatype: "xml",
                datafields: [
                    { name: 'ProductName', type: 'string' },
                    { name: 'QuantityPerUnit', type: 'int' },
                    { name: 'UnitPrice', type: 'float' },
                    { name: 'UnitsInStock', type: 'float' },
                    { name: 'Discontinued', type: 'bool' }
                ],
                root: "Products",
                record: "Product",
                id: 'ProductID',
                url: url
            };
            var cellsrenderer = function (row, columnfield, value, defaulthtml, columnproperties) {
                if (value < 20) {
                    return '<span style="margin: 4px; float: ' + columnproperties.cellsalign + '; color: #ff0000;">' + value + '</span>';
                }
                else {
                    return '<span style="margin: 4px; float: ' + columnproperties.cellsalign + '; color: #008000;">' + value + '</span>';
                }
            }
            var dataAdapter = new $.jqx.dataAdapter(source, {
                downloadComplete: function (data, status, xhr) { },
                loadComplete: function (data) { },
                loadError: function (xhr, status, error) { }
            });
            // initialize jqxGrid
            $("#jqxgrid").jqxGrid(
            {
                width: 670,
                source: dataAdapter,
                theme: theme,
                pageable: true,
                autoheight: true,
                sortable: true,
                altrows: true,
                enabletooltips: true,
                editable: true,
                selectionmode: 'multiplecellsadvanced',
                columns: [
                  { text: 'Product Name', datafield: 'ProductName', width: 250 },
                  { text: 'Quantity per Unit', datafield: 'QuantityPerUnit', cellsalign: 'right', align: 'right', width: 120 },
                  { text: 'Unit Price', datafield: 'UnitPrice', align: 'right', cellsalign: 'right', cellsformat: 'c2', width: 100 },
                  { text: 'Units In Stock', datafield: 'UnitsInStock', cellsalign: 'right', cellsrenderer: cellsrenderer, width: 100 },
                  { text: 'Discontinued', columntype: 'checkbox', datafield: 'Discontinued' },
                ]
            });
            $("#jqxgrid").on("columnclick", function (event) {
                var column = event.args.datafield;
                var headerNumber;
                for (var i = 0; i < source.datafields.length; i++) {
                    if (column == source.datafields[i].name) {
                        headerNumber = i;
                        break;
                    };
                };
                $("#jqxgrid .jqx-grid-column-header:eq(" + headerNumber + ")").css("background-color", "Red");
            });
        });
    </script>
</head>
<body class='default'>
    <span style="font-size: 12px; font-family: Verdana;">Note: To run a sample that includes
        data binding, you must open it via "http://..." protocol since Ajax makes http requests.</span>
    <div id='jqxWidget' style="font-size: 13px; font-family: Verdana; float: left;">
        <div id="jqxgrid">
        </div>
    </div>
</body>
</html>

On a side note, the argument of the .css() function in your example is incorrect. Please check out jQuery’s API documentation on .css().

Best Regards,
Dimitar

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

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