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Tagged: combobox, custom, default, editor, initeditor, jqxgrid, selectedIndex, value

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

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How to set default combobox value inside jqxgrid Posts

April 24, 2014 at 5:23 am How to set default combobox value inside jqxgrid #53514

JMS786

Participant

How to put a default display value on combobox inside jqxgrid?
ex: column with combobox displaying “Asia”,”Africa”,”Europe”,”Others”.
How do I programmatically set the combobox to display “Africa” by default?

This is my code:

createeditor = function (row, column, editor) { 									
	editor.jqxComboBox({ source: ddl, promptText: 'Please Choose:'}); 
}

initeditor = function (row, cellvalue, editor) { 
	var indexToSelect = -1;
	$.each(ddl, function (index) {
	        if (this.value == "Africa") {
			indexToSelect = index;
			return false;
		}
	});
	editor.jqxComboBox({ selectedIndex: indexToSelect, dropDownWidth: 100 }); 
}

Thanks.

April 24, 2014 at 6:35 am How to set default combobox value inside jqxgrid #53518

Dimitar

Participant

Hello JMS786,

Your approach is correct. The issue may lie in the $.each() iterations. Here is a working example, based in the demo Customized Editors. Whenever you enter a cell from the column “Ship City” in edit mode, “Rio de Janeiro” will be automatically selected:

<!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-1.10.2.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/jqxgrid.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.selection.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.pager.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxlistbox.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.edit.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdropdownlist.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcombobox.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxpanel.js"></script>
    <script type="text/javascript" src="../../scripts/demos.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            // prepare the data
            var ordersSource =
            {
                datatype: "xml",
                datafields: [
                    { name: 'ShippedDate', map: 'm\\:properties>d\\:ShippedDate', type: 'date' },
                    { name: 'Freight', map: 'm\\:properties>d\\:Freight', type: 'float' },
                    { name: 'ShipName', map: 'm\\:properties>d\\:ShipName', type: 'string' },
                    { name: 'ShipAddress', map: 'm\\:properties>d\\:ShipAddress', type: 'string' },
                    { name: 'ShipCity', map: 'm\\:properties>d\\:ShipCity', type: 'string' },
                    { name: 'ShipCountry', map: 'm\\:properties>d\\:ShipCountry', type: 'string' }
                ],
                root: "entry",
                record: "content",
                id: 'm\\:properties>d\\:OrderID',
                url: "../sampledata/orders.xml",
                pager: function (pagenum, pagesize, oldpagenum) {
                    // callback called when a page or page size is changed.
                },
                updaterow: function (rowid, rowdata, result) {
                    // synchronize with the server - send update command
                    // call result with parameter true if the synchronization with the server is successful 
                    // and with parameter false if the synchronization failder.
                    result(true);
                }
            };
            var ordersAdapter = new $.jqx.dataAdapter(ordersSource);

            $("#jqxgrid").jqxGrid(
            {
                width: 850,
                source: ordersAdapter,
                selectionmode: 'singlecell',
                editable: true,
                pageable: true,
                autoheight: true,
                columns: [
                    {
                        text: 'Ship City', datafield: 'ShipCity', width: 150, columntype: 'combobox',
                        createeditor: function (row, column, editor) {
                            // assign a new data source to the combobox.
                            var list = ['Stuttgart', 'Rio de Janeiro', 'Strasbourg'];
                            editor.jqxComboBox({ autoDropDownHeight: true, source: list, promptText: "Please Choose:" });
                        },
                        initeditor: function (row, cellvalue, editor, celltext, cellwidth, cellheight) {
                            editor.jqxComboBox({ selectedIndex: 1 });
                        },
                        // update the editor's value before saving it.
                        cellvaluechanging: function (row, column, columntype, oldvalue, newvalue) {
                            // return the old value, if the new value is empty.
                            if (newvalue == "") return oldvalue;
                        }
                    },
                    {
                        text: 'Ship Country', datafield: 'ShipCountry', width: 150, columntype: 'dropdownlist',
                        createeditor: function (row, column, editor) {
                            // assign a new data source to the dropdownlist.
                            var list = ['Germany', 'Brazil', 'France'];
                            editor.jqxDropDownList({ autoDropDownHeight: true, source: list });
                        },
                        // update the editor's value before saving it.
                        cellvaluechanging: function (row, column, columntype, oldvalue, newvalue) {
                            // return the old value, if the new value is empty.
                            if (newvalue == "") return oldvalue;
                        }
                    },
                    { text: 'Ship Name', datafield: 'ShipName', columntype: 'combobox' }
                ]
            });
        });
    </script>
</head>
<body class='default'>
    <div id='jqxWidget' style="font-size: 13px; font-family: Verdana; float: left;">
        <div id="jqxgrid">
        </div>
    </div>
</body>
</html>

Best Regards,
Dimitar

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

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