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Knockout and Grid Filter CheckedList Posts

October 23, 2012 at 3:17 pm Knockout and Grid Filter CheckedList #9949

Participant

Just wondering what the best way is to update the Grid filters when using a knockout enabled grid.

I have modified the Grid sample in the knockout samples (using 2.5 code) to have a filter with a drop down list. (see below) What I am hoping to be able to do is update the grid drop down filter when the underlying model is changed, but I am a little confused on what I need to do to make this work.

<!DOCTYPE html>
<html lang="en">
<head>
    <title id='Description'>This example shows how to integrate jqxGrid with Knockout.js.
    </title>
    <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" />
    <script type="text/javascript" src="../../scripts/jquery-1.8.2.min.js"></script>
    <script type="text/javascript" src="../../scripts/json2.js"></script> 
    <script type="text/javascript" src="../../scripts/knockout-2.1.0.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/jqxdropdownlist.js"></script>		
	<script type="text/javascript" src="../../jqwidgets/jqxlistbox.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.filter.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="../../jqwidgets/jqxknockout.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcheckbox.js"></script>
    <script type="text/javascript" src="../../scripts/gettheme.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            var initialData = [
                { name: "Well-Travelled Kitten", sales: 352, price: 75.95 },
                { name: "Speedy Coyote", sales: 89, price: 190.00 },
                { name: "Furious Lizard", sales: 152, price: 25.00 },
                { name: "Indifferent Monkey", sales: 1, price: 99.95 },
                { name: "Brooding Dragon", sales: 0, price: 6350 },
                { name: "Ingenious Tadpole", sales: 39450, price: 0.35 },
                { name: "Optimistic Snail", sales: 420, price: 1.50 }
            ];

            var GridModel = function (items) {
                this.items = ko.observableArray(items);
                this.disabled = ko.observable(false);

                this.addItem = function () {
                    // add a new item.
                    if (this.items().length < 20) {
                        this.items.push({ name: "New item", sales: Math.round(Math.random() * 100), price: Math.round(Math.random() * 100) });
                    }
                };

                this.removeItem = function () {
                    // remove the last item.
                    this.items.pop();
                };

                this.updateItem = function () {
                    // update the first item.
                    var item = {};
                    item.name = initialData[Math.floor(Math.random() * initialData.length)].name;
                    item.sales = Math.floor(Math.random() * 500);
                    item.price = Math.floor(Math.random() * 200);
                    this.items.replace(this.items()[0], item);
                };
            };

            ko.applyBindings(new GridModel(initialData));
        });
    </script>
</head>
<body class='default'>
    <div id='jqxWidget'>
        <div style="margin-bottom: 10px;">
            <input id="addButton" type="button" data-bind="click: addItem, jqxButton: {theme: getTheme()}" value="Add Item" />
            <input id="removeButton" type="button" data-bind="click: removeItem, jqxButton: {theme: getTheme()}" value="Remove Item" />
            <input id="updateButton" type="button" data-bind="click: updateItem, jqxButton: {theme: getTheme()}" value="Update Item" />
            <div data-bind="jqxCheckBox: {checked: disabled, theme: getTheme()}" style='margin-top: 5px;' id="checkBox">Disabled</div>
        </div>
        <div data-bind="jqxGrid: {source: items, disabled: disabled, autoheight: true,
                theme: getTheme(),
                editable: true,
				filterable: true,
				showfilterrow:true,
                selectionmode: 'singlecell',
                columns: [
                    { text: 'Name', dataField: 'name', width: 200, filtertype:'checkedlist' },
                    { text: 'Sales', dataField: 'sales', width: 200, cellsalign: 'right' },
                    { text: 'Price', dataField: 'price', width: 200, cellsformat: 'c2', cellsalign: 'right' }
                ]}" id="jqxgrid">
        </div>
        <table style="margin-top: 20px;">
            <tbody data-bind="foreach: items">
                <tr>
                    <td data-bind="text: name"></td>
                    <td data-bind="text: sales"></td>
                    <td data-bind="text: price"></td>
                </tr>
            </tbody>
        </table>
    </div>
</body>
</html>

October 26, 2012 at 5:50 am Knockout and Grid Filter CheckedList #10052

Peter Stoev

Keymaster

Hi Glen,

Thank you for the feedback! We will investigate the reported behavior!

Best Regards,
Peter Stoev

jQWidgets Team
http://www.jqwidgets.com

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