jQWidgets Forums

Tagged: dropdown tree, dropdownbutton, jqxDropDownButton, jqxtree, json, Tree

This topic contains 1 reply, has 2 voices, and was last updated by Dimitar 10 years, 4 months ago.

Viewing 2 posts - 1 through 2 (of 2 total)

Author

DropDown Tree with JSON Posts

December 11, 2014 at 10:17 am DropDown Tree with JSON #64101

jkapasi

Participant

Hello,

I am trying to get DropDown Tree using JSON data but I am not able to get it using the demos.

Can I get the expected functionality?

Regards
Jash

December 11, 2014 at 1:05 pm DropDown Tree with JSON #64114

Dimitar

Participant

Hello Jash,

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-1.11.1.min.js"></script>
    <script type="text/javascript" src="../../scripts/demos.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/jqxpanel.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxtree.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdropdownbutton.js"></script>
</head>
<body>
    <div id='content'>
        <script type="text/javascript">
            $(document).ready(function () {
                $("#dropDownButton").jqxDropDownButton({ width: 200, height: 25 });

                $('#jqxTree').on('select', function (event) {
                    var args = event.args;
                    var item = $('#jqxTree').jqxTree('getItem', args.element);

                    var dropDownContent = '<div style="position: relative; margin-left: 3px; margin-top: 5px;">' + item.label + '</div>';
                    $("#dropDownButton").jqxDropDownButton('setContent', dropDownContent);
                });

                var data = [
                { "id": "2",
                    "parentid": "1",
                    "text": "Hot Chocolate",
                    "value": "$2.3"
                }, {
                    "id": "3",
                    "parentid": "1",
                    "text": "Peppermint Hot Chocolate",
                    "value": "$2.3"
                }, {
                    "id": "4",
                    "parentid": "1",
                    "text": "Salted Caramel Hot Chocolate",
                    "value": "$2.3"
                }, {
                    "id": "5",
                    "parentid": "1",
                    "text": "White Hot Chocolate",
                    "value": "$2.3"
                }, {
                    "text": "Chocolate Beverage",
                    "id": "1",
                    "parentid": "-1",
                    "value": "$2.3"
                }, {
                    "id": "6",
                    "text": "Espresso Beverage",
                    "parentid": "-1",
                    "value": "$2.3"
                }, {
                    "id": "7",
                    "parentid": "6",
                    "text": "Caffe Americano",
                    "value": "$2.3"
                }, {
                    "id": "8",
                    "text": "Caffe Latte",
                    "parentid": "6",
                    "value": "$2.3"
                }, {
                    "id": "9",
                    "text": "Caffe Mocha",
                    "parentid": "6",
                    "value": "$2.3"
                }, {
                    "id": "10",
                    "text": "Cappuccino",
                    "parentid": "6",
                    "value": "$2.3"
                }, {
                    "id": "11",
                    "text": "Pumpkin Spice Latte",
                    "parentid": "6",
                    "value": "$2.3"
                }, {
                    "id": "12",
                    "text": "Frappuccino",
                    "parentid": "-1"
                }, {
                    "id": "13",
                    "text": "Caffe Vanilla Frappuccino",
                    "parentid": "12",
                    "value": "$2.3"
                }, {
                    "id": "15",
                    "text": "450 calories",
                    "parentid": "13",
                    "value": "$2.3"
                }, {
                    "id": "16",
                    "text": "16g fat",
                    "parentid": "13",
                    "value": "$2.3"
                }, {
                    "id": "17",
                    "text": "13g protein",
                    "parentid": "13",
                    "value": "$2.3"
                }, {
                    "id": "14",
                    "text": "Caffe Vanilla Frappuccino Light",
                    "parentid": "12",
                    "value": "$2.3"
                }]

                // prepare the data
                var source =
                {
                    datatype: "json",
                    datafields: [
                        { name: 'id' },
                        { name: 'parentid' },
                        { name: 'text' },
                        { name: 'value' }
                    ],
                    id: 'id',
                    localdata: data
                };

                // create data adapter.
                var dataAdapter = new $.jqx.dataAdapter(source);
                // perform Data Binding.
                dataAdapter.dataBind();
                // get the tree items. The first parameter is the item's id. The second parameter is the parent item's id. The 'items' parameter represents 
                // the sub items collection name. Each jqxTree item has a 'label' property, but in the JSON data, we have a 'text' field. The last parameter 
                // specifies the mapping between the 'text' and 'label' fields.  
                var records = dataAdapter.getRecordsHierarchy('id', 'parentid', 'items', [{ name: 'text', map: 'label'}]);
                $('#jqxTree').jqxTree({ source: records, width: '300px' });
            });
        </script>
        <div id="dropDownButton">
            <div id='jqxTree' style="border: none;">
            </div>
        </div>
    </div>
</body>
</html>

Best Regards,
Dimitar

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

Author

Posts

Viewing 2 posts - 1 through 2 (of 2 total)

You must be logged in to reply to this topic.