Tree - Allow one checkbox for each node and disable other elements in same level - Angular, Vue, React, Web Components, Javascript, HTML5 Widgets

Tagged: check, checkChange, checkItem, item, jqxtree, leaf, level, select, selectItem, Tree

This topic contains 3 replies, has 3 voices, and was last updated by Dimitar 10 years, 3 months ago.

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Tree – Allow one checkbox for each node and disable other elements in same level Posts

July 23, 2014 at 5:51 am Tree – Allow one checkbox for each node and disable other elements in same level #57597

raghu_muni

Participant

Root

—–Node 1

————- Data a

————- Data b
————- Node11
—————— Data b1
—————— Data b2
————- Data c

—–Node 2

————- Data d

————- Data e

————- Data f

—–Node 3

————- Data g

Note : I Need to select only one element at each node.
Node 1 : I need to select only one checkbox for Data a, Data b,Data b1 and Data b2.
Node 2 : I can select only one checkbox for Data d, Data e,Data f

July 23, 2014 at 9:19 am Tree – Allow one checkbox for each node and disable other elements in same level #57609

Dimitar

Participant

Hello raghu_muni,

Here is an example. We hope it is helpful to you:

<!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="../../scripts/demos.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcore.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/jqxcheckbox.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            // create jqxTree
            $('#jqxTree').jqxTree({ height: '400px', checkboxes: true, width: '330px' });
            $('#jqxTree').css('visibility', 'visible');
            var checkedItem = null;
            var selectedItem = null;
            $('#jqxTree').on('select', function (event) {
                var args = event.args;
                var item = $('#jqxTree').jqxTree('getItem', args.element);
                var label = item.label;
                if (item.level == 0) {
                    selectedItem = item;
                } else {
                    $("#jqxTree").jqxTree('selectItem', selectedItem);
                }
            });
            $('#jqxTree').on('checkChange', function (event) {
                var item = $('#jqxTree').jqxTree('getItem', event.args.element);
                if (event.args.checked == true) {
                    if (checkedItem == null && item.hasItems == false) {
                        checkedItem = item;
                    } else {
                        $('#jqxTree').jqxTree('uncheckItem', event.args.element);
                    }
                } else {
                    if (checkedItem && item.label == checkedItem.label) {
                        checkedItem = null;
                    }
                }
            });
        });
    </script>
</head>
<body class='default'>
    <div id='jqxTree' style='visibility: hidden; float: left; margin-left: 20px;'>
        <ul>
            <li id='home'>Home</li>
            <li item-expanded='true'>Solutions
                        <ul>
                            <li>Education</li>
                            <li>Financial services</li>
                            <li>Government</li>
                            <li item-checked='false'>Manufacturing</li>
                            <li>Solutions
                                <ul>
                                    <li>Consumer photo and video</li>
                                    <li>Mobile</li>
                                    <li>Rich Internet applications</li>
                                    <li>Technical communication</li>
                                    <li>Training and eLearning</li>
                                    <li>Web conferencing</li>
                                </ul>
                            </li>
                            <li>All industries and solutions</li>
                        </ul>
            </li>
            <li>Products
                        <ul>
                            <li>PC products</li>
                            <li>Mobile products</li>
                            <li>All products</li>
                        </ul>
            </li>
            <li>Support
                        <ul>
                            <li>Support home</li>
                            <li>Customer Service</li>
                            <li>Knowledge base</li>
                            <li>Books</li>
                            <li>Training and certification</li>
                            <li>Support programs</li>
                            <li>Forums</li>
                            <li>Documentation</li>
                            <li>Updates</li>
                        </ul>
            </li>
            <li>Communities
                        <ul>
                            <li>Designers</li>
                            <li>Developers</li>
                            <li>Educators and students</li>
                            <li>Partners</li>
                            <li>By resource
                                <ul>
                                    <li>Labs</li>
                                    <li>TV</li>
                                    <li>Forums</li>
                                    <li>Exchange</li>
                                    <li>Blogs</li>
                                    <li>Experience Design</li>
                                </ul>
                            </li>
                        </ul>
            </li>
            <li>Company
                        <ul>
                            <li>About Us</li>
                            <li>Press</li>
                            <li>Investor Relations</li>
                            <li>Corporate Affairs</li>
                            <li>Careers</li>
                            <li>Showcase</li>
                            <li>Events</li>
                            <li>Contact Us</li>
                            <li>Become an affiliate</li>
                        </ul>
            </li>
        </ul>
    </div>
</body>
</html>

Best Regards,
Dimitar

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

September 5, 2014 at 1:11 pm Tree – Allow one checkbox for each node and disable other elements in same level #59177

ashish_iitr

Participant

Hello sir,
Above code is not working perfectly. I have a list of node directory, each directory have a number of directories with their corresponding checkboxes and i want to select only one checkbox for a specific parent directory can you help me please as soon as possible its urgent.

September 8, 2014 at 9:44 am Tree – Allow one checkbox for each node and disable other elements in same level #59226

Dimitar

Participant

Hi ashish_iitr,

The solution above allows only one checked item of a second or lower level. Unfortunately, we cannot provide you with an example which allows one checked descendant per top-level element. This is a custom scenario which may or may not be supported by jqxTree. As some help, we can provide you with a function which determines the top-level ancestor of a tree item:

function getParent(item) {
    if (item.level == 0) {
        return null;
    } else if (item.level == 1) {
        return $('#jqxTree').jqxTree('getItem', item.parentElement).label;
    } else {
        return getParent($('#jqxTree').jqxTree('getItem', item.parentElement));
    }
}

Best Regards,
Dimitar

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

Author

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