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Radio Group

Radio Group


The RadioGroup is a UI component that contains a set of radio buttons and allows an end user to make a single selection from the set. This demo illustrates how to change the component layout, define a custom template and handle the value change event.

Backend API
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window.onload = function () { const viewModel = { simple: { items: priorities, value: priorities[0], }, disabled: { items: priorities, value: priorities[1], disabled: true, }, changeLayout: { items: priorities, value: priorities[0], layout: 'horizontal', }, customItemTemplate: { items: priorities, value: priorities[2], itemTemplate(itemData, _, itemElement) { itemElement .parent().addClass(itemData.toLowerCase()) .text(itemData); }, }, eventRadioGroupOptions: { items: priorityEntities, valueExpr: 'id', displayExpr: 'text', value: priorityEntities[0].id, onValueChanged(e) { viewModel.list(tasks.filter((item) => item.priority === e.value)); }, }, list: ko.observableArray([tasks[1]]), }; ko.applyBindings(viewModel, document.getElementById('radio-group-demo')); };
<!DOCTYPE html> <html xmlns=""> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <script src=""></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <script src=""></script> <link rel="stylesheet" type="text/css" href="" /> <link rel="stylesheet" type="text/css" href="" /> <script src=""></script> <script src="data.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="radio-group-demo" class="form"> <div class="dx-fieldset"> <div class="dx-field"> <div class="dx-field-label">Default mode</div> <div class="dx-field-value"> <div data-bind="dxRadioGroup: simple"></div> </div> </div> <div class="dx-field"> <div class="dx-field-label">Disabled</div> <div class="dx-field-value"> <div data-bind="dxRadioGroup: disabled"></div> </div> </div> <div class="dx-field"> <div class="dx-field-label">Horizontal layout</div> <div class="dx-field-value"> <div data-bind="dxRadioGroup: changeLayout"></div> </div> </div> <div class="dx-field"> <div class="dx-field-label">Custom item template</div> <div class="dx-field-value"> <div data-bind="dxRadioGroup: customItemTemplate"></div> </div> </div> <div class="dx-field"> <div class="dx-field-label">Event handling</div> <div class="dx-field-value"> <div id="radio-group-with-selection" data-bind="dxRadioGroup: eventRadioGroupOptions"></div> </div> </div> </div> <div id="tasks-list"> Tasks by selected priority: <ul data-bind="foreach: list" id="list"> <li data-bind="text: subject"></li> </ul> </div> </div> </div> </body> </html>
.low.dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot { background: gray; } .normal.dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot { background: green; } .urgent.dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot { background: orange; } .high.dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot { background: red; } #radio-group-with-selection { margin-bottom: 10px; } #tasks-list { margin: 0 0 10px 10px; white-space: normal; } #list { margin: 10px 0 0 20px; padding-left: 0; text-align: left; }
const priorities = ['Low', 'Normal', 'Urgent', 'High']; const priorityEntities = [ { id: 0, text: 'Low' }, { id: 1, text: 'Normal' }, { id: 2, text: 'Urgent' }, { id: 3, text: 'High' }, ]; const tasks = [{ subject: 'Choose between PPO and HMO Health Plan', priority: 3, }, { subject: 'Non-Compete Agreements', priority: 0, }, { subject: 'Comment on Revenue Projections', priority: 1, }, { subject: 'Sign Updated NDA', priority: 2, }, { subject: 'Submit Questions Regarding New NDA', priority: 3, }, { subject: 'Rollout of New Website and Marketing Brochures', priority: 3, }];