InputDate Validation

The InputDate's itemValidator property represents a function that can be used to validate the selection of any date. In this sample, invalid dates are weekends and holidays. Try to select one.

Learn about Input Controls | InputDate Validation Documentation | InputDate API Reference

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@grapecity/wijmo'; import * as input from '@grapecity/wijmo.input'; import { getHoliday } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // the InputDate let theInputDate = new input.InputDate('#theInputDate', { valueChanged: () => showCurrentDate(theInputDate), itemValidator: (date) => (date.getDay() % 6 != 0) && !getHoliday(date) }); showCurrentDate(theInputDate); // // format items in the InputDate's calendar (apply styles to weekends and holidays): theInputDate.calendar.formatItem.addHandler((sender, e) => { let weekday = e.data.getDay(), holiday = getHoliday(e.data); // wijmo.toggleClass(e.item, 'date-weekend', weekday == 0 || weekday == 6); wijmo.toggleClass(e.item, 'date-holiday', holiday != null); e.item.title = holiday || ''; }); // // show the currently selected date function showCurrentDate(ctrl) { let el = document.querySelector('#theInputDateOutput'); el.textContent = wijmo.Globalize.format(ctrl.value, 'D'); } }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo InputDate Validation</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <input id="theInputDate"> <div> The current date is <b><span id="theInputDateOutput"></span></b>. </div> </div> </body> </html>
let holidays = { '1/1': 'New Year\'s Day', '6/14': 'Flag Day', '7/4': 'Independence Day', '11/11': 'Veteran\'s Day', '12/25': 'Christmas Day', '1/3/1': 'Martin Luther King\'s Birthday', '2/3/1': 'Washington\'s Birthday', '5/3/6': 'Armed Forces Day', '9/1/1': 'Labor Day', '10/2/1': 'Columbus Day', '11/4/4': 'Thanksgiving Day' // fourth Thursday in November }; // // gets the holiday for a given date export function getHoliday(date) { let day = date.getDate(), month = date.getMonth() + 1, holiday = holidays[month + '/' + day]; // if (!holiday) { let weekDay = date.getDay(), weekNum = Math.floor((day - 1) / 7) + 1; // holiday = holidays[month + '/' + weekNum + '/' + weekDay]; } // return holiday; }
.wj-calendar { max-width: 21em; } .wj-calendar .wj-header { color: white; background: #808080; } .wj-calendar .date-holiday:not(.wj-state-selected) { font-weight: bold; color: #008f22; background: #f0fff0; outline: 2pt solid #008f22; } .wj-calendar .date-weekend:not(.wj-state-selected) { background-color: #d8ffa6; } body { margin-bottom: 36px; }
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