Demos
Grid(Vue)
Accessibility Extender

Accessibility Extender (Vue)

The FlexGrid control has extensive built-in accessibility support. But there are situations where you may want to extend that and provide additional support that is specific to your application or user base. This sample has an AccessibilityExtender class that shows how to add your own app-specific accessibility features.

Learn about FlexGrid | FlexGrid API Reference

This example uses Vue.

JavaScript
Angular
Vue
React
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app.vue
index.html
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<template>
    <main class="container-fluid">
        <div class="input-group">
            <div class="input-group-addon">
                <span class="glyphicon glyphicon-search"></span>
            </div>
            <input type="text" class="form-control" id="filter" placeholder="filter">
        </div>
        <!-- the grid -->
        <wj-flex-grid id="sample-grid" :alternatingRowStep="0" selectionMode="ListBox" :itemsSource="data"
            :initialized="initializeGrid">
        </wj-flex-grid>
    </main>
</template>

<script setup>
import * as wijmo from "@mescius/wijmo";
import * as gridPdf from "@mescius/wijmo.grid.pdf";
import * as wjcGrid from "@mescius/wijmo.grid";
import { AccessibilityExtender } from "./accessibility-extender";
import { ref, onMounted } from "vue";

const data = ref(null);
const _acX = ref(null);
const flex = ref(null);
const _toSearch = ref(null);

onMounted(function () {
    _acX.value = new AccessibilityExtender(flex.value);
    document.querySelector("#filter").addEventListener("input", (e) => {
        clearTimeout(_toSearch.value);
        _toSearch.value = setTimeout(() => {
            let search = e.target.value,
                rx = new RegExp(search, "i");
            flex.value.collectionView.filter = (item) => {
                return !search || JSON.stringify(item).match(rx) != null;
            };

            // notify users that a filter was applied
            setTimeout(() => {
                let msg = search ? "grid filtered on " + search : "filter removed";
                msg += ": " + flex.value.rows.length + " items displayed";
                _acX.value.alert(msg);
            }, 200);
        }, 900);
    });
});

function initializeGrid(ctl) {
    flex.value = ctl;
    data.value = _getData(100);
    flex.value.sortedColumn.addHandler((s, e) => {
        let col = s.columns[e.col];
        _acX.value.alert("column " + col.header + " sorted in " + (col.currentSort == "+" ? "ascending" : "descending") + " order");
    });
}

function _getData(count) {
    // create some random data
    let countries = "US,Germany,UK,Japan,Italy,Greece".split(","),
        products = "Tents,Boots,Knives,Bows,Arrows,Sleeping Bags,Lamps".split(","),
        data = [];
    for (let i = 0; i < count; i++) {
        data.push({
            id: i,
            country: countries[i % countries.length],
            product: products[i % products.length],
            active: i % 5 != 0,
            downloads: Math.round(Math.random() * 200000),
            sales: Math.random() * 100000,
            expenses: Math.random() * 50000,
        });
    }
    return data;
}
</script>

<style>
.wj-flexgrid {
    height: 300px;
    margin: 6px 0;
}

#sample-grid .wj-cell {
    border-right: none;
    padding: 8px 3px;
}
</style>
<template> <main class="container-fluid"> <div class="input-group"> <div class="input-group-addon"> <span class="glyphicon glyphicon-search"></span> </div> <input type="text" class="form-control" id="filter" placeholder="filter"> </div> <!-- the grid --> <wj-flex-grid id="sample-grid" :alternatingRowStep="0" selectionMode="ListBox" :itemsSource="data" :initialized="initializeGrid"> </wj-flex-grid> </main> </template> <script setup> import * as wijmo from "@mescius/wijmo"; import * as gridPdf from "@mescius/wijmo.grid.pdf"; import * as wjcGrid from "@mescius/wijmo.grid"; import { AccessibilityExtender } from "./accessibility-extender"; import { ref, onMounted } from "vue"; const data = ref(null); const _acX = ref(null); const flex = ref(null); const _toSearch = ref(null); onMounted(function () { _acX.value = new AccessibilityExtender(flex.value); document.querySelector("#filter").addEventListener("input", (e) => { clearTimeout(_toSearch.value); _toSearch.value = setTimeout(() => { let search = e.target.value, rx = new RegExp(search, "i"); flex.value.collectionView.filter = (item) => { return !search || JSON.stringify(item).match(rx) != null; }; // notify users that a filter was applied setTimeout(() => { let msg = search ? "grid filtered on " + search : "filter removed"; msg += ": " + flex.value.rows.length + " items displayed"; _acX.value.alert(msg); }, 200); }, 900); }); }); function initializeGrid(ctl) { flex.value = ctl; data.value = _getData(100); flex.value.sortedColumn.addHandler((s, e) => { let col = s.columns[e.col]; _acX.value.alert("column " + col.header + " sorted in " + (col.currentSort == "+" ? "ascending" : "descending") + " order"); }); } function _getData(count) { // create some random data let countries = "US,Germany,UK,Japan,Italy,Greece".split(","), products = "Tents,Boots,Knives,Bows,Arrows,Sleeping Bags,Lamps".split(","), data = []; for (let i = 0; i < count; i++) { data.push({ id: i, country: countries[i % countries.length], product: products[i % products.length], active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.random() * 100000, expenses: Math.random() * 50000, }); } return data; } </script> <style> .wj-flexgrid { height: 300px; margin: 6px 0; } #sample-grid .wj-cell { border-right: none; padding: 8px 3px; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexGrid Accessibility Extender</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="compiler.js" type="module"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.js'); </script> </head> <body> <div id="app"> </div> </body> </html>
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true }, meta: { '*.css': { loader: 'css' }, '*.vue': { loader: '../plugin-vue/index.js' } //'*.vue': { loader: 'systemjs-plugin-vue' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.style': 'npm:@mescius/wijmo.grid.style/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js', '@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js', '@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js', '@mescius/wijmo.barcode.specialized': 'npm:@mescius/wijmo.barcode.specialized/index.js', "@mescius/wijmo.vue2.chart.analytics": "npm:@mescius/wijmo.vue2.chart.analytics/index.js", "@mescius/wijmo.vue2.chart.animation": "npm:@mescius/wijmo.vue2.chart.animation/index.js", "@mescius/wijmo.vue2.chart.annotation": "npm:@mescius/wijmo.vue2.chart.annotation/index.js", "@mescius/wijmo.vue2.chart.finance.analytics": "npm:@mescius/wijmo.vue2.chart.finance.analytics/index.js", "@mescius/wijmo.vue2.chart.finance": "npm:@mescius/wijmo.vue2.chart.finance/index.js", "@mescius/wijmo.vue2.chart.hierarchical": "npm:@mescius/wijmo.vue2.chart.hierarchical/index.js", "@mescius/wijmo.vue2.chart.interaction": "npm:@mescius/wijmo.vue2.chart.interaction/index.js", "@mescius/wijmo.vue2.chart.radar": "npm:@mescius/wijmo.vue2.chart.radar/index.js", '@mescius/wijmo.vue2.chart.map': 'npm:@mescius/wijmo.vue2.chart.map/index.js', "@mescius/wijmo.vue2.chart": "npm:@mescius/wijmo.vue2.chart/index.js", "@mescius/wijmo.vue2.core": "npm:@mescius/wijmo.vue2.core/index.js", "@mescius/wijmo.vue2.gauge": "npm:@mescius/wijmo.vue2.gauge/index.js", "@mescius/wijmo.vue2.grid.detail": "npm:@mescius/wijmo.vue2.grid.detail/index.js", "@mescius/wijmo.vue2.grid.filter": "npm:@mescius/wijmo.vue2.grid.filter/index.js", "@mescius/wijmo.vue2.grid.grouppanel": "npm:@mescius/wijmo.vue2.grid.grouppanel/index.js", '@mescius/wijmo.vue2.grid.search': 'npm:@mescius/wijmo.vue2.grid.search/index.js', "@mescius/wijmo.vue2.grid.multirow": "npm:@mescius/wijmo.vue2.grid.multirow/index.js", "@mescius/wijmo.vue2.grid.sheet": "npm:@mescius/wijmo.vue2.grid.sheet/index.js", '@mescius/wijmo.vue2.grid.transposed': 'npm:@mescius/wijmo.vue2.grid.transposed/index.js', '@mescius/wijmo.vue2.grid.transposedmultirow': 'npm:@mescius/wijmo.vue2.grid.transposedmultirow/index.js', "@mescius/wijmo.vue2.grid": "npm:@mescius/wijmo.vue2.grid/index.js", "@mescius/wijmo.vue2.input": "npm:@mescius/wijmo.vue2.input/index.js", "@mescius/wijmo.vue2.olap": "npm:@mescius/wijmo.vue2.olap/index.js", "@mescius/wijmo.vue2.viewer": "npm:@mescius/wijmo.vue2.viewer/index.js", "@mescius/wijmo.vue2.nav": "npm:@mescius/wijmo.vue2.nav/index.js", "@mescius/wijmo.vue2.base": "npm:@mescius/wijmo.vue2.base/index.js", '@mescius/wijmo.vue2.barcode.common': 'npm:@mescius/wijmo.vue2.barcode.common/index.js', '@mescius/wijmo.vue2.barcode.composite': 'npm:@mescius/wijmo.vue2.barcode.composite/index.js', '@mescius/wijmo.vue2.barcode.specialized': 'npm:@mescius/wijmo.vue2.barcode.specialized/index.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'npm:jszip/dist/jszip.js', 'css': 'npm:systemjs-plugin-css/css.js', 'vue': 'npm:vue/dist/vue.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', 'vue-loader': 'npm:systemjs-vue-browser/index.js', //'systemjs-plugin-vue': 'npm:systemjs-plugin-vue/index.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel/systemjs-babel-browser.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'js' }, rxjs: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);