Demos
Input(Vue)
ComboBox
Objects
Overview

ComboBox with Objects (Vue)

The ComboBox can be bound to an object array, but to display the right item in the object, you should set the displayMemberPath to the name of the property to display in the ComboBox's drop down. This sample displays the values for the selectedIndex, selectedValue, or text properties based on the selected object as user changes selection.

This example uses Vue.

JavaScript
Angular
Vue
React
app.vue
index.html
data.js
Copy to CodeMine
<template>
    <div class="container-fluid">
        <div class="form-group">
            <label for="theCombo">Select an item:</label>
            <wj-combo-box id="theCombo" :displayMemberPath="'country'" :selectedValuePath="'sales'" :itemsSource="data"
                :initialized="initCombo" :selectedIndexChanged="indexChanged"></wj-combo-box>
        </div>
        <p>
            The current text is: <b>{{ text }}</b>.
        </p>
        <p>
            The selectedIndex is: <b>{{ theCombo.selectedIndex }}</b>.
        </p>
        <p>
            The selectedValue is: <b>{{ formatCurrency(theCombo.selectedValue) }}</b>.
        </p>
    </div>
</template>

<script setup>
import { getData } from "./data";
import { ref } from "vue";

const theCombo = ref({});
const text = ref("");
const data = ref(getData());

function initCombo(combo) {
    theCombo.value = combo;
    text.value = combo.text;
}

function indexChanged(sender, e) {
    text.value = sender.text;
}

function formatCurrency(number) {
    return wijmo.Globalize.format(number, "c");
}
</script>

<style>
body {
    margin-bottom: 24px;
}

label {
    margin-right: 3px;
}
</style>
<template> <div class="container-fluid"> <div class="form-group"> <label for="theCombo">Select an item:</label> <wj-combo-box id="theCombo" :displayMemberPath="'country'" :selectedValuePath="'sales'" :itemsSource="data" :initialized="initCombo" :selectedIndexChanged="indexChanged"></wj-combo-box> </div> <p> The current text is: <b>{{ text }}</b>. </p> <p> The selectedIndex is: <b>{{ theCombo.selectedIndex }}</b>. </p> <p> The selectedValue is: <b>{{ formatCurrency(theCombo.selectedValue) }}</b>. </p> </div> </template> <script setup> import { getData } from "./data"; import { ref } from "vue"; const theCombo = ref({}); const text = ref(""); const data = ref(getData()); function initCombo(combo) { theCombo.value = combo; text.value = combo.text; } function indexChanged(sender, e) { text.value = sender.text; } function formatCurrency(number) { return wijmo.Globalize.format(number, "c"); } </script> <style> body { margin-bottom: 24px; } label { margin-right: 3px; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo ComboBox with Objects</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>
export function getData() { // create some random data let countries = ['China', 'Germany', 'Greece', 'Italy', 'Japan', 'Portugal', 'Russia', 'Spain', 'UK', 'US'], data = []; // for (let i = 0; i < countries.length; i++) { data.push({ country: countries[i], active: i % 5 != 0, sales: Math.random() * 100000, expenses: Math.random() * 50000 }); } // return data; }
(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': 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'@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);