Demos
Chart(Vue)
Chart Features
Series Picker

Series Picker (Vue)

You can easily implement a series-picker UI using FlexChart's series property, a ListBox control, and Wijmo's showPopup and hidePopup methods.

For example, the chart below starts with an auto-generated set of series. Click the gear icon at the top-left corner to show a ListBox where you can select the series you want to display.

Note that you can achieve a similar result by setting the chart's legendToggle property to true. Once you do that, the legend itself acts as a series picker: clicking any series name in the legend toggles its visibility.

Learn about FlexChart | FlexChart API Reference

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">
            <div style="position:relative">
                <wj-flex-chart :itemsSource="data" bindingX="country" :palette="palette"
                    :initialized="initializeChart"></wj-flex-chart>
                <div id="pickerButton" v-on:click="pickerClick">
                    <span class="column-picker-icon glyphicon glyphicon-cog"></span>
                </div>
            </div>
            <div style="display:none">
                <wj-list-box :initialized="initializeLB" :itemsSource="lbData" checkedMemberPath="visible"
                    displayMemberPath="name" :lostFocus="lostFocus"
                    :checkedItemsChanged="checkedItemsChanged"></wj-list-box>
            </div>
        </div>
    </div>
</template>

<script setup>
import { getData } from "./data";
import { isArray, isNumber, toHeaderCase, showPopup, hidePopup } from "@mescius/wijmo";
import { Palettes, Series, SeriesVisibility } from "@mescius/wijmo.chart";
import { ref } from "vue";

const data = ref(getData());
const palette = ref(getRandomPalette());
const lbData = ref(null);
const theChart = ref(null);
const theSeriesPicker = ref(null);

function initializeChart(flex) {
    theChart.value = flex;
    // auto-generate series
    let item = data.value[0];
    for (let k in item) {
        if (isNumber(item[k])) {
            let series = new Series();
            series.binding = k;
            series.name = toHeaderCase(k);
            series["visible"] = true; // add 'visible' property for binding
            theChart.value.series.push(series);
        }
    }
    lbData.value = flex.series;
}

function initializeLB(flex) {
    theSeriesPicker.value = flex;
}

function getRandomPalette() {
    let palettes = Object.keys(Palettes).filter((prop) => isArray(Palettes[prop]));
    let rand = Math.floor(Math.random() * palettes.length);
    //
    return Palettes[palettes[rand]];
}

function pickerClick(e) {
    showPopup(theSeriesPicker.value.hostElement, e.target, false, true, false);
    theSeriesPicker.value.focus();
    e.preventDefault();
}

function lostFocus() {
    hidePopup(theSeriesPicker.value.hostElement);
}

function checkedItemsChanged(s) {
    // map extra 'visible' property to 'Series.visibility' values
    theChart.value.series.forEach((series) => {
        series.visibility = s.checkedItems.indexOf(series) > -1 ? SeriesVisibility.Visible : SeriesVisibility.Hidden;
    });
}
</script>

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

label {
    margin-right: 3px;
}

.series-picker {
    columns: 2;
    padding: 12px;
    margin-left: 12px;
    margin-top: 26px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
}

#pickerButton {
    cursor: pointer;
    color: #FF8754;
    padding: 6px;
    position: absolute;
    left: 0;
    top: 0
}
</style>
<template> <div class="container-fluid"> <div class="form-group"> <div style="position:relative"> <wj-flex-chart :itemsSource="data" bindingX="country" :palette="palette" :initialized="initializeChart"></wj-flex-chart> <div id="pickerButton" v-on:click="pickerClick"> <span class="column-picker-icon glyphicon glyphicon-cog"></span> </div> </div> <div style="display:none"> <wj-list-box :initialized="initializeLB" :itemsSource="lbData" checkedMemberPath="visible" displayMemberPath="name" :lostFocus="lostFocus" :checkedItemsChanged="checkedItemsChanged"></wj-list-box> </div> </div> </div> </template> <script setup> import { getData } from "./data"; import { isArray, isNumber, toHeaderCase, showPopup, hidePopup } from "@mescius/wijmo"; import { Palettes, Series, SeriesVisibility } from "@mescius/wijmo.chart"; import { ref } from "vue"; const data = ref(getData()); const palette = ref(getRandomPalette()); const lbData = ref(null); const theChart = ref(null); const theSeriesPicker = ref(null); function initializeChart(flex) { theChart.value = flex; // auto-generate series let item = data.value[0]; for (let k in item) { if (isNumber(item[k])) { let series = new Series(); series.binding = k; series.name = toHeaderCase(k); series["visible"] = true; // add 'visible' property for binding theChart.value.series.push(series); } } lbData.value = flex.series; } function initializeLB(flex) { theSeriesPicker.value = flex; } function getRandomPalette() { let palettes = Object.keys(Palettes).filter((prop) => isArray(Palettes[prop])); let rand = Math.floor(Math.random() * palettes.length); // return Palettes[palettes[rand]]; } function pickerClick(e) { showPopup(theSeriesPicker.value.hostElement, e.target, false, true, false); theSeriesPicker.value.focus(); e.preventDefault(); } function lostFocus() { hidePopup(theSeriesPicker.value.hostElement); } function checkedItemsChanged(s) { // map extra 'visible' property to 'Series.visibility' values theChart.value.series.forEach((series) => { series.visibility = s.checkedItems.indexOf(series) > -1 ? SeriesVisibility.Visible : SeriesVisibility.Hidden; }); } </script> <style> body { margin-bottom: 24px; } label { margin-right: 3px; } .series-picker { columns: 2; padding: 12px; margin-left: 12px; margin-top: 26px; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); } #pickerButton { cursor: pointer; color: #FF8754; padding: 6px; position: absolute; left: 0; top: 0 } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexChart Series Picker</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() { let countries = 'US,Canada,Mexico,Japan,Korea,China,Germany,France,UK,Italy,Greece'.split(','), data = []; // for (let i = 0; i < countries.length; i++) { data.push({ country: countries[i], leads: Math.random() * 100000, qualified: Math.random() * 50000, analysis: Math.random() * 5000, quotes: Math.random() * 4000, negotiations: Math.random() * 1000, sales: Math.random() * 800 }); } // return data; }
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