JavaScript/jQuery Funnel - Update Data

DevExtreme DataSource

NOTE
This technique requires the key specified in the store.

To get the DataSource instance, call the Funnel's getDataSource() method:

jQuery
index.js
function getDataSource() {
    return $("#funnelContainer").dxFunnel("getDataSource");
}
Angular
app.component.ts
app.module.ts
import { Component, ViewChild } from '@angular/core';
import { DxFunnelComponent } from 'devextreme-angular';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    @ViewChild(DxFunnelComponent, { static: false }) funnel: DxFunnelComponent;
    // Prior to Angular 8
    // @ViewChild(DxFunnelComponent) funnel: DxFunnelComponent;
    getDataSource() {
        return this.funnel.instance.getDataSource();
    }
}
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxFunnelModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxFunnelModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }
Vue
App.vue
<template>
    <DxFunnel :ref="funnelRefKey">
        <!-- ... -->
    </DxFunnel>
</template>

<script>
import DxFunnel from 'devextreme-vue/funnel';

const funnelRefKey = "my-funnel";

export default {
    components: {
        DxFunnel
    },
    data() {
        return {
            funnelRefKey
        }
    },
    methods: {
        getDataSource: function() {
            return this.funnel.getDataSource();
        }
    },
    computed: {
        funnel: function() {
            return this.$refs[funnelRefKey].instance;
        }
    }
}
</script>
React
App.js
import { useRef } from 'react';
import Funnel from 'devextreme-react/funnel';

export default function App() {
    const funnel = useRef(null);
    const getDataSource = () => {
        return funnel.current.instance().getDataSource();
    }

    return (
        <Funnel ref={funnel}>
            {/* ... */}
        </Funnel>
    );
}

Then, access the underlying store with the store() method, and call the store's push(changes) method to modify data. The Funnel will be updated automatically.

JavaScript
getDataSource().store().push([
    { type: "update", key: "Oranges", data: { count: 10 } },
    { type: "remove", key: "Apples" }
]);
See Also
jQuery
Angular
Vue
React

JavaScript Array

jQuery

Make changes to the array using standard methods. Then, reassign the updated array to the Funnel using the option(optionName, optionValue) method.

JavaScript
var fruits = [
    { fruit: 'Apples', count: 10 },
    { fruit: 'Oranges', count: 12 },
    { fruit: 'Lemons', count: 15 }
];

fruits.push({ fruit: 'Pineapples', count: 3 });
// Reassigns the "fruits" array to the Funnel 
$("#funnelContainer").dxFunnel("option", "dataSource", fruits);
See Also