Control the Behavior

If you need to add spin buttons to the NumberBox, set the showSpinButtons to true.

jQuery
JavaScript
$(function() {
    $("#numberBoxContainer").dxNumberBox({
        value: 20,
        showSpinButtons: true
    });
});
Angular
HTML
TypeScript
<dx-number-box
    [value]="20"
    [showSpinButtons]="true">
</dx-number-box>
import { DxNumberBoxModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxNumberBoxModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxNumberBox
        :value="20"
        :show-spin-buttons="true"
    />
</template>

<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxNumberBox from 'devextreme-vue/number-box';

export default {
    components: {
        DxNumberBox
    }
}
</script>
React
App.js
import React from 'react';

import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import NumberBox from 'devextreme-react/number-box';

class App extends React.Component {
    render() {
        return (
            <NumberBox
                defaultValue={20}
                showSpinButtons={true} />
        );
    }
}
export default App;

To specify the step by which the value is changed, use the step property.

jQuery
JavaScript
$(function() {
    $("#numberBoxContainer").dxNumberBox({
        value: 20,
        showSpinButtons: true,
        step: 10
    });
});
Angular
HTML
TypeScript
<dx-number-box
    [value]="20"
    [showSpinButtons]="true"
    [step]="10">
</dx-number-box>
import { DxNumberBoxModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxNumberBoxModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxNumberBox
        :value="20"
        :show-spin-buttons="true"
        :step="10"
    />
</template>

<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxNumberBox from 'devextreme-vue/number-box';

export default {
    components: {
        DxNumberBox
    }
}
</script>
React
App.js
import React from 'react';

import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import NumberBox from 'devextreme-react/number-box';

class App extends React.Component {
    render() {
        return (
            <NumberBox
                defaultValue={20}
                showSpinButtons={true}
                step={10} />
        );
    }
}
export default App;
See Also