React Range Selector - Use Range Selection for Calculation

import React, { useCallback, useState } from 'react';

import RangeSelector, {

  Margin,

  Scale,

  MinorTick,

  Marker,

  Label,

  Behavior,

  SliderMarker,

} from 'devextreme-react/range-selector';

import { SelectBox } from 'devextreme-react/select-box';

​

const startValue = new Date(2011, 0, 1);

const endValue = new Date(2011, 11, 31);

const behaviorModes = ['onHandleMove', 'onHandleRelease'];

const valueChangeModeLabel = { 'aria-label': 'Value Change Mode' };

function App() {

  const [workingDaysCount, setWorkingDaysCount] = useState(

    calculateWorkdays([startValue, endValue]),

  );

  const [behaviorMode, setBehaviorMode] = useState(behaviorModes[0]);

  const processRange = useCallback(

    (e) => {

      setWorkingDaysCount(calculateWorkdays(e.value));

    },

    [setWorkingDaysCount],

  );

  const setBehavior = useCallback(

    (data) => {

      setBehaviorMode(data.value);

    },

    [setBehaviorMode],

  );

  return (

    <div id="range-selector-demo">

      <RangeSelector

        id="range-selector"

        title="Calculate the Working Days Count in a Date Period"

        onValueChanged={processRange}

      >

        <Margin top={50} />

        <Scale

          startValue={startValue}

          endValue={endValue}

          minorTickInterval="day"

          tickInterval="month"

        >

          <MinorTick visible={false} />

          <Marker visible={false} />

          <Label format="MMM" />

        </Scale>

        <Behavior valueChangeMode={behaviorMode} />

        <SliderMarker format="dd EEEE" />

      </RangeSelector>

      <h2>Working days count: {workingDaysCount}</h2>

      <div className="options">

        <div className="caption">Options</div>

        <div className="option">

          <span>Handle Range Changes </span>

          <SelectBox

            dataSource={behaviorModes}

            width={210}

            inputAttr={valueChangeModeLabel}

            value={behaviorMode}

            onValueChanged={setBehavior}

          />

        </div>

      </div>

    </div>

  );

}

function calculateWorkdays([start, end]) {

  const currentDate = new Date(start);

  let workingDaysCount = 0;

  while (currentDate <= end) {

    if (currentDate.getDay() > 0 && currentDate.getDay() < 6) {

      workingDaysCount += 1;

    }

    currentDate.setDate(currentDate.getDate() + 1);

  }

  return workingDaysCount;

}

export default App;

​

import React from 'react';

import ReactDOM from 'react-dom';

​

import App from './App.tsx';

​

ReactDOM.render(

  <App />,

  document.getElementById('app'),

);

​

window.exports = window.exports || {};

window.config = {

  transpiler: 'ts',

  typescriptOptions: {

    module: 'system',

    emitDecoratorMetadata: true,

    experimentalDecorators: true,

    jsx: 'react',

  },

  meta: {

    'react': {

      'esModule': true,

    },

    'typescript': {

      'exports': 'ts',

    },

    'devextreme/time_zone_utils.js': {

      'esModule': true,

    },

    'devextreme/localization.js': {

      'esModule': true,

    },

    'devextreme/viz/palette.js': {

      'esModule': true,

    },

    'openai': {

      'esModule': true,

    },

  },

  paths: {

    'npm:': 'https://unpkg.com/',

    'bundles:': 'bundles/',

    'externals:': 'bundles/externals/',

  },

  defaultExtension: 'js',

  map: {

    'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',

    'typescript': 'npm:typescript@4.2.4/lib/typescript.js',

    'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',

    'react': 'npm:react@17.0.2/umd/react.development.js',

    'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',

    'prop-types': 'npm:prop-types/prop-types.js',

    'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',

    'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',

    'es6-object-assign': 'npm:es6-object-assign',

    'devextreme': 'npm:devextreme@24.2.6/cjs',

    'devextreme-react': 'npm:devextreme-react@24.2.6/cjs',

    'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',

    'devexpress-diagram': 'npm:devexpress-diagram@2.2.15/dist/dx-diagram.js',

    'devexpress-gantt': 'npm:devexpress-gantt@4.1.60/dist/dx-gantt.js',

    '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12',

    'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',

    'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',

    'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',

    'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',

    'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',

    'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',

    'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',

    'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',

    'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',

    // SystemJS plugins

    'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',

    'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',

    // Prettier

    'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',

    'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',

  },

  packages: {

    'devextreme': {

      defaultExtension: 'js',

    },

    'devextreme-react': {

      main: 'index.js',

    },

    'devextreme/events/utils': {

      main: 'index',

    },

    'devextreme/common/core/events/utils': {

      main: 'index',

    },

    'devextreme/localization/messages': {

      format: 'json',

      defaultExtension: 'json',

    },

    'devextreme/events': {

      main: 'index',

    },

    'es6-object-assign': {

      main: './index.js',

      defaultExtension: 'js',

    },

  },

  packageConfigPaths: [

    'npm:@devextreme/*/package.json',

    'npm:@devextreme/runtime@3.0.12/inferno/package.json',

  ],

  babelOptions: {

    sourceMaps: false,

    stage0: true,

    react: true,

  },

};

System.config(window.config);

​

import React from 'react';

import ReactDOM from 'react-dom';

import App from './App.js';

​

ReactDOM.render(<App />, document.getElementById('app'));

​

<!DOCTYPE html>

<html lang="en">

  <head>↔</head>

​

  <body class="dx-viewport">

    <div class="demo-container">

      <div id="app"></div>

    </div>

  </body>

</html>

​

#range-selector {

  height: 200px;

}

​

h2 {

  text-align: center;

}

​

.options {

  padding: 20px;

  background-color: rgba(191, 191, 191, 0.15);

  position: absolute;

  bottom: 0;

  left: 0;

  right: 0;

}

​

.option {

  margin-top: 10px;

}

​

.caption {

  font-size: 18px;

  font-weight: 500;

}

​

.option > span {

  margin-right: 10px;

}

​

.option > .dx-widget {

  display: inline-block;

  vertical-align: middle;

}

​