React Form - Customize Fields at Runtime

import React, { useCallback, useMemo, useState } from 'react'; import 'devextreme-react/text-area'; import Form, { GroupItem, SimpleItem, Label, ButtonItem, } from 'devextreme-react/form'; import type { CheckBoxTypes, ICheckBoxOptions } from 'devextreme-react/check-box'; import type { ITextBoxOptions } from 'devextreme-react/text-box'; import type { IButtonOptions } from 'devextreme-react/button'; import { employee } from './data.ts'; import type { Employee } from './types.ts'; const App = () => { const [phones, setPhones] = useState<string[]>(employee.Phones); const [isHomeAddressVisible, setIsHomeAddressVisible] = useState<CheckBoxTypes.Properties['value']>(true); const formData = useMemo((): Employee => ({ ...employee, Phones: phones }), [phones]); const CheckBoxOptions = useMemo((): ICheckBoxOptions => ({ text: 'Show Address', value: isHomeAddressVisible, onValueChanged: (e: CheckBoxTypes.ValueChangedEvent): void => { setIsHomeAddressVisible(e.component.option('value')); }, }), [isHomeAddressVisible]); const generateNewPhoneOptions = useCallback((index: number): ITextBoxOptions => ({ mask: '(X00) 000-0000', maskRules: { X: /[01-9]/ }, buttons: [{ name: 'trash', location: 'after', options: { stylingMode: 'text', icon: 'trash', onClick: (): void => { const newPhones = phones.slice(0, index).concat(phones.slice(index + 1)); setPhones(newPhones); }, }, }], }), [phones]); const PhoneOptions = useMemo((): ITextBoxOptions[] => { const options: ITextBoxOptions[] = []; for (let i = 0; i < phones.length; i += 1) { options.push(generateNewPhoneOptions(i)); } return options; }, [phones, generateNewPhoneOptions]); const PhoneButtonOptions = useMemo((): IButtonOptions => ({ icon: 'add', text: 'Add phone', onClick: (): void => { setPhones((prevPhones: string[]): string[] => [...prevPhones, '']); }, }), []); return ( <> <div className="long-title"><h3>Personal details</h3></div> <div className="form-container"> <Form colCount={2} id="form" formData={formData}> <GroupItem> <GroupItem> <GroupItem caption="Personal Data"> <SimpleItem dataField="FirstName" /> <SimpleItem dataField="LastName" /> <SimpleItem editorType="dxCheckBox" editorOptions={CheckBoxOptions} /> </GroupItem> </GroupItem> <GroupItem> <GroupItem caption="Home Address" name="HomeAddress" visible={!!isHomeAddressVisible}> <SimpleItem dataField="Address" /> <SimpleItem dataField="City" /> </GroupItem> </GroupItem> </GroupItem> <GroupItem caption="Phones" name="phones-container"> <GroupItem name="phones"> {PhoneOptions.map((options: ITextBoxOptions, index: number) => <SimpleItem key={`Phones${index}`} dataField={`Phones[${index}]`} editorOptions={options}> <Label text={`Phone ${index + 1}`} /> </SimpleItem>)} </GroupItem> <ButtonItem horizontalAlignment="left" cssClass="add-phone-button" buttonOptions={PhoneButtonOptions}> </ButtonItem> </GroupItem> </Form> </div> </> ); }; export default App;