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Angular Tree List - Column Reordering

TreeList columns have the same order as fields in data objects. You can use the columns array to specify a different order. To reorder a column at runtime, change column.visibleIndex property.

Users can drag and drop column headers to reorder columns. To enable this feature, set the allowColumnReordering property to true. If you do not want users to drag a specific column, disable column.allowReordering property.

Backend API
<dx-tree-list id="employees" [dataSource]="employees" keyExpr="ID" parentIdExpr="Head_ID" [allowColumnReordering]="true" [columnAutoWidth]="true" [showBorders]="true" [showRowLines]="true" [autoExpandAll]="true" > <dxo-column-fixing [enabled]="true"></dxo-column-fixing> <dxi-column caption="Employee" [fixed]="true" [calculateCellValue]="calculateCellValue" ></dxi-column> <dxi-column dataField="Position" alignment="right" [fixed]="true" ></dxi-column> <dxi-column dataField="Address"></dxi-column> <dxi-column dataField="City"></dxi-column> <dxi-column dataField="Zipcode"></dxi-column> <dxi-column dataField="State"></dxi-column> <dxi-column dataField="Department"></dxi-column> <dxi-column dataField="BirthDate" dataType="date"></dxi-column> <dxi-column dataField="HireDate" dataType="date"></dxi-column> <dxi-column dataField="HomePhone"></dxi-column> <dxi-column dataField="MobilePhone"></dxi-column> <dxi-column dataField="Email"></dxi-column> <dxi-column dataField="Skype"></dxi-column> </dx-tree-list>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxTreeListModule } from 'devextreme-angular'; import { Employee, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: `app/app.component.html`, styleUrls: [`app/app.component.css`], providers: [Service], }) export class AppComponent { employees: Employee[]; constructor(service: Service) { this.employees = service.getEmployees(); } calculateCellValue = ({ Title, FirstName, LastName }) => [Title, FirstName, LastName].join(' '); } @NgModule({ imports: [ BrowserModule, DxTreeListModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #employees { max-height: 440px; }
import { Injectable } from '@angular/core'; export class Employee { ID: number; Head_ID: number; FirstName: string; LastName: string; Position: string; BirthDate: string; HireDate: string; Title: string; Address: string; City: string; State: string; Zipcode: number; Email: string; Skype: string; HomePhone: string; DepartmentID: number; Department: string; MobilePhone: string; } const employees: Employee[] = [{ ID: 1, Head_ID: 0, FirstName: 'John', LastName: 'Heart', Position: 'CEO', BirthDate: '1964/03/16', HireDate: '1995/01/15', Title: 'Mr.', Address: '351 S Hill St.', City: 'Los Angeles', State: 'California', Zipcode: 90013, Email: 'jheart@dx-email.com', Skype: 'jheartDXskype', HomePhone: '(213) 555-9208', DepartmentID: 6, Department: 'Management', MobilePhone: '(213) 555-9392', }, { ID: 2, Head_ID: 1, FirstName: 'Olivia', LastName: 'Peyton', Position: 'Sales Assistant', BirthDate: '1981/06/03', HireDate: '2012/05/14', Title: 'Mrs.', Address: '807 W Paseo Del Mar', City: 'Los Angeles', State: 'California', Zipcode: 90036, Email: 'oliviap@dx-email.com', Skype: 'oliviapDXskype', HomePhone: '(310) 555-2728', DepartmentID: 5, Department: 'Human Resources', MobilePhone: '(818) 555-2387', }, { ID: 3, Head_ID: 1, FirstName: 'Robert', LastName: 'Reagan', Position: 'CMO', BirthDate: '1974/09/07', HireDate: '2002/11/08', Title: 'Mr.', Address: '4 Westmoreland Pl.', City: 'Bentonville', State: 'Arkansas', Zipcode: 91103, Email: 'robertr@dx-email.com', Skype: 'robertrDXskype', HomePhone: '(818) 555-2438', DepartmentID: 6, Department: 'Management', MobilePhone: '(818) 555-2387', }, { ID: 4, Head_ID: 1, FirstName: 'Greta', LastName: 'Sims', Position: 'HR Manager', BirthDate: '1977/11/22', HireDate: '1998/04/23', Title: 'Ms.', Address: '1700 S Grandview Dr.', State: 'Georgia', City: 'Atlanta', Zipcode: 91803, Email: 'gretas@dx-email.com', Skype: 'gretasDXskype', HomePhone: '(818) 555-0976', DepartmentID: 5, Department: 'Human Resources', MobilePhone: '(818) 555-6546', }, { ID: 5, Head_ID: 1, FirstName: 'Brett', LastName: 'Wade', Position: 'IT Manager', BirthDate: '1968/12/01', HireDate: '2009/03/06', Title: 'Mr.', Address: '1120 Old Mill Rd.', State: 'Idaho', City: 'Boise', Zipcode: 91108, Email: 'brettw@dx-email.com', Skype: 'brettwDXskype', HomePhone: '(626) 555-5985', DepartmentID: 7, Department: 'IT', MobilePhone: '(626) 555-0358', }, { ID: 6, Head_ID: 3, FirstName: 'Sandra', LastName: 'Johnson', Position: 'Controller', BirthDate: '1974/11/15', HireDate: '2005/05/11', Title: 'Mrs.', Address: '4600 N Virginia Rd.', State: 'Utah', City: 'Beaver', Zipcode: 90807, Email: 'sandraj@dx-email.com', Skype: 'sandrajDXskype', HomePhone: '(562) 555-8272', DepartmentID: 5, Department: 'Human Resources', MobilePhone: '(562) 555-2082', }, { ID: 7, Head_ID: 7, FirstName: 'Kevin', LastName: 'Carter', Position: 'Shipping Manager', BirthDate: '1978/01/09', HireDate: '2009/08/11', Title: 'Mr.', Address: '424 N Main St.', State: 'California', City: 'San Diego', Zipcode: 90012, Email: 'kevinc@dx-email.com', Skype: 'kevincDXskype', HomePhone: '(213) 555-8038', DepartmentID: 3, Department: 'Shipping', MobilePhone: '(213) 555-2840', }, { ID: 8, Head_ID: 4, FirstName: 'Cynthia', LastName: 'Stanwick', Position: 'HR Assistant', BirthDate: '1985/06/05', HireDate: '2008/03/24', Title: 'Ms.', Address: '2211 Bonita Dr.', City: 'Little Rock', State: 'Arkansas', Zipcode: 90265, Email: 'cindys@dx-email.com', Skype: 'cindysDXskype', HomePhone: '(818) 555-6808', DepartmentID: 4, Department: 'Engineering', MobilePhone: '(818) 555-6655', }, { ID: 9, Head_ID: 3, FirstName: 'Kent', LastName: 'Samuelson', Position: 'Ombudsman', BirthDate: '1972/09/11', HireDate: '2009/04/22', Title: 'Dr.', Address: '12100 Mora Dr', City: 'St. Louis', State: 'Missouri', Zipcode: 90272, Email: 'kents@dx-email.com', Skype: 'kentsDXskype', HomePhone: '(562) 555-1328', DepartmentID: 26, Department: 'Human Resources', MobilePhone: '(562) 555-9282', }, { ID: 10, Head_ID: 2, FirstName: 'Taylor', LastName: 'Riley', Position: 'Network Admin', BirthDate: '1982/08/14', HireDate: '2012/04/14', Title: 'Mr.', Address: '7776 Torreyson Dr', City: 'San Jose', State: 'California', Zipcode: 90012, Email: 'taylorr@dx-email.com', Skype: 'taylorrDXskype', HomePhone: '(310) 555-9712', DepartmentID: 5, Department: 'Human Resources', MobilePhone: '(310) 555-7276', }]; @Injectable() export class Service { getEmployees(): Employee[] { return employees; } }
// In real applications, you should not transpile code in the browser. // You can see how to create your own application with Angular and DevExtreme here: // https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ const componentNames = [ 'accordion', 'action-sheet', 'autocomplete', 'bar-gauge', 'box', 'bullet', 'button-group', 'button', 'calendar', 'chart', 'chat', 'check-box', 'circular-gauge', 'color-box', 'context-menu', 'data-grid', 'date-box', 'date-range-box', 'defer-rendering', 'diagram', 'draggable', 'drawer', 'drop-down-box', 'drop-down-button', 'file-manager', 'file-uploader', 'filter-builder', 'form', 'funnel', 'gallery', 'gantt', 'html-editor', 'linear-gauge', 'list', 'load-indicator', 'load-panel', 'lookup', 'map', 'menu', 'multi-view', 'nested', 'number-box', 'pagination', 'pie-chart', 'pivot-grid-field-chooser', 'pivot-grid', 'polar-chart', 'popover', 'popup', 'progress-bar', 'radio-group', 'range-selector', 'range-slider', 'recurrence-editor', 'resizable', 'responsive-box', 'sankey', 'scheduler', 'scroll-view', 'select-box', 'slider', 'sortable', 'sparkline', 'speed-dial-action', 'splitter', 'switch', 'tab-panel', 'tabs', 'tag-box', 'text-area', 'text-box', 'tile-view', 'toast', 'toolbar', 'tooltip', 'tree-list', 'tree-map', 'tree-view', 'validation-group', 'validation-summary', 'validator', 'vector-map', ]; window.exports = window.exports || {}; window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, '@angular/platform-browser-dynamic': { 'esModule': true, }, '@angular/platform-browser': { 'esModule': true, }, '@angular/core': { 'esModule': true, }, '@angular/common': { 'esModule': true, }, '@angular/common/http': { 'esModule': true, }, '@angular/animations': { 'esModule': true, }, '@angular/forms': { 'esModule': true, }, 'openai': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', 'bundles:': '../../../../bundles/', 'externals:': '../../../../bundles/externals/', }, 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', /* @angular */ '@angular/compiler': 'bundles:@angular/compiler.umd.js', '@angular/platform-browser-dynamic': 'bundles:@angular/platform-browser-dynamic.umd.js', '@angular/core': 'bundles:@angular/core.umd.js', '@angular/core/primitives/signals': 'bundles:@angular/core.primitives.signals.umd.js', '@angular/common': 'bundles:@angular/common.umd.js', '@angular/common/http': 'bundles:@angular/common-http.umd.js', '@angular/platform-browser': 'bundles:@angular/platform-browser.umd.js', '@angular/platform-browser/animations': 'bundles:@angular/platform-browser.umd.js', '@angular/forms': 'bundles:@angular/forms.umd.js', /* devextreme */ 'devextreme': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/cjs', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'devextreme/bundles/dx.all': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/bundles/dx.all.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.5', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.54', /* devextreme-angular umd maps */ 'devextreme-angular': 'bundles:devextreme-angular/devextreme-angular.umd.js', 'devextreme-angular/core': 'bundles:devextreme-angular/devextreme-angular-core.umd.js', 'devextreme-angular/http': 'bundles:devextreme-angular/devextreme-angular-http.umd.js', ...componentNames.reduce((acc, name) => { acc[`devextreme-angular/ui/${name}`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}.umd.js`; acc[`devextreme-angular/ui/${name}/nested`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}-nested.umd.js`; return acc; }, {}), 'tslib': 'npm:tslib/tslib.js', 'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js', 'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.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', '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', // Prettier 'prettier/standalone': 'npm:prettier@2.8.8/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, 'rxjs': { defaultExtension: 'js', }, 'rxjs/operators': { defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.12/inferno/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devexpress-diagram@2.2.5/package.json', 'npm:devexpress-gantt@4.1.54/package.json', ], }; System.config(window.config); // System.import('@angular/compiler').catch(console.error.bind(console));
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.2.3/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.14.10/bundles/zone.umd.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.13/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script src="config.js"></script> <script> System.import("app").catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>

This demo shows how fixed columns behave during user-initiated reordering. Users can drag and drop columns within the following areas (but not between them):

  • Columns fixed to the left
  • Non-fixed columns
  • Columns fixed to the right

Sticky columns (fixed with the 'sticky' position) behave like non-fixed columns during reordering (even if they are in a state where they are attached to a border/fixed column). To see sticky columns in this demo, right-click a column to open a context menu. Choose "Set Fixed Position -> Sticky" to stick a column.