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Angular Data Grid - State Persistence

The DataGrid can persist its state. If a user sorts and filters data, groups, reorders and resizes columns, or makes other changes, the component saves these modifications and restores them when a user reloads the page. Refer to the stateStoring article for a full list of modifications that can be saved.

Backend API
<div id="descContainer" >Sort and filter data, group, reorder and resize columns, change page numbers and page size. Once you are done, <a (click)="onRefreshClick()">refresh</a> the web page to see that the grid’s state is automatically persisted to continue working from where you stopped or you can <a (click)="onStateResetClick()">reset</a> the grid to its initial state.</div > <dx-data-grid id="gridContainer" [dataSource]="orders" [keyExpr]="'ID'" [allowColumnResizing]="true" [allowColumnReordering]="true" [width]="'100%'" [showBorders]="true" > <dxo-selection mode="single"></dxo-selection> <dxo-filter-row [visible]="true"></dxo-filter-row> <dxo-group-panel [visible]="true"></dxo-group-panel> <dxo-state-storing [enabled]="true" type="localStorage" storageKey="storage" ></dxo-state-storing> <dxo-pager [visible]="true" [showPageSizeSelector]="true" [allowedPageSizes]="[5, 10, 20]" ></dxo-pager> <dxi-column dataField="OrderNumber" [width]="130" caption="Invoice Number" ></dxi-column> <dxi-column dataField="OrderDate" sortOrder="desc" dataType="date" ></dxi-column> <dxi-column dataField="SaleAmount" alignment="right" format="currency" ></dxi-column> <dxi-column dataField="Employee"></dxi-column> <dxi-column dataField="CustomerStoreCity" caption="City"></dxi-column> <dxi-column dataField="CustomerStoreState" caption="State" [groupIndex]="0" ></dxi-column> </dx-data-grid>
import { NgModule, Component, enableProdMode, ViewChild, } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxDataGridModule, DxDataGridComponent } from 'devextreme-angular'; import { Order, 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 { @ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent; orders: Order[]; constructor(private service: Service) { this.orders = service.getOrders(); } onStateResetClick() { this.dataGrid.instance.state(null); } onRefreshClick() { window.location.reload(); } } @NgModule({ imports: [ BrowserModule, DxDataGridModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #gridContainer { height: 440px; margin-top: 30px; } ::ng-deep #descContainer a { color: #f05b41; text-decoration: underline; cursor: pointer; } ::ng-deep #descContainer a:hover { text-decoration: none; }
import { Injectable } from '@angular/core'; export class Order { ID: number; OrderNumber: number; OrderDate: Date; SaleAmount: number; Terms: string; TotalAmount: number; CustomerStoreState: string; CustomerStoreCity: string; Employee: string; } const orders: Order[] = [{ ID: 1, OrderNumber: 35703, OrderDate: new Date(2014, 3, 10), SaleAmount: 11800, Terms: '15 Days', TotalAmount: 12175, CustomerStoreState: 'California', CustomerStoreCity: 'Los Angeles', Employee: 'Harv Mudd', }, { ID: 4, OrderNumber: 35711, OrderDate: new Date(2014, 0, 12), SaleAmount: 16050, Terms: '15 Days', TotalAmount: 16550, CustomerStoreState: 'California', CustomerStoreCity: 'San Jose', Employee: 'Jim Packard', }, { ID: 5, OrderNumber: 35714, OrderDate: new Date(2014, 0, 22), SaleAmount: 14750, Terms: '15 Days', TotalAmount: 15250, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 7, OrderNumber: 35983, OrderDate: new Date(2014, 1, 7), SaleAmount: 3725, Terms: '15 Days', TotalAmount: 3850, CustomerStoreState: 'Colorado', CustomerStoreCity: 'Denver', Employee: 'Todd Hoffman', }, { ID: 9, OrderNumber: 36987, OrderDate: new Date(2014, 2, 11), SaleAmount: 14200, Terms: '15 Days', TotalAmount: 14800, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 11, OrderNumber: 38466, OrderDate: new Date(2014, 2, 1), SaleAmount: 7800, Terms: '15 Days', TotalAmount: 8200, CustomerStoreState: 'California', CustomerStoreCity: 'Los Angeles', Employee: 'Harv Mudd', }, { ID: 14, OrderNumber: 39420, OrderDate: new Date(2014, 1, 15), SaleAmount: 20500, Terms: '15 Days', TotalAmount: 9100, CustomerStoreState: 'California', CustomerStoreCity: 'San Jose', Employee: 'Jim Packard', }, { ID: 15, OrderNumber: 39874, OrderDate: new Date(2014, 1, 4), SaleAmount: 9050, Terms: '30 Days', TotalAmount: 19100, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 18, OrderNumber: 42847, OrderDate: new Date(2014, 1, 15), SaleAmount: 20400, Terms: '30 Days', TotalAmount: 20800, CustomerStoreState: 'Wyoming', CustomerStoreCity: 'Casper', Employee: 'Todd Hoffman', }, { ID: 19, OrderNumber: 43982, OrderDate: new Date(2014, 4, 29), SaleAmount: 6050, Terms: '30 Days', TotalAmount: 6250, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 29, OrderNumber: 56272, OrderDate: new Date(2014, 1, 6), SaleAmount: 15850, Terms: '30 Days', TotalAmount: 16350, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 30, OrderNumber: 57429, OrderDate: new Date(2013, 11, 31), SaleAmount: 11050, Terms: '30 Days', TotalAmount: 11400, CustomerStoreState: 'Arizona', CustomerStoreCity: 'Phoenix', Employee: 'Clark Morgan', }, { ID: 32, OrderNumber: 58292, OrderDate: new Date(2014, 4, 13), SaleAmount: 13500, Terms: '15 Days', TotalAmount: 13800, CustomerStoreState: 'California', CustomerStoreCity: 'Los Angeles', Employee: 'Harv Mudd', }, { ID: 36, OrderNumber: 62427, OrderDate: new Date(2014, 0, 27), SaleAmount: 23500, Terms: '15 Days', TotalAmount: 24000, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 39, OrderNumber: 65977, OrderDate: new Date(2014, 1, 5), SaleAmount: 2550, Terms: '15 Days', TotalAmount: 2625, CustomerStoreState: 'Wyoming', CustomerStoreCity: 'Casper', Employee: 'Todd Hoffman', }, { ID: 40, OrderNumber: 66947, OrderDate: new Date(2014, 2, 23), SaleAmount: 3500, Terms: '15 Days', TotalAmount: 3600, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 42, OrderNumber: 68428, OrderDate: new Date(2014, 3, 10), SaleAmount: 10500, Terms: '15 Days', TotalAmount: 10900, CustomerStoreState: 'California', CustomerStoreCity: 'Los Angeles', Employee: 'Harv Mudd', }, { ID: 43, OrderNumber: 69477, OrderDate: new Date(2014, 2, 9), SaleAmount: 14200, Terms: '15 Days', TotalAmount: 14500, CustomerStoreState: 'California', CustomerStoreCity: 'Anaheim', Employee: 'Harv Mudd', }, { ID: 46, OrderNumber: 72947, OrderDate: new Date(2014, 0, 14), SaleAmount: 13350, Terms: '30 Days', TotalAmount: 13650, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 47, OrderNumber: 73088, OrderDate: new Date(2014, 2, 25), SaleAmount: 8600, Terms: '30 Days', TotalAmount: 8850, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Reno', Employee: 'Clark Morgan', }, { ID: 50, OrderNumber: 76927, OrderDate: new Date(2014, 3, 27), SaleAmount: 9800, Terms: '30 Days', TotalAmount: 10050, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 51, OrderNumber: 77297, OrderDate: new Date(2014, 3, 30), SaleAmount: 10850, Terms: '30 Days', TotalAmount: 11100, CustomerStoreState: 'Arizona', CustomerStoreCity: 'Phoenix', Employee: 'Clark Morgan', }, { ID: 56, OrderNumber: 84744, OrderDate: new Date(2014, 1, 10), SaleAmount: 4650, Terms: '30 Days', TotalAmount: 4750, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 57, OrderNumber: 85028, OrderDate: new Date(2014, 4, 17), SaleAmount: 2575, Terms: '30 Days', TotalAmount: 2625, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Reno', Employee: 'Clark Morgan', }, { ID: 59, OrderNumber: 87297, OrderDate: new Date(2014, 3, 21), SaleAmount: 14200, Terms: '30 Days', TotalAmount: 0, CustomerStoreState: 'Wyoming', CustomerStoreCity: 'Casper', Employee: 'Todd Hoffman', }, { ID: 60, OrderNumber: 88027, OrderDate: new Date(2014, 1, 14), SaleAmount: 13650, Terms: '30 Days', TotalAmount: 14050, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 65, OrderNumber: 94726, OrderDate: new Date(2014, 4, 22), SaleAmount: 20500, Terms: '15 Days', TotalAmount: 20800, CustomerStoreState: 'California', CustomerStoreCity: 'San Jose', Employee: 'Jim Packard', }, { ID: 66, OrderNumber: 95266, OrderDate: new Date(2014, 2, 10), SaleAmount: 9050, Terms: '15 Days', TotalAmount: 9250, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 69, OrderNumber: 98477, OrderDate: new Date(2014, 0, 1), SaleAmount: 23500, Terms: '15 Days', TotalAmount: 23800, CustomerStoreState: 'Wyoming', CustomerStoreCity: 'Casper', Employee: 'Todd Hoffman', }, { ID: 70, OrderNumber: 99247, OrderDate: new Date(2014, 1, 8), SaleAmount: 2100, Terms: '15 Days', TotalAmount: 2150, CustomerStoreState: 'Utah', CustomerStoreCity: 'Salt Lake City', Employee: 'Clark Morgan', }, { ID: 78, OrderNumber: 174884, OrderDate: new Date(2014, 3, 10), SaleAmount: 7200, Terms: '30 Days', TotalAmount: 7350, CustomerStoreState: 'Colorado', CustomerStoreCity: 'Denver', Employee: 'Todd Hoffman', }, { ID: 81, OrderNumber: 188877, OrderDate: new Date(2014, 1, 11), SaleAmount: 8750, Terms: '30 Days', TotalAmount: 8900, CustomerStoreState: 'Arizona', CustomerStoreCity: 'Phoenix', Employee: 'Clark Morgan', }, { ID: 82, OrderNumber: 191883, OrderDate: new Date(2014, 1, 5), SaleAmount: 9900, Terms: '30 Days', TotalAmount: 10150, CustomerStoreState: 'California', CustomerStoreCity: 'Los Angeles', Employee: 'Harv Mudd', }, { ID: 83, OrderNumber: 192474, OrderDate: new Date(2014, 0, 21), SaleAmount: 12800, Terms: '30 Days', TotalAmount: 13100, CustomerStoreState: 'California', CustomerStoreCity: 'Anaheim', Employee: 'Harv Mudd', }, { ID: 84, OrderNumber: 193847, OrderDate: new Date(2014, 2, 21), SaleAmount: 14100, Terms: '30 Days', TotalAmount: 14350, CustomerStoreState: 'California', CustomerStoreCity: 'San Diego', Employee: 'Harv Mudd', }, { ID: 85, OrderNumber: 194877, OrderDate: new Date(2014, 2, 6), SaleAmount: 4750, Terms: '30 Days', TotalAmount: 4950, CustomerStoreState: 'California', CustomerStoreCity: 'San Jose', Employee: 'Jim Packard', }, { ID: 86, OrderNumber: 195746, OrderDate: new Date(2014, 4, 26), SaleAmount: 9050, Terms: '30 Days', TotalAmount: 9250, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Las Vegas', Employee: 'Harv Mudd', }, { ID: 87, OrderNumber: 197474, OrderDate: new Date(2014, 2, 2), SaleAmount: 6400, Terms: '30 Days', TotalAmount: 6600, CustomerStoreState: 'Nevada', CustomerStoreCity: 'Reno', Employee: 'Clark Morgan', }, { ID: 88, OrderNumber: 198746, OrderDate: new Date(2014, 4, 9), SaleAmount: 15700, Terms: '30 Days', TotalAmount: 16050, CustomerStoreState: 'Colorado', CustomerStoreCity: 'Denver', Employee: 'Todd Hoffman', }, { ID: 91, OrderNumber: 214222, OrderDate: new Date(2014, 1, 8), SaleAmount: 11050, Terms: '30 Days', TotalAmount: 11250, CustomerStoreState: 'Arizona', CustomerStoreCity: 'Phoenix', Employee: 'Clark Morgan', }]; @Injectable() export class Service { getOrders() { return orders; } }
// 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', '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', '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/compiler': { 'esModule': true, }, '@angular/animations': { 'esModule': true, }, '@angular/forms': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', 'bundles:': '../../../../bundles/', }, map: { 'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.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@24.1.7/cjs', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13', 'devextreme/bundles/dx.all': 'npm:devextreme@24.1.7/bundles/dx.all.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.12', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.56', /* 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`; return acc; }, {}), 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', 'tslib': 'npm:tslib@2.6.1/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@1.28.1/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', '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@7.4.11/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@3.0.13/inferno/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devexpress-diagram@2.2.12/package.json', 'npm:devexpress-gantt@4.1.56/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/24.1.7/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@0.13.3/bundles/zone.umd.min.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>

To enable state persistence, set stateStoring.enabled to true and specify the storageKey and type properties. Depending on the type, the state can be saved to a localStorage or sessionStorage. With localStorage, the state persists across browser sessions; with sessionStorage, it is reset after the current session. This demo uses localStorage.

Alternatively, you can implement the customSave and customLoad functions to save and load the state according to custom logic. In this case, set the type property to "custom".