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Backend API
<dx-filter-builder
[fields]="fields"
[(value)]="filter"
[groupOperations]="groupOperations"
[customOperations]="customOperations"
(onInitialized)="updateTexts($event)"
(onValueChanged)="updateTexts($event)"
>
<dx-tag-box
*dxTemplate="let condition of 'tagBoxTemplate'"
[value]="condition.value"
[items]="categories"
[inputAttr]="{ 'aria-label': 'Category' }"
(onValueChanged)="condition.setValue($event.value)"
width="auto"
>
</dx-tag-box>
</dx-filter-builder>
<div class="results">
<div>
<b>Value</b>
<pre>{{ filterText }}</pre>
</div>
<div>
<b>DataSource's filter expression</b>
<pre>{{ dataSourceText }}</pre>
</div>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxListModule, DxButtonModule, DxTagBoxModule } from 'devextreme-angular';
import { DxFilterBuilderModule, DxFilterBuilderComponent, DxFilterBuilderTypes } from 'devextreme-angular/ui/filter-builder';
import { Service } from './app.service';
type FilterBuilderValue = ReturnType<DxFilterBuilderComponent['instance']['getFilterExpression']>;
if (!/localhost/.test(document.location.host)) {
enableProdMode();
}
const anyOfOperation = {
name: 'anyof',
caption: 'Is any of',
icon: 'check',
editorTemplate: 'tagBoxTemplate',
calculateFilterExpression: (filterValue: string[], field: Record<string, unknown>) => filterValue?.flatMap(
(value) => [[field.dataField, '=', value], 'or'],
).slice(0, -1),
} as const;
@Component({
selector: 'demo-app',
providers: [Service],
templateUrl: `app/app.component.html`,
styleUrls: [`app/app.component.css`],
})
export class AppComponent {
filterText: string;
dataSourceText: string;
fields: Array<string>;
filter: Array<string[] | string>;
categories: string[];
customOperations: Array<typeof anyOfOperation> = [anyOfOperation];
groupOperations = ['and', 'or'];
constructor(service: Service) {
this.fields = service.getFields();
this.filter = service.getFilter();
this.categories = service.getCategories();
}
updateTexts(e: DxFilterBuilderTypes.InitializedEvent) {
this.filterText = AppComponent.formatValue(e.component.option('value'));
this.dataSourceText = AppComponent.formatValue(e.component.getFilterExpression());
}
private static formatValue(value: FilterBuilderValue, spaces = 0) {
if (value && Array.isArray(value[0])) {
const TAB_SIZE = 4;
spaces = spaces || TAB_SIZE;
return `[${AppComponent.getLineBreak(spaces)}${
(value as string[]).map(
(item: FilterBuilderValue) => (Array.isArray(item[0])
? AppComponent.formatValue(item, spaces + TAB_SIZE)
: JSON.stringify(item)),
).join(`,${AppComponent.getLineBreak(spaces)}`)
}${AppComponent.getLineBreak(spaces - TAB_SIZE)}]`;
}
return JSON.stringify(value);
}
private static getLineBreak = (spaces: number) => `\r\n${new Array(spaces + 1).join(' ')}`;
}
@NgModule({
imports: [
BrowserModule,
DxListModule,
DxButtonModule,
DxTagBoxModule,
DxFilterBuilderModule,
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .results {
margin-top: 50px;
display: flex;
justify-content: space-between;
}
::ng-deep .results > div {
flex-basis: 49%;
max-width: 50%;
background-color: rgba(191, 191, 191, 0.15);
position: relative;
}
::ng-deep .results b {
position: absolute;
top: -25px;
}
::ng-deep .results pre {
padding: 10px 20px;
height: 100%;
font-size: 13px;
overflow: auto;
box-sizing: border-box;
}
::ng-deep .dx-tagbox {
min-width: 150px;
}
::ng-deep .dx-filterbuilder {
background-color: transparent;
box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.14), 0 0 2px 0 rgba(0, 0, 0, 0.12);
border-radius: 6px;
padding: 15px;
margin: 24px;
}
::ng-deep .dx-filterbuilder .dx-numberbox {
width: 80px;
}
import { Injectable } from '@angular/core';
export class Product {
ID: number;
Name: string;
Price: number;
Current_Inventory: number;
Backorder: number;
Manufacturing: number;
Category: string;
ImageSrc: string;
}
const filter: Array<any> = [
['Category', 'anyof', ['Automation', 'Monitors']],
'or',
[
['Category', '=', 'Televisions'],
'and',
['Price', 'between', [2000, 4000]],
],
];
const categories: string[] = [
'Video Players',
'Televisions',
'Monitors',
'Projectors',
'Automation',
];
const fields: Array<any> = [{
dataField: 'Name',
}, {
dataField: 'Price',
dataType: 'number',
format: 'currency',
}, {
dataField: 'Current_Inventory',
dataType: 'number',
caption: 'Inventory',
}, {
dataField: 'Category',
filterOperations: ['=', 'anyof'],
lookup: {
dataSource: categories,
},
},
];
@Injectable()
export class Service {
getFields(): Array<any> {
return fields;
}
getCategories(): string[] {
return categories;
}
getFilter(): Array<any> {
return filter;
}
}
// 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@24.1.6/cjs',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'devextreme/bundles/dx.all': 'npm:devextreme@24.1.6/bundles/dx.all.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.11',
'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@2.2.11/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/24.1.6/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.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>