This section explains how to create and demonstrate the basic usage of the Query Builder module.
The list of dependencies required to use the Query Builder module in your application is given below:
|-- @syncfusion/ej2-angular-querybuilder
|-- @syncfusion/ej2-angular-base
|-- @syncfusion/ej2-base
|-- @syncfusion/ej2-querybuilder
|-- @syncfusion/ej2-datamanager
|-- @syncfusion/ej2-dropdowns
|-- @syncfusion/ej2-calenders
|-- @syncfusion/ej2-inputs
You can use Angular CLI to setup your Angular applications. To install Angular CLI use the following command.
npm install -g @angular/cli
Start a new Angular application using below Angular CLI command.
ng new my-app
cd my-app
To install Query Builder package, use the following command.
npm install @syncfusion/ej2-angular-querybuilder --save
The above package installs Query Builder dependencies which are required to render the component in the Angular environment.
Import Query Builder module into Angular application(app.module.ts) from the package @syncfusion/ej2-angular-querybuilder
.
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
// Importing QueryBuilderModule from ej2-angular-querybuilder package.
import { QueryBuilderModule } from '@syncfusion/ej2-angular-querybuilder';
import { AppComponent } from './app.component';
@NgModule({
imports: [ BrowserModule, QueryBuilderModule ], // Declaration of QueryBuilder module into NgModule.
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
Modify the template in app.component.ts
file to render the Query Builder component.
import { Component } from '@angular/core';
@Component({
selector: 'app-root',
template: `<!-- To render Query Builder. -->
<ejs-querybuilder width="70%">
<e-columns>
<e-column field="EmployeeID" label="Employee ID" type="number"></e-column>
<e-column field="FirstName" label="First Name" type="string"></e-column>
<e-column field="TitleOfCourtesy" label="Title Of Courtesy" type="boolean" [values]="values"></e-column>
<e-column field="Title" label="Title" type="string"></e-column>
<e-column field="HireDate" label="Hire Date" type="date" format="dd/MM/yyyy"></e-column>
<e-column field="Country" label="Country" type="string"></e-column>
<e-column field="City" label="City" type="string"></e-column>
</e-columns>
</ejs-querybuilder>`
})
export class AppComponent { }
Add Query Builder component’s styles as given below in style.css
.
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-buttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-splitbuttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-dropdowns/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-calendars/styles/material.css";
@import "../node_modules/@syncfusion/ej2-popups/styles/material.css";
@import "../node_modules/@syncfusion/ej2-querybuilder/styles/material.css";
Run the application in the browser using the following command:
ng serve
The following example shows a basic Query Builder component.
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { QueryBuilderModule } from '@syncfusion/ej2-angular-querybuilder';
import { AppComponent } from './app.component';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);
/**
* Module
*/
@NgModule({
imports: [
BrowserModule,
QueryBuilderModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
To render the Query Builder component with rule, use the rule
property.
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { QueryBuilderModule } from '@syncfusion/ej2-angular-querybuilder';
import { AppComponent } from './app.component';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);
/**
* Module
*/
@NgModule({
imports: [
BrowserModule,
QueryBuilderModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }