Angular Material 7 - Expansion Panel-alljchome-开发者的教程家园

Angular Material 7 Tutorial

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Angular Material 7 - Expansion Panel

The <mat-expansion-panel>, an Angular Directive, is used to create an expandable detail v/s summary view.

<mat-expansion-panel-header> − Represents the header section. Contains summary of panel and acts as control to expand or collapse the panel.

<mat-panel-title> − Represents the panel title.

<mat-panel-description> − Represents the panel summary.

<mat-action-row> − Represents the actions panel at the bottom.

In this chapter, we will showcase the configuration required to draw a expansion control using Angular Material.

Create Angular Apppcation

Follow the following steps to update the Angular apppcation we created in Angular 6 - Project Setup chapter −

Step	Description
1	Create a project with a name materialApp as explained in the Angular 6 - Project Setup chapter.
2	Modify app.module.ts, app.component.ts, app.component.css and app.component.html as explained below. Keep rest of the files unchanged.
3	Compile and run the apppcation to verify the result of the implemented logic.

Following is the content of the modified module descriptor app.module.ts.

import { BrowserModule } from  @angular/platform-browser ;
import { NgModule } from  @angular/core ;
import { AppComponent } from  ./app.component ;
import {BrowserAnimationsModule} from  @angular/platform-browser/animations ;
import {MatExpansionModule, MatInputModule} from  @angular/material 
import {FormsModule, ReactiveFormsModule} from  @angular/forms ;
@NgModule({
   declarations: [
      AppComponent
   ],
   imports: [
      BrowserModule,
      BrowserAnimationsModule,
      MatExpansionModule, MatInputModule,
      FormsModule,
      ReactiveFormsModule
   ],
   providers: [],
   bootstrap: [AppComponent]
})
export class AppModule { }

Following is the content of the modified HTML host file app.component.html.

<mat-expansion-panel>
   <mat-expansion-panel-header>
      <mat-panel-title>
         Personal data
      </mat-panel-title>
      <mat-panel-description>
         Type name and age
      </mat-panel-description>
   </mat-expansion-panel-header>
   <mat-form-field>
      <input matInput placeholder="Name">
   </mat-form-field>
   <mat-form-field>
      <input matInput placeholder="Age">
   </mat-form-field>
</mat-expansion-panel>

Result

Verify the result.

Details

As first, we ve created expansion panel using mat-expansion-panel.

Then, we ve added title, subtitle and content to it.

Angular Material 7 - Expansion Panel

Create Angular Apppcation

Result

Details

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