Answers for "angular material nested tree"

Angular Material Nested Tree

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { MatTreeModule } from '@angular/material/tree';
import { MatButtonModule } from '@angular/material/button';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    BrowserAnimationsModule,
    MatTreeModule,
    MatButtonModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

angular material nested tree

<mat-tree>
   <mat-nested-tree-node>
     parent node
     <mat-nested-tree-node> -- child node1 </mat-nested-tree-node>
     <mat-nested-tree-node> -- child node2 </mat-nested-tree-node>
   </mat-nested-tree-node>
</mat-tree>