Angular PrimeNG TreeTable Scroll
Angular PrimeNG is an open-source framework with a rich set of native Angular UI components that are used for great styling and this framework is used to make responsive websites with very much ease. This article will show us how to use TreeTable Scrolling in Angular PrimeNG.
Angular PrimeNG TreeTable Scroll enables scroll in the TreeTable component. So using a scroll, we can easily customize the TreeTable component and show Table Data according to the best user experience.
Syntax:
<p-treeTable
[scrollable]="true"
scrollHeight='px' >
</p-treeTable>
Creating Angular application & Module Installation:
Step 1: Create an Angular application using the following command.
ng new appname
Step 2: After creating your project folder i.e. appname, move to it using the following command.
cd appname
Step 3: Install PrimeNG in your given directory.
npm install primeng --save npm install primeicons --save
Project Structure: It will look like the following:
Project Structure
Example 1: Below is a simple example that demonstrates the use of the Angular PrimeNG TreeTable Scroll.
app.component.html
<h2 style="color: green"> w3wiki </h2> <h4> Angular PrimeNG TreeTable Scroll </h4> <p-treeTable [value]="tableData" [scrollable]="true" scrollHeight="250px"> <ng-template pTemplate="header"> <tr> <th>Name</th> <th>Age</th> </tr> </ng-template> <ng-template pTemplate="body" let-rowNode let-row="rowData"> <tr [ttRow]="rowNode"> <td> <p-treeTableToggler [rowNode]="rowNode"> </p-treeTableToggler> {{ row.name }} </td> <td>{{ row.age }}</td> </tr> </ng-template> </p-treeTable> |
app.component.ts
import { Component } from '@angular/core'; import { NodeService } from './nodeservice'; import { TreeNode } from 'primeng/api'; @Component({ selector: 'app-root', templateUrl: './app.component.html', }) export class AppComponent { tableData: TreeNode[] = []; constructor(private nodeService: NodeService) { } ngOnInit() { this.tableData = [ { data: { name: 'David', age: '40', }, children: [ { data: { name: 'Nathan', age: '16', }, }, { data: { name: 'Shane', age: '14', }, }, ], }, { data: { name: 'Warner', age: '55', }, children: [ { data: { name: 'Michelle', age: '20', }, }, { data: { name: 'Charlie', age: '24', }, }, ], }, { data: { name: 'Max', age: '55', }, children: [ { data: { name: 'Michelle', age: '20', }, }, { data: { name: 'Charlie', age: '24', }, }, ], }, { data: { name: 'Willy', age: '55', }, children: [ { data: { name: 'Michelle', age: '20', }, }, { data: { name: 'Charlie', age: '24', }, }, ], }, { data: { name: 'Miley', age: '55', }, children: [ { data: { name: 'Michelle', age: '20', }, }, { data: { name: 'Charlie', age: '24', }, }, ], }, { data: { name: 'Sam', age: '55', }, children: [ { data: { name: 'Michelle', age: '20', }, }, { data: { name: 'Charlie', age: '24', }, }, ], }, { data: { name: 'James', age: '55', }, children: [ { data: { name: 'Michelle', age: '20', }, }, { data: { name: 'Charlie', age: '24', }, }, ], }, ]; } } |
app.module.ts
import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { HttpClientModule } from '@angular/common/http'; import { BrowserAnimationsModule } from '@angular/platform-browser/animations'; import { AppComponent } from './app.component'; import { NodeService } from './nodeservice'; import { TreeTableModule } from 'primeng/treetable'; @NgModule({ imports: [ BrowserModule, BrowserAnimationsModule, TreeTableModule, HttpClientModule, FormsModule, ], declarations: [AppComponent], bootstrap: [AppComponent], providers: [NodeService], }) export class AppModule { } |
Output:
Example 2: Below is a simple example demonstrating the use of the Angular PrimeNG TreeTable Scroll. In this example, we are integrating Horizontal and vertical sorting.
app.component.html
<h2 style="color: green">w3wiki</h2> <h4>Angular PrimeNG TreeTable Scroll</h4> <p-treeTable [columns]="cols" [value]="tableData" [scrollable]="true" [style]="{ width: '500px' }" scrollHeight="300px"> <ng-template pTemplate="colgroup" let-columns> <colgroup> <col *ngFor="let col of columns" style="width:350px" /> </colgroup> </ng-template> <ng-template pTemplate="header" let-columns> <tr> <th *ngFor="let col of columns"> {{ col.header }} </th> </tr> </ng-template> <ng-template pTemplate="body" let-rowNode let-rowData="rowData" let-columns="columns"> <tr> <td *ngFor="let col of columns; let i = index"> <p-treeTableToggler [rowNode]="rowNode" *ngIf="i == 0"> </p-treeTableToggler> {{ rowData[col.field] }} </td> </tr> </ng-template> </p-treeTable> |
app.component.ts
import { Component, OnInit } from '@angular/core'; import { NodeService } from './nodeservice'; import { TreeNode } from 'primeng/api'; @Component({ selector: 'app-root', templateUrl: './app.component.html', }) export class AppComponent { tableData: TreeNode[] = []; cols: any[] = []; constructor(private nodeService: NodeService) { } ngOnInit() { this.cols = [ { field: 'name', header: 'First Name' }, { field: 'age', header: 'Age' }, ]; this.tableData = [ { data: { name: 'A', age: '40', }, children: [ { data: { name: 'B', age: '16', }, }, { data: { name: 'C', age: '14', }, }, ], }, { data: { name: 'D', age: '55', }, children: [ { data: { name: 'E', age: '20', }, }, { data: { name: 'F', age: '24', }, }, ], }, { data: { name: 'G', age: '55', }, children: [ { data: { name: 'H', age: '20', }, }, { data: { name: 'I', age: '24', }, }, ], }, { data: { name: 'J', age: '55', }, children: [ { data: { name: 'K', age: '20', }, }, { data: { name: 'L', age: '24', }, }, ], }, { data: { name: 'M', age: '55', }, children: [ { data: { name: 'N', age: '20', }, }, { data: { name: 'O', age: '24', }, }, ], }, { data: { name: 'P', age: '55', }, children: [ { data: { name: 'Q', age: '20', }, }, { data: { name: 'R', age: '24', }, }, ], }, { data: { name: 'S', age: '55', }, children: [ { data: { name: 'T', age: '20', }, }, { data: { name: 'U', age: '24', }, }, ], }, ]; } } |
app.module.ts
import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { HttpClientModule } from '@angular/common/http'; import { BrowserAnimationsModule } from '@angular/platform-browser/animations'; import { AppComponent } from './app.component'; import { NodeService } from './nodeservice'; import { TreeTableModule } from 'primeng/treetable'; @NgModule({ imports: [ BrowserModule, BrowserAnimationsModule, TreeTableModule, HttpClientModule, FormsModule, ], declarations: [AppComponent], bootstrap: [AppComponent], providers: [NodeService], }) export class AppModule { } |
Output:
Example 3: Below is a simple example that demonstrates the use of the Angular PrimeNG TreeTable Scroll, In this example, we are freezing a column and then applying scroll on the TreeTable.
app.component.html
<h2 style="color: green;">w3wiki</h2> <h4>Angular PrimeNG TreeTable Scroll</h4> <p-treeTable [value]="tableData" [columns]="scrollableCols" [frozenColumns]="frozenCols" [scrollable]="true" scrollHeight="200px" frozenWidth="200px" [style]="{ width: '400px' }"> <ng-template pTemplate="colgroup" let-columns> <colgroup> <col *ngFor="let col of columns" style="width:300px" /> </colgroup> </ng-template> <ng-template pTemplate="header" let-columns> <tr> <th *ngFor="let col of columns"> {{ col.header }} </th> </tr> </ng-template> <ng-template pTemplate="body" let-rowData="rowData" let-columns="columns"> <tr style="height: 64px"> <td *ngFor="let col of columns; let i = index"> {{ rowData[col.field] }} </td> </tr> </ng-template> <ng-template pTemplate="frozenbody" let-rowNode let-rowData="rowData"> <tr> <td> <p-treeTableToggler [rowNode]="rowNode"> </p-treeTableToggler> {{ rowData.name }} </td> </tr> </ng-template> </p-treeTable> |
app.component.ts
import { Component } from '@angular/core'; import { NodeService } from './nodeservice'; import { TreeNode } from 'primeng/api'; @Component({ selector: 'app-root', templateUrl: './app.component.html', }) export class AppComponent { tableData: TreeNode[] = []; cols: any[] = []; scrollableCols: any[] = []; frozenCols: any[] = []; constructor(private nodeService: NodeService) { } ngOnInit() { this.cols = [ { field: 'name', header: 'First Name' }, { field: 'age', header: 'Age' }, ]; this.scrollableCols = [{ field: 'age', header: 'Age' }]; this.frozenCols = [{ field: 'name', header: 'First Name' }]; this.tableData = [ { data: { name: 'A', age: '40', }, children: [ { data: { name: 'B', age: '16', }, }, { data: { name: 'C', age: '14', }, }, ], }, { data: { name: 'D', age: '55', }, children: [ { data: { name: 'E', age: '20', }, }, { data: { name: 'F', age: '24', }, }, ], }, { data: { name: 'G', age: '55', }, children: [ { data: { name: 'H', age: '20', }, }, { data: { name: 'I', age: '24', }, }, ], }, { data: { name: 'J', age: '55', }, children: [ { data: { name: 'K', age: '20', }, }, { data: { name: 'L', age: '24', }, }, ], }, { data: { name: 'M', age: '55', }, children: [ { data: { name: 'N', age: '20', }, }, { data: { name: 'O', age: '24', }, }, ], }, { data: { name: 'P', age: '55', }, children: [ { data: { name: 'Q', age: '20', }, }, { data: { name: 'R', age: '24', }, }, ], }, { data: { name: 'S', age: '55', }, children: [ { data: { name: 'T', age: '20', }, }, { data: { name: 'U', age: '24', }, }, ], }, ]; } } |
app.module.ts
import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { HttpClientModule } from '@angular/common/http'; import { BrowserAnimationsModule } from '@angular/platform-browser/animations'; import { AppComponent } from './app.component'; import { NodeService } from './nodeservice'; import { TreeTableModule } from 'primeng/treetable'; @NgModule({ imports: [ BrowserModule, BrowserAnimationsModule, TreeTableModule, HttpClientModule, FormsModule, ], declarations: [AppComponent], bootstrap: [AppComponent], providers: [NodeService], }) export class AppModule { } |
Output:
Reference: https://primefaces.org/primeng/treetable/scroll
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