极客教程Angular PrimeNG TreeTable列组
Angular PrimeNG是一个开源框架，拥有丰富的原生Angular UI组件，可用于出色的造型，这个框架可用于制作响应式网站，非常方便。这篇文章将向我们展示如何在Angular PrimeNG中使用TreeTable列分组。
Angular PrimeNG TreeTable Column Group使TreeTable组件中的表列分组。列可以很容易地使用模板进行分组，这使得表格更具互动性和用户友好性。列的分组可以使用colspan和rowspan来完成。
语法:
<ng-template pTemplate="header">
<tr>
<th colspan="2">Col1</th>
</tr>
<tr>
<th>Col2</th>
<th>Col3</th>
</tr>
</ng-template>
创建Angular应用程序和模块安装。
第1步：使用以下命令创建一个Angular应用程序。
ng new appname
第2步：创建你的项目文件夹即appname后，使用以下命令移动到它。
cd appname
步骤3：在你给定的目录中安装PrimeNG。
npm install primeng --save
npm install primeicons --save
项目结构：它将看起来像如下。
例子1：下面是一个简单的例子，演示了Angular PrimeNG TreeTable Column Group的使用。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG TreeTable Column Group</h4>
<p-treeTable #myTab [columns]="cols"
[value]="tableData">
<ng-template pTemplate="header">
<tr>
<th colspan="2">Information</th>
</tr>
<tr>
<th>Name</th>
<th>Age</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>
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: 'David',
age: '40',
},
children: [
{
data: {
name: 'Nathan',
age: '16',
},
children: [
{
data: {
name: 'Abe',
age: '12',
},
},
{
data: {
name: 'Ksi',
age: '12',
},
},
],
},
{
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',
},
},
],
},
];
}
}
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';
import { ButtonModule } from 'primeng/button';
import { InputTextModule } from 'primeng/inputtext';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TreeTableModule,
ButtonModule,
InputTextModule,
HttpClientModule,
FormsModule,
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [NodeService],
})
export class AppModule { }
输出:
例子2：下面是另一个例子，演示了Angular PrimeNG基本列组的使用。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG TreeTable Column Group</h4>
<p-treeTable #myTab [columns]="cols" [value]="tableData">
<ng-template pTemplate="header">
<tr>
<th colspan="3">Person Details</th>
</tr>
<tr>
<th colspan="2">Name</th>
<th rowspan="2">Age</th>
</tr>
<tr>
<th>First Name</th>
<th>Last Name</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>
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: 'firstname', header: 'First Name' },
{ field: 'lastname', header: 'Last Name' },
{ field: 'age', header: 'Age' },
];
this.tableData = [
{
data: {
firstname: 'David',
lastname: 'ace',
age: '40',
},
children: [
{
data: {
firstname: 'Nathan',
lastname: 'ace',
age: '16',
},
children: [
{
data: {
firstname: 'Abe',
lastname: 'ace',
age: '12',
},
},
{
data: {
firstname: 'Ksi',
lastname: 'ace',
age: '12',
},
},
],
},
{
data: {
firstname: 'Shane',
lastname: 'ace',
age: '14',
},
},
],
},
{
data: {
firstname: 'Warner',
lastname: 'ace',
age: '55',
},
children: [
{
data: {
lastname: 'ace',
firstname: 'Michelle',
age: '20',
},
},
{
data: {
firstname: 'Charlie',
lastname: 'ace',
age: '24',
},
},
],
},
{
data: {
firstname: 'Max',
lastname: 'ace',
age: '55',
},
children: [
{
data: {
firstname: 'Michelle',
lastname: 'ace',
age: '20',
},
},
{
data: {
firstname: 'Charlie',
lastname: 'ace',
age: '24',
},
},
],
},
{
data: {
firstname: 'Willy',
lastname: 'ace',
age: '55',
},
children: [
{
data: {
firstname: 'Michelle',
lastname: 'ace',
age: '20',
},
},
{
data: {
firstname: 'Charlie',
lastname: 'ace',
age: '24',
},
},
],
},
{
data: {
firstname: 'Miley',
lastname: 'ace',
age: '55',
},
children: [
{
data: {
firstname: 'Michelle',
lastname: 'ace',
age: '20',
},
},
{
data: {
firstname: 'Charlie',
lastname: 'ace',
age: '24',
},
},
],
},
{
data: {
firstname: 'Sam',
lastname: 'ace',
age: '55',
},
children: [
{
data: {
firstname: 'Michelle',
lastname: 'ace',
age: '20',
},
},
{
data: {
firstname: 'Charlie',
lastname: 'ace',
age: '24',
},
},
],
},
{
data: {
firstname: 'James',
lastname: 'ace',
age: '55',
},
children: [
{
data: {
firstname: 'Michelle',
lastname: 'ace',
age: '20',
},
},
{
data: {
lastname: 'ace',
firstname: 'Charlie',
age: '24',
},
},
],
},
];
}
}
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';
import { ButtonModule } from 'primeng/button';
import { InputTextModule } from 'primeng/inputtext';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TreeTableModule,
ButtonModule,
InputTextModule,
HttpClientModule,
FormsModule,
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [NodeService],
})
export class AppModule { }
输出:
