极客教程Angular PrimeNG TreeTable Flex Scroll
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，这个框架用于制作响应式网站，非常容易。本文将告诉我们如何在Angular PrimeNG中使用TreeTable Flex Scroll。
Angular PrimeNG TreeTable Flex Scroll在TreeTable组件中启用Flex Scroller。在视口应该根据表父的高度而不是固定的视口高度进行自我调整的情况下，将scrollHeight选项设置为flex。因此，使用滚动器，我们可以轻松地定制TreeTable组件，并根据最佳的用户体验来显示Table Data。
语法:
<p-treeTable [scrollable]="true" scrollHeight='flex' >
</p-treeTable>
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 Flex Scroll的使用。
<div style="height: calc(100vh - 149px)">
<h2 style="color: green">
GeeksforGeeks
</h2>
<h4>
Angular PrimeNG TreeTable Flex Scroll
</h4>
<p-treeTable
[value]="tableData"
[scrollable]="true"
scrollHeight="flex"
>
<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>
</div>
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',
},
},
],
},
{
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';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TreeTableModule,
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 TreeTable Flex Scroll的使用。在这个例子中，我们正在整合水平和垂直排序。
<div style="height: calc(100vh - 149px)">
<h2 style="color: green">
GeeksforGeeks
</h2>
<h4>
Angular PrimeNG TreeTable Flex Scroll
</h4>
<p-treeTable
[columns]="cols"
[value]="tableData"
[scrollable]="true"
[style]="{ width: '500px' }"
scrollHeight="flex"
>
<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>
</div>
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',
},
},
],
},
{
data: {
name: 'S',
age: '55',
},
children: [
{
data: {
name: 'T',
age: '20',
},
},
{
data: {
name: 'U',
age: '24',
},
},
],
},
{
data: {
name: 'S',
age: '55',
},
children: [
{
data: {
name: 'T',
age: '20',
},
},
{
data: {
name: 'U',
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';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TreeTableModule,
HttpClientModule,
FormsModule,
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [NodeService],
})
export class AppModule { }
输出:
