极客教程Angular PrimeNG TreeTable的编辑
Angular PrimeNG是一个开源框架，它有丰富的原生Angular UI组件，可以用来做很好的造型，这个框架用来做响应式网站，非常方便。本文将向我们展示如何在Angular PrimeNG中使用TreeTable Editing。
Angular PrimeNG TreeTable Editing可以编辑TreeTable组件中的表格单元。因此，使用编辑功能，我们可以轻松地编辑TreeTable组件的数据。
语法:
<p-treeTable>
<p-treeTableCellEditor>
<ng-template pTemplate="input">
<input pInputText type="text"
[(ngModel)]="rowData[col.field]">
</ng-template>
<ng-template pTemplate="output">
{{rowData[col.field]}}
</ng-template>
</p-treeTableCellEditor>
</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 Editing的使用，这里你必须使用p-treeTableCellEditor来使单元格可编辑。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG TreeTable Editing</h4>
<p-treeTable
[columns]="cols"
[value]="tableData">
<ng-template
pTemplate="colgroup"
let-columns>
<colgroup>
<col *ngFor=
"let col of columns"/>
</colgroup>
</ng-template>
<ng-template
pTemplate="body"
let-rowNode
let-rowData="rowData"
let-columns="columns">
<tr>
<td *ngFor=
"let col of columns; let i = index"
ttEditableColumn [ngClass]=
"{'p-toggler-column': i === 0}">
<p-treeTableToggler
[rowNode]="rowNode" *ngIf="i === 0">
</p-treeTableToggler>
<p-treeTableCellEditor>
<ng-template pTemplate="input">
<input pInputText type="text"
[(ngModel)]="rowData[col.field]"
[ngStyle]=
"{'width': i == 0 ? '90%': '100%'}">
</ng-template>
<ng-template pTemplate="output">
{{rowData[col.field]}}
</ng-template>
</p-treeTableCellEditor>
</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: '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',
},
},
],
},
];
}
}
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，说明了Angular PrimeNG TreeTable Editing的使用。我们也可以使用disabled属性禁用表格单元的编辑。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG TreeTable Editing</h4>
<p-treeTable [columns]="cols" [value]="tableData">
<ng-template pTemplate="colgroup" let-columns>
<colgroup>
<col *ngFor="let col of columns" />
</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"
ttEditableColumn [ngClass]=
"{'p-toggler-column': i === 0 }">
<p-treeTableToggler
[rowNode]="rowNode"
*ngIf="i === 0">
</p-treeTableToggler>
<p-treeTableCellEditor>
<ng-template pTemplate="input">
<input
pInputText
type="text"
disabled
[(ngModel)]="rowData[col.field]"
[ngStyle]=
"{ width: i == 0 ? '90%' : '100%' }"
/>
</ng-template>
<ng-template
pTemplate="output">
{{ rowData[col.field] }}
</ng-template>
</p-treeTableCellEditor>
</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',
},
},
{
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:
