极客教程Angular PrimeNG表的列的大小调整
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 Column Resize。
Angular PrimeNG Table Column Resize可以调整Table组件中的列的大小。列可以被调整大小，它们的宽度可以很容易地使用模板来改变，这使得表格更加互动和用户友好。
语法:
<p-table
[columns]="cols"
[value]="tableData"
[resizableColumns]="true">
<ng-template pTemplate="colgroup" let-columns>
...
</ng-template>
<ng-template pTemplate="header" let-columns>
...
</ng-template>
<ng-template pTemplate="body"
let-rowNode let-rowData="rowData"
let-columns="columns">
...
</ng-template>
</p-table>
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
第3步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表列大小的使用，我们将resizbleColumns属性设置为 “true “来调整列的大小。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG Table Column Resize</h4>
<p-table #myTab [value]="tableData"
[scrollable]="true"
[columns]="cols"
[resizableColumns]="true">
<ng-template pTemplate="header">
<tr>
<th pResizableColumn>First Name</th>
<th pResizableColumn>Last Name</th>
<th pResizableColumn>Age</th>
</tr>
</ng-template>
<ng-template pTemplate="body"
let-rowData let-columns="columns"
let-index="rowIndex">
<tr>
<td *ngFor="let col of columns">
{{ rowData[col.field] }}
</td>
</tr>
</ng-template>
</p-table>
import { Component } from "@angular/core";
interface People {
firstname?: string;
lastname?: string;
age?: string;
}
@Component({
selector: "app-root",
templateUrl: "./app.component.html",
})
export class AppComponent {
tableData: People[] = [];
cols: any[] = [];
constructor() {}
ngOnInit() {
this.cols = [
{ field: "firstname", header: "First Name" },
{ field: "lastname", header: "Last Name" },
{ field: "age", header: "Age" },
];
this.tableData = [
{
firstname: "David",
lastname: "ace",
age: "40",
},
{
firstname: "AJne",
lastname: "west",
age: "40",
},
{
firstname: "Mak",
lastname: "Lame",
age: "40",
},
{
firstname: "Peter",
lastname: "raw",
age: "40",
},
{
firstname: "Kane",
lastname: "James",
age: "40",
},
{
firstname: "Peter",
lastname: "raw",
age: "40",
},
{
firstname: "Kane",
lastname: "James",
age: "40",
},
];
}
}
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 { RouterModule } from "@angular/router";
import { AppComponent } from "./app.component";
import { TreeTableModule } from "primeng/treetable";
import { ContextMenuModule } from "primeng/contextmenu";
import { TableModule } from "primeng/table";
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TreeTableModule,
TableModule,
ContextMenuModule,
HttpClientModule,
FormsModule,
RouterModule.forRoot
([{ path: "", component: AppComponent }]),
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule {}
输出:
实例2：下面是另一个演示Angular PrimeNG Table Column Resize使用的例子，我们将Column Resize应用于可滚动的TreeTable组件。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG Table Column Resize</h4>
<p-table #myTab [value]="tableData"
[scrollable]="true"
[columns]="cols"
[resizableColumns]="true"
scrollHeight="400px">
<ng-template pTemplate="header">
<tr>
<th pResizableColumn>First Name</th>
<th pResizableColumn>Last Name</th>
<th pResizableColumn>Age</th>
</tr>
</ng-template>
<ng-template pTemplate="body"
let-rowData let-columns="columns"
let-index="rowIndex">
<tr>
<td *ngFor="let col of columns">
{{ rowData[col.field] }}
</td>
</tr>
</ng-template>
</p-table>
import { Component } from "@angular/core";
interface People {
firstname?: string;
lastname?: string;
age?: string;
}
@Component({
selector: "app-root",
templateUrl: "./app.component.html",
})
export class AppComponent {
tableData: People[] = [];
cols: any[] = [];
constructor() {}
ngOnInit() {
this.cols = [
{ field: "firstname", header: "First Name" },
{ field: "lastname", header: "Last Name" },
{ field: "age", header: "Age" },
];
this.tableData = [
{
firstname: "David",
lastname: "ace",
age: "40",
},
{
firstname: "AJne",
lastname: "west",
age: "40",
},
{
firstname: "Mak",
lastname: "Lame",
age: "40",
},
{
firstname: "Peter",
lastname: "raw",
age: "40",
},
{
firstname: "Kane",
lastname: "James",
age: "40",
},
{
firstname: "Peter",
lastname: "raw",
age: "40",
},
{
firstname: "Kane",
lastname: "James",
age: "40",
},
{
firstname: "Peter",
lastname: "raw",
age: "40",
},
{
firstname: "Kane",
lastname: "James",
age: "40",
},
{
firstname: "Peter",
lastname: "raw",
age: "40",
},
{
firstname: "Kane",
lastname: "James",
age: "40",
},
];
}
}
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 { RouterModule } from "@angular/router";
import { AppComponent } from "./app.component";
import { TreeTableModule } from "primeng/treetable";
import { ContextMenuModule } from "primeng/contextmenu";
import { TableModule } from "primeng/table";
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TreeTableModule,
TableModule,
ContextMenuModule,
HttpClientModule,
FormsModule,
RouterModule.forRoot
([{ path: "", component: AppComponent }]),
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule {}
输出:
