极客教程Angular PrimeNG表过滤菜单
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。这篇文章将向我们展示如何在Angular PrimeNG中使用表过滤功能。
Angular PrimeNG Table Filter Menu在Table组件中启用了Filter菜单。过滤器菜单是用来根据一些标准来过滤列。它比单独的行更先进，因为它为我们提供了更多的过滤选项与多个运算符。
语法:
<p-table
#myTab
[value]="..."
[scrollable]="..."
scrollHeight="...px">
<ng-template pTemplate="header">
<tr>
<th>Name</th>
<p-columnFilter
type="text"
field="firstname"
display="menu">
</p-columnFilter>
...
</tr>
</ng-template>
<ng-template pTemplate="body" let-x>
<tr>
<td>
{{ x.name }}
</td>
...
</tr>
</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。
Project Structure
例子1：下面是一个简单的例子，演示Angular PrimeNG表过滤菜单的使用。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG Table Filter Menu</h4>
<p-table
#myTab
[value]="tableData"
[scrollable]="true"
scrollHeight="400px">
<ng-template pTemplate="header">
<tr>
<th>First Name</th>
<p-columnFilter
type="text"
field="firstname"
display="menu">
</p-columnFilter>
<th>Last Name</th>
<p-columnFilter
type="text"
field="lastname"
display="menu">
</p-columnFilter>
<th>Age</th>
<p-columnFilter
type="text" field="age"
display="menu">
</p-columnFilter>
</tr>
</ng-template>
<ng-template pTemplate="body" let-people>
<tr>
<td>
{{ people.firstname }}
</td>
<td>
{{ people.lastname }}
</td>
<td>
{{ people.age }}
</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",
},
{
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 { BrowserAnimationsModule }
from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { TableModule } from 'primeng/table';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TableModule,
FormsModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
输出:
例子2：下面是另一个例子，演示Angular PrimeNG表过滤器菜单的使用。在这个例子中，我们只将过滤器应用于第一个名字列。
<h2 style="color: green">GeeksforGeeks</h2>
<h4>Angular PrimeNG Table Filter Menu</h4>
<p-table
#myTab
[value]="tableData"
[scrollable]="true"
scrollHeight="400px">
<ng-template pTemplate="header">
<tr>
<th>First Name</th>
<p-columnFilter
type="text"
field="firstname"
display="menu">
</p-columnFilter>
<th>Last Name</th>
<th>Age</th>
</tr>
</ng-template>
<ng-template pTemplate="body" let-people>
<tr>
<td>
{{ people.firstname }}
</td>
<td>
{{ people.lastname }}
</td>
<td>
{{ people.age }}
</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",
},
{
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 { BrowserAnimationsModule }
from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { TableModule } from 'primeng/table';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
TableModule,
FormsModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
输出:
