管道“无法找到angular2自定义管道

我似乎无法解决这个错误.我有搜索栏和ngFor.我试图使用这样的自定义管道来过滤数组：

import { Pipe,PipeTransform } from '@angular/core';

import { User } from '../user/user';

@Pipe({
  name: 'usersPipe',pure: false
})
export class UsersPipe implements PipeTransform {
  transform(users: User [],searchTerm: string) {
    return users.filter(user => user.name.indexOf(searchTerm) !== -1);
  }
}

用法：

<input [(ngModel)]="searchTerm" type="text" placeholder="Search users">

<div *ngFor="let user of (users | usersPipe:searchTerm)">
...
</div>

错误：

zone.js:478 Unhandled Promise rejection: Template parse errors:
The pipe 'usersPipe' could not be found ("
<div class="row">
    <div  
    [ERROR ->]*ngFor="let user of (user | usersPipe:searchTerm)">

角度版本：

"@angular/common": "2.0.0-rc.5","@angular/compiler": "2.0.0-rc.5","@angular/core": "2.0.0-rc.5","@angular/platform-browser": "2.0.0-rc.5","@angular/platform-browser-dynamic": "2.0.0-rc.5","@angular/router": "3.0.0-rc.1","@angular/forms": "0.3.0","@angular/http": "2.0.0-rc.5","es6-shim": "^0.35.0","reflect-Metadata": "0.1.3","rxjs": "5.0.0-beta.6","systemjs": "0.19.26","bootstrap": "^3.3.6","zone.js": "^0.6.12"

确保您没有面对“交叉模块”问题

如果使用管道的组件不属于已声明管道组件“全局”的模块,则找不到管道,并收到此错误消息.

在我的情况下,我已经将管道声明在一个单独的模块中,并将此管道模块导入任何其他使用管道的组件的模块中.

我已经宣布了
您正在使用管道的组件是

管道模块

import { NgModule }      from '@angular/core';
 import { myDateFormat }          from '../directives/myDateFormat';

 @NgModule({
     imports:        [],declarations:   [myDateFormat],exports:        [myDateFormat],})

 export class PipeModule {

   static forRoot() {
      return {
          ngModule: PipeModule,providers: [],};
   }
 }

在另一个模块中使用(例如app.module)

// Import APPLICATION MODULES
  ...
  import { PipeModule }    from './tools/PipeModule';

  @NgModule({
     imports: [
    ...,PipeModule.forRoot()
    ....
  ],

原文链接：https://www.f2er.com/angularjs/143152.html

管道“无法找到angular2自定义管道

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