* ngFor在模式(角度离子)中不起作用 [英] *ngFor doesn't work in modal (Angular ionic)

问题描述

Im在离子应用中使用角度，但在模态中ngForm不起作用.我认为这很简单，只需简单的代码即可.

Im using angular in ionic application but in a modal the ngForm doesnt works. I think its cleary whit a simple code.

    <li *ngFor="let item of [1,2,3,4,5]; let i = index">
        {{i}} {{item}}
      </li>

此代码在页面的所有其余部分都显示了此内容->

this code show this in all rest of page ->

列表

但是在这样的模式创建中

but in a modal create like this

 async presentModal(test){
    const modal = await this.modalController.create({
      component: TestPage,
      componentProps: {
          test
      }
    });
    modal.onWillDismiss().then(dataReturned => {

    });
    return await modal.present();
   }

不显示任何内容.有什么建议为什么在模态* ngFor o中甚至* ngForm不起作用?我缺少什么?谢谢.

dont show anything. Any suggest why in the modal the *ngFor o even the *ngForm doesnt work? Something im missing? Thanks.

PD:我可以在模态中做我想做的每件事，并且像写"hello"或模态正确显示的东西一样工作，但是ngform不显示任何东西.

PD: I can do every thing i want in the modal and works like write "hello" or something the modal show correctly but the ngform dont show anything.

PD2:

我也尝试用mu模块.ts导入搜索以解决此问题...

Also mu module.ts with all i try to import searching something to fix this...

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';

import { IonicModule, NavController } from '@ionic/angular';

import { TestPageRoutingModule } from './test-routing.module';

import {ReactiveFormsModule} from '@angular/forms';
import { TestePage } from './test.page';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from 'src/app/app.component';


@NgModule({
  imports: [
    BrowserModule,
    IonicModule,
    CommonModule,
    FormsModule,
    TestPageRoutingModule,
    ReactiveFormsModule
  ],
  providers: [
    BrowserModule,
    IonicModule,
    CommonModule,
    ReactiveFormsModule,
    NavController
  ],
  declarations: [TestPage],
  bootstrap: [AppComponent]
})

推荐答案

将组件添加到您的app.module

Add the component to your app.module

import { ModalComponent } from './modal/modal.component';


@NgModule({
  declarations: [ModalComponent],
  entryComponents: [ModalComponent],
  
  }),
  providers: [
  ],
  bootstrap: [AppComponent]
})

查看下面的链接以获取示例

check the link below for an example

https://stackblitz.com/edit/ionic-v4-angular-modal-vxttcw?file=src%2Fapp%2Fapp.module.ts

这篇关于* ngFor在模式(角度离子)中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！