Question

抱歉，无法正确回答我的问题。让我正确解释我的问题。我有2个成分，分别是A和B。在B中，我有一个函数saveIndCustData，该函数发出并保存数据。

export class CustomerformComponent implements OnInit {
@Output()
savedIndCustomer: EventEmitter<any> = new EventEmitter<any>();
saveIndCustData() {
const savedIndCustomer = {
  prefix: this.prefix,
  nameType: this.indCustNameType,
  firstName: this.firstName,
  middleNAme: this.middleName,
  lastName: this.lastName,
  gender: this.gender,
  dateOfBirth: this.parseDate(this.dateOfBirth.toString()),
  citizenship: this.citizenship
};

this.savedIndCustomer.emit(savedIndCustomer);
this.snackbar.open('Customer Info Saved,Click on Next', 'Close', {
  duration: 5000
});
}
}

我现在从组件A调用该函数。

import { CustomerformComponent } from './forms/customerform/customerform.component';
constructor(private custComp: CustomerformComponent) {}
saveCustomerForm(): void {
this.custComp.saveIndCustData();
}

我将数据发送到服务类中

@Output()
savedIndCustomer: EventEmitter<any> = new EventEmitter<any>();

服务等级

public addDynamiIndCustomerComponent() {
const factory = this.factoryResolver.resolveComponentFactory(CustomerformComponent);
const component = factory.create(this.rootViewContainer.parentInjector);
component.instance.savedIndCustomer.subscribe(data => {
  console.log(data);
  // Insert Individual Customer Type
  this.custFullDetails.customerType = 'individual';
  this.custFullDetails.individualCustomer.dateOfBirth = data.dateOfBirth;
  this.custFullDetails.individualCustomer.citizenship = data.citizenship;
  this.custFullDetails.individualCustomer.gender = data.gender;
  this.custFullDetails.individualCustomer.individualName.push({
    prefix: data.prefix,
    firstName: data.firstName,
    middleName: data.middleName,
    lastName: data.lastName,
    agreementId: data.agreementId,
    nameType: data.nameType
  });
  console.log(this.custFullDetails.individualCustomer);
});
this.rootViewContainer.insert(component.hostView);
}

我的问题是，如果我从组件B调用saveIndCustData函数，它将数据推入数组const savedIndCustomer{ ... }并调用服务类。但是，当我从组件A调用相同的函数时，它不会调用const savedIndCustomer{ ... }函数内部的saveIndCustData()方法，并且服务类方法不会将数据保存在数组中，而只是显示了snakbar。有什么问题吗？

Answer 1

假设您将组件B放置在组件A的html内，那么您应该像这样对组件B进行引用

A.component.html：

...
    <B #bcmp></B>
...

像这样使用@ViewChild将其注入A.component.ts

A.component.ts：

@Component({
    selector: 'A',
    templateUrl: './A.component.html',
    styleUrls: ['./A.component.scss']
})
export class AComponent implements OnInit {
    @ViewChild("bcmp") bcmp : B
    ngOnInit(): void {
        // by this way you can use any method existant in B component
        this.bcmp.saveIndCustData();
    }
}

从另一个组件调用函数时，函数内部的对象未执行

1 个答案: