The method of how angular triggers the parent component in the child component

now the demand is like this.
encapsulates a modal pop-up window
method to refresh the list of parent components when you want the pop-up window to close

subcomponents

<nz-modal [nzStyle]="{ top: "100px"}" nzWidth="900px" *ngIf="isDispatchedVisible" nzWrapClassName="vertical-center-modal" [(nzVisible)]="isDispatchedVisible" [nzTitle]="tplTitle" (nzOnCancel)="handleCancel()" (nzOnOk)="handleOkDispatched()">
  <ng-template -sharptplTitle>
    <span>:{{repairInfo?.repair.repair_no}}</span>
  </ng-template>
  <div nz-row>
    <div nz-col nzSpan="10">
      

: {{repairInfo.repair.customer_name}}

: {{repairInfo.repair.room_no}}

: {{repairInfo.repair.repair_person}}

: {{repairInfo.repair.repair_phone}}

</div> <div nz-col nzSpan="10">

: {{repairInfo.repair.repair_time}}

: {{repairInfo.repair.repair_order_time}}

: {{repairInfo.repair.project_name}}

</div> </div> <p *ngIf="repairInfo.repair.repair_cost_type==2">:

<p *ngIf="repairInfo.repair.repair_cost_type==1">: {{repairInfo.repair.repair_cost_price}}

<nz-divider></nz-divider> <form nz-form [formGroup]="dispatch" (ngSubmit)="onSubmit()"> <nz-form-item> <nz-form-label nzRequired nzSpan="4"></nz-form-label> <nz-form-control nzSpan="16"> <input nz-input formControlName="mechanicName" placeholder="" /> <!-- <nz-select formControlName="mechanicId" nzAllowClear nzShowSearch (nzOnSearch)="onSearchDispatchUser($event)"> <nz-option *ngFor="let item of dispatchUserList" [nzValue]="item.user_id" [nzLabel]="item.user_name"></nz-option> </nz-select> --> <nz-form-explain *ngIf="isInvalidDispatch("mechanicName")"></nz-form-explain> </nz-form-control> </nz-form-item> <nz-form-item> <nz-form-label nzRequired nzSpan="4"></nz-form-label> <nz-form-control nzSpan="16"> <nz-date-picker nzShowTime nzFormat="yyyy/MM/dd HH:mm:ss" formControlName="repairOrderTime"></nz-date-picker> <nz-form-explain *ngIf="isInvalidDispatch("repairOrderTime")"></nz-form-explain> </nz-form-control> </nz-form-item> </form> <form nz-form [formGroup]="material" (ngSubmit)="onSubmit()"> <nz-form-item *ngFor="let control of materialArray;let i = index"> <nz-form-label nzSpan="4" *ngIf="i==0" [nzFor]="control.records_name"></nz-form-label> <nz-form-control nzSpan="11" [nzOffset]="i==0?0:4"> <input nz-input [formControlName]="control.records_name" [attr.id]="control.id" placeholder="" /> <nz-form-explain *ngIf="getFormControl(control.records_name)?.dirty&&getFormControl(control.records_name)?.hasError("required")"></nz-form-explain> </nz-form-control> <nz-form-control nzSpan="8" [nzOffset]="1"> <nz-input-number nz-input [formControlName]="control.records_num" [attr.id]="control.id" [nzPlaceHolder]="""" [nzMin]="1" [nzStep]="1"></nz-input-number> <i *ngIf="i!=0" nz-icon style="font-size:24px; top: 4px;custor:pointer;position:relative;left: 5px;" type="minus-circle-o" theme="outline" class="anticon anticon-minus-circle dynamic-delete-button" (click)="removeField(control,$event)"></i> <nz-form-explain *ngIf="getFormControl(control.records_num)?.dirty&&getFormControl(control.records_num)?.hasError("required")"></nz-form-explain> </nz-form-control> </nz-form-item> <nz-form-item> <nz-form-control [nzXs]="{span:24,offset:0}" [nzSm]="{span:16,offset:4}"> <button nz-button nzType="dashed" style="width:100%" (click)="addField($event)"><i nz-icon type="plus"></i></button> </nz-form-control> </nz-form-item> </form> </nz-modal> <!-- --> <nz-modal [(nzVisible)]="isDownloadVisible" nzTitle="" (nzOnCancel)="handleCancel()" (nzOnOk)="download(repairInfo)">

?

</nz-modal> import { AbstractControl, FormBuilder, FormControl, FormGroup, Validators } from "@angular/forms"; import { ApiService } from "@/services/api.service"; import { UtilService } from "@/services/util.service"; import { NzMessageService } from "ng-zorro-antd"; import { Globals } from "@/services/globals.service"; import { Component, ElementRef, Input, Output, EventEmitter } from "@angular/core"; @Component({ selector: "dispatch", templateUrl: "./dispatch.html", }) export class DispatchComponent { @Input() set option(option) { console.log(option) this.id = option.id; this.module_id = option.module_id; this.isDispatchedVisible = true; this.getData(this.id) } id = null; module_id = null; material = this.form.group({}); dispatch = this.form.group({ mechanicName: [null, [Validators.required]], repairOrderTime: [null, [Validators.required]] }) repairInfo = null; isDispatchedVisible = true; isDownloadVisible = false; isInvalidDispatch = this.util.isInvalid(this.dispatch); async getData(id) { const { data } = await this.api.get(`service-records/${id}`)({ }) this.repairInfo = data; this.isDispatchedVisible = true; } async handleOkDispatched() { console.log(this.dispatch.value) await this.api.put("service-records/assignuser")({ s_records_id: this.id, s_mechanic: this.dispatch.value.mechanicName, repair_order_time: +this.dispatch.value.repairOrderTime, materi_data: Array.from({ length: this.materialArray.length }).map((v, i) => ({ records_name: this.material.value[`records_name${i}`], records_num: this.material.value[`records_num${i}`], insert: 1, })), }).then(() => { this.message.create("success", "") this.dispatch.reset(); this.material = this.form.group({}) this.materialArray = []; this.handle.emit(true); }); this.isDispatchedVisible = false; this.isDownloadVisible = true; } handleCancel(): void { this.isDispatchedVisible = false; this.isDownloadVisible = false; this.dispatch.reset(); this.material = this.form.group({}) this.materialArray = []; } async download(item) { this.isDownloadVisible = false; window.location.href = `${this.globals.baseUrl}file/download?module_id=${this.module_id}&&data_id=${this.id}`; } materialArray: Array<{ id: number, records_name: string, records_num: string }> = []; addField(e?: MouseEvent): void { if (e) { e.preventDefault(); } const id = (this.materialArray.length > 0) ? this.materialArray[this.materialArray.length - 1].id + 1 : 0; const control = { id, records_name: `records_name${id}`, records_num: `records_num${id}` }; const index = this.materialArray.push(control); this.material.addControl(this.materialArray[index - 1].records_name, new FormControl(null)); this.material.addControl(this.materialArray[index - 1].records_num, new FormControl(null)); } removeField(i: { id: number, records_name: string, records_num: string }, e: MouseEvent): void { e.preventDefault(); if (this.materialArray.length > 1) { const index = this.materialArray.indexOf(i); this.materialArray.splice(index, 1); this.material.removeControl(i.records_name); this.material.removeControl(i.records_num); } } getFormControl(name: string): AbstractControl { return this.material.controls[name]; } constructor( private api: ApiService, private util: UtilService, private globals: Globals, private form: FormBuilder, private message: NzMessageService ) { } }

parent component

<dispatch  *ngIf="isDispatch" [option]="optionData"></dispatch>

I want the parent component to execute the this.setTasks (); when the child component clicks to confirm that the handleOkDispatched () is executed.

how should I write

?
Feb.16,2022

use event mechanism
refer to the official ide/component-interaction-sharpparent-listens-for-child-event" rel=" nofollow noreferrer "> https://angular.io/guide/comp.

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