I have a page for create operation. In my page I have 1 form with 2 field. If I reload the page (or window.reload
by code) I can see updates in that form. But I want to trigger a refresh on the form by pressing button click.
So please help me to write a function that can refresh the form (or any other html element like tabe/paragraph/etc.)
.html of my form:
<form class="was-validated" #zoneForm=ngForm id=#zoneForm> <div class=container> <div class="row justify-content-center"> <div class="col-5"> <div class="card" style="width: 35rem;"> <div class="card-header"> <div class="row"> <div class="col-11"> Zone Entry </div> <div class="col-1"> <i style="margin-left: -1rem;" class="fa fa-arrow-circle-o-right" aria-hidden="true"></i> </div> </div> </div> <div class="card-body"> <div class="row mb-1"> <div class="col-12"> <input [(ngModel)]="code" name="code" type="number" class="custom_form_control custom input" placeholder="ID" style="padding: 0px;" disabled> </div> </div> <div class="row mb-1"> <div class="col-12"> <input [(ngModel)]="zonename" name="zonename" type="text" class="custom_form_control custom-input" placeholder="Zone Name" required> <i class="fa fa-user" style="margin-left: -1rem;font-size: 1rem; color:black;margin-top: 0.25rem;"></i> </div> </div> <div class="row "> <div class="col-12 "> <button type="button " class="btn btn-outline-primary" style="margin-left: 90%; " (click)="createZone()">Save</button> </div> </div> </div> <!-- </div> --> </div> </div> </div> </div> </form>
the function should be called by clicking Save button
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Answer
You could use ngOnChanges()
Example:component.ts file
import { Component, Input, OnChanges } from "@angular/core"; @Component({ selector: "child-component", templateUrl: "./child-component.html" }) export class MyComponent implements OnChanges { @Input() someHtml: string; constructor() {} ngOnChanges() { ///** WILL TRIGGER WHEN PARENT COMPONENT UPDATES '** console.log(this.someHtml); } }