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How To Set Focus On Text Box In Angular 5.

Here, I will explain how to set focus on text box using ElementRef.

 Demo.html : 

<input type="text" class="form-control" value="" #barcode placeholder="Barcode" [(ngModel)]="Barcode" (blur)="SetFocus()" />

Demo.Component.ts :

import { Component, OnInit, ElementRef } from '@angular/core';

export class StockDataTableComponent implements OnInit, OnChanges {
    @ViewChild('Barcode') barcode: ElementRef;
     constructor(){}

    function SetFocus(){
           this.barcode = "";
           this.barcode.nativeElement.focus();
    }
}

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