/Javascript/AngularJS/Dynamic set required in angular using formcontrol

Dynamic set required in angular using formcontrol

onAddValidationClick(){
    this.formGroup.controls["firstName"].setValidators(Validators.required);
    this.formGroup.controls["firstName"].updateValueAndValidity();
}

onRemoveValidationClick(){
    this.formGroup.controls["firstName"].clearValidators();
    this.formGroup.controls["firstName"].updateValueAndValidity();
}

Source: stackoverflow.com

Similar codes

0 vote225 views1 answer
News Application With Angular and Material Design
Javascript AngularJS
9 votes211 views1 answer
Angular ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked.
Javascript AngularJS
0 vote213 views1 answer
Angular bootstrap path
Javascript AngularJS
1 vote215 views2 answers
Button click navigate to another page angular
Javascript AngularJS
0 vote214 views1 answer
Angular get route last segment
Javascript AngularJS
0 vote200 views1 answer
Ip address validation regex angular
Javascript AngularJS
0 vote237 views1 answer
Angular json to file and download
Javascript AngularJS
0 vote206 views1 answer
How to get selected value from between form tags in Angular
Javascript AngularJS
0 vote220 views1 answer
Angular specific attributes and locators list
Javascript AngularJS
0 vote217 views1 answer
Angular.fromJson
Javascript AngularJS