angular formgroup validate manually
//Validate all the form group
this.form.updateValueAndValidity();
//Validate only one form control
this.form.controls['formControlName'].updateValueAndValidity();angular formgroup validate manually
//Validate all the form group
this.form.updateValueAndValidity();
//Validate only one form control
this.form.controls['formControlName'].updateValueAndValidity();how to add validator to formgroup
this.myForm = this.formBuilder.group({
myControl1: this.defaultValue,
myControl2: this.defaultValue
});
debugger
this.myForm.setValidators(this.comparisonValidator())
}
public comparisonValidator() : ValidatorFn{
return (group: FormGroup): ValidationErrors => {
const control1 = group.controls['myControl1'];
const control2 = group.controls['myControl2'];
if (control1.value !== control2.value) {
control2.setErrors({notEquivalent: true});
} else {
control2.setErrors(null);
}
return;
};Copyright © 2021 Codeinu
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