src/app/_helpers/custom-error-state-matcher.ts
ErrorStateMatcher
Methods |
isErrorState | |||||||||
isErrorState(control: FormControl | null, form: FormGroupDirective | NgForm | null)
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Parameters :
Returns :
boolean
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import {ErrorStateMatcher} from '@angular/material/core';
import {FormControl, FormGroupDirective, NgForm} from '@angular/forms';
export class CustomErrorStateMatcher implements ErrorStateMatcher{
isErrorState(control: FormControl | null, form: FormGroupDirective | NgForm | null): boolean {
const isSubmitted: boolean = form && form.submitted;
return !!(control && control.invalid && (control.dirty || control.touched || isSubmitted));
}
}