Messages for Angular Material Date Picker Min and Max Date Validation

Looking for a way to display validation messages for minimum and maximum date errors in Angular Material Datepicker

<input [min]="minDate" [max]="maxDate" matInput [matDatepicker]="picker" [formControlName]="date">
<mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
<mat-datepicker #picker></mat-datepicker>

<mat-error class="error-message" *ngIf="formgroup.get('date').hasError('required') && (formgroup.get('date').dirty || formgroup.get('date').touched)">Date is Required</mat-error>

The current code handles the Required validation.

I would like to implement a message that says Date should be higher than 01/01/2019 if the user enters a date earlier than minDate.

Although previous dates are disabled when minDate is set, this application allows users to input dates manually. Therefore, I need to show an error message when a date earlier than the minDate is entered.

Is there a way to achieve this?

angulartypescriptangular-materialangular-material-datetimepicker

Answer №1

If you want to check if the date is in error, you can use a reference to the ngModel.

Check out this stackblitz where I have demonstrated how errors are applied to the input for easy detection, and also how the error message is displayed when the input is in error.

<mat-form-field class="example-full-width">
  <input matInput #input="ngModel" [(ngModel)]="date" [min]="minDate" [max]="maxDate" [matDatepicker]="picker" placeholder="Choose a date">
  <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
  <mat-datepicker #picker></mat-datepicker>

  <mat-error *ngIf="input.hasError('matDatepickerMax')">Date should be inferior</mat-error>

</mat-form-field>

<br><br><br>
{{ input.errors | json }}

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