Prevent date manipulation in Angular matDatepicker

I am looking to create a simple Date Formatter Directive for the MatDatepicker. For example, when I input 4 or 6 numbers into the calendar, the directive should automatically convert it to a real date.

0123 -> 2021-01-23 200415 -> 2020-04-15

However, when I try to retrieve the value on blur, MatDatePicker attempts to cast it as a new Date(inputvalue). This results in converting '0123' to (123-01-01). Is there a way to disable this feature of the datepicker or any other way to implement this functionality?

<mat-form-field appearance="fill" class="example-form-field">
  <mat-label>Choose a date</mat-label>
  <input simpleDateFormatterDirective matInput [matDatepicker]="datepicker">
  <mat-datepicker-toggle matSuffix [for]="datepicker"></mat-datepicker-toggle>
  <mat-datepicker #datepicker>
    <mat-datepicker-actions>
      <button mat-button matDatepickerCancel>Cancel</button>
      <button mat-raised-button color="primary" matDatepickerApply>Apply</button>
    </mat-datepicker-actions>
  </mat-datepicker>
</mat-form-field>

Answer №1

To effectively handle date parsing and formatting in material components, it is recommended to develop a personalized DateAdapter.

Once you have created the adapter, ensure to integrate it into your application at an appropriate level, such as the root or within specific components.

An effective approach is to extend a standard NatvieDateAdapter and customize necessary methods according to your requirements.

Additionally, consider providing MAT_DATE_FORMATS for your particular scenario, unless the formats are hardcoded within the adapter itself.

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