Guide to implementing a specified directive value across various tags in Angular Material

As I delve into learning Angular and Material, I have come across a challenge in my project. I noticed that I need to create forms with a consistent appearance. Take for example the registration form's template snippet below:

<mat-card>
  <h2>{{'NAV.REGISTRATION' | translate}}</h2>
  <form [formGroup]="registrationForm" (ngSubmit)="submitRegistrationForm()">
    <div>
      <mat-form-field appearance="outline">
        <input matInput formControlName="fullName" placeholder="{{'REGISTRATION.NAME' | translate}} *">
      </mat-form-field>
      <mat-form-field appearance="outline">
        <input matInput formControlName="password" placeholder="{{'REGISTRATION.PASSWORD' | translate}} *" type="password">
      </mat-form-field>
...

I aim to implement appearance="outline" to all instances of <mat-form-field> tags in the template. While I attempted using

<div class="mat-form-field-appearance-outline">
, it only applied styles to the <div> element itself rather than its children. Additionally, directly adding

mat-form-field{
  appearance: outline;
}

to the template's .scss file isn't viable. As a result, I am seeking alternative methods to apply a Material directive value to a custom group of tags without repeating it within the template.

Answer №1

To customize the default options for MatFormField, you have the option of injecting the MatFormFieldDefaultOptions either at the module level, affecting all fields within that module, or at a component level. More information can be found in the documentation available here.

If you want to see an example of this in action, check out this stackblitz demo which is a modified version of their form field example showcasing changes applied to all fields within the component.

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