Use the ng add command to quickly install all the needed dependencies:
ng add @terminus/ui-validation-messagesIn your top-level stylesheet, add these imports:
@import '~@terminus/design-tokens/css/library-design-tokens.css';
@import '~@terminus/ui-styles/terminus-ui.css';Load the needed font families by adding this link to the <head> of your application:
<link href="https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,500;0,700;1,400&display=swap" rel="stylesheet">This component was initially for internal use, but has been extended to support custom validation messages. Now a custom instance of this component can be passed in to override the existing validation messages.
<ts-validation-messages
<!-- This should be the same FormControl passed to the outer form component -->
[control]="myEmailControl"
<!-- This is the function that will determine the messaging for errors -->
[messagesFactory]="emailMessageFactory"
<!-- This directive is needed to help the parent TsFormField find the custom messages -->
tsCustomValidationMessage
></ts-validation-messages>import { TsValidationMessageFactory } from '@terminus/ui-validation-messages';
...
emailMessageFactory: TsValidationMessageFactory = (a, b) => (a ? 'My custom message!' : null);