How can I manually set an Angular form field as invalid?

How can I manually set an Angular form field as invalid?

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Get all validation errors from Angular 2 FormGroup

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How to add debounce time to an async validator in angular 2?

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How to trigger Form Validators in Angular2

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How to validate white spaces/empty spaces? [Angular 2]

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Angular 2 form validation, minLength validator is not working

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Angular2: Find out if FormControl has required validator?

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Min / Max Validator in Angular 2 Final

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How to add form validation pattern in Angular 2?

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Angular 4 Form Validators - minLength & maxLength does not work on field type number

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How to validate password strength with Angular 5 Validator Pattern

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TypeError: this.form._updateTreeValidity is not a function

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Angular 2 custom validator with parameters

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How to do Email validation using Regular expression in Typescript [duplicate]

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How to validate that at least one checkbox should be selected?

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