The disabled property sets or returns whether a radio button should be disabled, or not.

If you have other options, you can prevent the user from changing the value merely by disabling the other options: Descriptionlink Using radio buttons with reactive form directiveslink. Note that readonly applies only to input elements with specific types.See the input docs on MDN for more information.. A special directive is necessary because we cannot use interpolation inside the readonly attribute. Set Radio Button Selected in Angular 7|8|9. HTML set checkbox as readonly. Disabled elements are usually rendered in gray by default in browsers. fb. The follow example shows how to use radio buttons in a reactive form. Overview.
When using radio buttons in a reactive form, radio buttons in the same group should have the same formControlName.Providing a name attribute is optional.

If you don't have any other options, a checked radio button cannot be unchecked. Uncategorized Bookmark. Using CdkTextareaAutosize CdkTextareaAutosize Directive is used to automatically resize a textarea to fit its content. See the interpolation guide for more info. Sets the readonly attribute on the element, if the expression inside ngReadonly is truthy. Now CustomErrorStateMatcher will be applied to all and