Reusable Input and Select component with Control Value Accessor in Angular
Code: https://github.com/DevBySeb/DevBySeb/...
A Control Value Accessor (CVA) is a design pattern used in Angular to create custom form controls. It is a way to extend the functionality of existing form controls, allowing developers to create new controls that meet their specific needs.
In Angular, a form control is a component that manages the state of an input element, such as a textbox or checkbox. A CVA provides a way to create a custom form control that can be used in the same way as the built-in form controls.
To implement a CVA in your design, you can start by creating a new component that extends the base class ControlValueAccessor. This class provides several methods that you will need to implement in your component, including writeValue, registerOnChange, and registerOnTouched.
The writeValue method is used to update the value of the custom form control. The registerOnChange method is used to register a callback function that will be called when the value of the control changes. The registerOnTouched method is used to register a callback function that will be called when the control is touched (i.e., when it receives focus).
Once you have implemented these methods, you can use your custom form control in your application by adding it to your template and binding it to a form control object.
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