Form not validating
Finally, Tapestry not only makes it easy to present errors messages to the user, but it can also automatically highlight form fields when validation fails.
Contents such as Text Field, Text Area, Checkbox, etc.
They will be disabled when the form input are invalid to prevent the valid form from multiple submissions.
When you submit a form to a CGI program that resides on the server, it is usually programmed to do its own check for errors.
Features like setting initial values of your fields.
Luckily for you, Redux Form makes all that a breeze.
Below are the ways to get the value from all types of form elements.
In addition, you can provide event handler methods in your page or component classes to handle more complex validation scenarios.
We’ll be pretending that we’re creating an “update user information” form for a hypothetical application. The complete source code for this tutorial can be found at this gist.