The example form below demonstrates common HTML form elements that receive updated styles from Bootstrap with additional classes.
In this example, we will simply check the length of the string in the Text Box.
This is a very basic and that useful example, only made to show you how you may use the Custom Validator.
That is done by setting Validation Type property as shown in image below: These properties allow you to define 3 level validation for each control.
Validation starts with Validator1, Validator2 and finally Validator3.
So I recently ran into an issue where I wanted to create a custom control that was basically two inputs that output to one piece of data.