Here Mudassar Ahmed Khan has explained with an example, how to implement Date of Birth (Age) Validation using Regular Expressions (Regex) in JavaScript.

There will be two types of Validations:
1. Date format dd/MM/yyyy validation: The Date of Birth (DOB) will be first validated for dd/MM/yyyy format using Regular Expression (Regex).
2. 18+ Minimum Age validation: The difference between the age entered in the TextBox and the Current Date is minimum 18 years.

Here Mudassar Ahmed Khan has explained with an example, how to validate Date in dd/MM/yyyy format using Regular Expression (Regex) in JavaScript.

There will be two types of Validations:
1. Date format dd/MM/yyyy validation: The Date of Birth (DOB) will be first validated for dd/MM/yyyy format using Regular Expression (Regex).
2. 18+ Minimum Age validation: The difference between the age entered in the TextBox and the Current Date is minimum 18 years.

Here Mudassar Ahmed Khan has explained with an example, how to pass (send) TextBox Value to Controller Action method using Html.ActionLink ASP.Net MVC Razor.

Here Mudassar Ahmed Khan has explained with an example, how add dynamic TextBoxes and also Save (Insert) the values of dynamic TextBoxes to Database in ASP.Net MVC Razor.

The dynamic TextBox controls with Add Remove Button functionality will be created on Client Side using jQuery in ASP.Net MVC Razor.