Birth date Validation in aspnet

In ASP.NET, birth date validation can be implemented using data annotations or custom validation logic. You can use the [Range] attribute to ensure the date falls within a specific range (e.g., not a future date) or use the [DataType(DataType.Date)] attribute to ensure the input is a date. Additionally, you can implement custom validation by creating a validation attribute that checks if the birth date meets your specific criteria, such as age restrictions. This validation can be applied to model properties to enforce rules before data is processed.