How to make an employee registeration form in web page?

Hi all,

I want an emplyee registeration form in web page with following elements

1. First Name – mandatory (min 5, max – 20, only alphabets )

2. Middle name - optional, only alphabets

3. Last name – mandatory (min 5, max – 20) only alphabets

4. Gender – mandatory – character (M / F)

5. Date of birth – mandatory (date)

6. Nationality – mandatory (dropdown)

7. Phone number – home and mobile – either one is mandatory – number validation

8. Email address – mandatory

9. Permanent address - mandatory

10. Current address – mandatory – option to use the same permanent address

1. Define Employee class

2. Create employee class properties

a. Define Get / Set properties

3. Create class methods

a. Add employee

b. Delete employee

c. Edit employee

4. Create employee list collections

5. Create Constructors and overloading methods

I want all the validations to be done on behind code