The employer needs to know the complete address of the employee for a number of reasons. One is for payroll purposes. Setting up an account for a person requires him to provide his address. Another reason is that if something wrong happens, they would know where to locate him or his family. The company also needs an employee's address so that they can be certain of his identity. And another reason would be for mailing of anything necessary purposes.
Now ASP.Net is the most preferable choice for most of the web developers for creating web form templates. This programming code is used to manage a consistent look and smooth interface in a website. Its easy to manage a structurally similar design in all your pages. If your business organization is trying to change the templates, it becomes very difficult to change each single page. If you don't have a specific structure or specific web form templates, it will be more difficult for you to manage this.