Dynamically add columns based on user selection ASP.NET MVC

Question

Hello,
In my application have multiple admins. Admin can define the fields(Admin can define the columns).
Based on admin i have to get the data's from client users and save it to my MSSQL database.

Example

Admin 1
User Name	Address
Admin 2
UserName	Address	Phone No
Admin 3
User Name	Address	Phone No	Email_id

I am developing this application using ASP.NET MVC, C#, SQL Server.

Please suggest me to do that.

Thanks,
Ben