Create collection of Anonymous Types and also call Extension Methods.

var StudentDetail = new {ID=0, FirstName="", MiddleName="", LastName="", Age=1, Sex=''};




var StudentRecords = TypeGenerator.MakeList(StudentDetail)


StudentRecords.Add(new
{
 ID = 1,
 FirstName  = "Sankar",
 LastName   = "Manickam",
 MiddleName = "P",
 Age = 25,
 Sex = "M"

});


public static class TypeGenerator
{
        public static List <T> MakeList <T>(this T t)
        {
            return new List <T>();
        }
}