/// <summary>
/// This function will have the business logic for adding a row in SQL table
/// </summary>
/// <param name="stddto">A StudentDTO object with values to be added</param>
/// <returns>Primary Key of the inserted row</returns>
public int AddBL(StudentDTO stddto)
{
Student std = mapper.ToModelObj(stddto);
int result = stddal.AddDL(std);
return(result);
}