I would like to search record by two dates, the two dates will be selected by a user via calendar. This is how I wrote the query:

public List<Staff> GetStaff(DateTime DateOne, DateTime DateTwo, string staffColourCode)

{

    List<Staff> l= new List<Staff>();

    SqlConnection conn = new connection etc...

    SqlCommand command = new SqlCommand("SELECT * FROM TableName WHERE CAST(Time AS date) BETWEEN @Time and @Time", conn);

    command.Parameters.AddWithValue("@Time", DateOne);

    conn.Open();

    SqlDataReader reader = command.ExecuteReader();

    while (reader.Read())

    {

        Staff s= new Staff();

        s.Name= reader["Name"].ToString();

        etc...

        l.Add(s);

    }

    conn.Close();

    return l;

}

In my database if i replace Time with some date then it works but how do i write a query that allows a users to select two dates and based on DateOne and DateTwo search the list of Staff who has a colour code of whatever a user selects e.g. Green, Yellow etc...