public void InsertAssignments(Assignments a)
        {
            cnn.Open();
            SqlCommand cmd = new SqlCommand("INSERT INTO AssignmentDetails VALUES(@AssignmentName,@EmployeeName,@Date)", cnn);

            cmd.Parameters.AddWithValue("@AssignmentName", a.AssignmentName);
            cmd.Parameters.AddWithValue("@EmployeeName", a.EmployeeName);
            cmd.Parameters.AddWithValue("@Date", a.Date);
            cmd.ExecuteNonQuery();
            cnn.Close();
        }
        public Assignments FindAssignments(int AssignmentId)
        {
            cnn.Open();
            SqlCommand cmd = new SqlCommand("SELECT * FROM AssignmentDetails WHERE AssignmentId=" + AssignmentId, cnn);

            cmd.Parameters.AddWithValue("@AssignmentId", AssignmentId);
            SqlDataReader dr = cmd.ExecuteReader();
            Assignments   a  = new Assignments();

            while (dr.Read())
            {
                a.AssignmentId   = Int32.Parse(dr["AssignmentId"].ToString());
                a.AssignmentName = dr["AssignmentName"].ToString();
                a.EmployeeName   = dr["EmployeeName"].ToString();
                a.Date           = DateTime.Parse(dr["Date"].ToString());
            }
            ;
            cnn.Close();
            return(a);
        }
        public List <Assignments> GetAssignments()
        {
            cnn.Open();
            SqlCommand         cmd           = new SqlCommand("SELECT * FROM AssignmentDetails", cnn);
            SqlDataReader      dr            = cmd.ExecuteReader();
            List <Assignments> GlAssignments = new List <Assignments>();

            while (dr.Read())
            {
                Assignments a = new Assignments
                {
                    AssignmentId   = Int32.Parse(dr["AssignmentId"].ToString()),
                    AssignmentName = dr["AssignmentName"].ToString(),
                    EmployeeName   = dr["EmployeeName"].ToString(),
                    Date           = DateTime.Parse(dr["Date"].ToString())
                };
                GlAssignments.Add(a);
            }
            cnn.Close();
            return(GlAssignments);
        }