public bool UpdateSessionAcceptReject(AcceptRej AR)
 {
     try
     {
         using (SqlConnection con = new SqlConnection(connectionString))
         {
             bool Res_CDF;
             if (AR.CDFResponse == "Y")
             {
                 Res_CDF = true;
             }
             else
             {
                 Res_CDF = false;
             }
             string     strCommand = "update tbl_Session set CDF_Acceptance=@CDF_Acceptance where CDF_Id=@CDF_Id and Student_Id=@Student_Id";
             SqlCommand cmd        = new SqlCommand(strCommand, con);
             cmd.Parameters.AddWithValue("@CDF_Acceptance", Res_CDF);
             cmd.Parameters.AddWithValue("@CDF_Id", AR.CDFId);
             cmd.Parameters.AddWithValue("@Student_Id", AR.StudentId);
             con.Open();
             int i = cmd.ExecuteNonQuery();
             if (i > 0)
             {
                 return(true);
             }
             else
             {
                 return(false);
             }
         }
     }
     catch (Exception ex)
     {
         Log.Error(ex);
         return(false);
     }
 }
 public bool UpdateSession([FromBody] AcceptRej AR)
 {
     return(SR.UpdateSessionAcceptReject(AR));
 }