I’m trying to find the Exception ex message for why my Table Update is failing. But I can only see the result 0 and Record Failed to update.

Here is my code :

public int UpdatePatient(Patient patient)
  {
      int result = 0;
      try
      {
          result = _db.Update(patient);

          if (result == 0)
          {
              // Show error message
              Debug.WriteLine("Failed to update patient.");
              //return -1;
          }
          else
          {
              //return result;
          }
      }
      catch (Exception ex)
      {
          // Show error message
          Debug.WriteLine("An error occurred while updating the patient: " + ex.Message);

          //return -1;
      }   
   
      return result;  

  }

And it is called using the following:

 PatientRepository pr = new PatientRepository();
    int success = pr.UpdatePatient(patient);

How can I capture the Exception message that will tell me “why” it is failing?