The video below shows you how to create a C# Script. While this video uses the CORE HL7 Viewer software to access a CORE HL7 Script Library, the steps are identical across all platforms that use CORE HL7 C# Scripting.

Creating Your First CORE HL7 Script

//This very simple script only does a couple of simple things

//It resets the Message Control ID to a GUID and it changes the

//Patient Name to John Smith

using System;

using COREHL7;

using COREHL7ScriptHost;

/* ABOVE are the using statements which are required */

using System.Collections.Generic;

using System.Linq;

using System.IO;

using System.Xml;

using System.Data;

using System.Data.SqlClient;

using System.Text;

/* ABOVE are the optional using statements you can include */

      public static COREHL7Script globals;

      public static CHS_Message MyMessage;

      public class Script

       {

          public void Execute(COREHL7Script parent)

           {

               globals = parent;

              try

               {

                   globals.Trace("Script is running.");

                   globals.Completed = true;

                  if (string.IsNullOrEmpty(globals.InitialHL7Message))

                   {

                       globals.SetException("No action required.No initial message", "Script()", 321342);

                       globals.Completed = true;

                      return;

                   }

                   MyMessage = globals.CreateInitialMessage();

                  if (globals.HasException)

                   {

                       globals.MoveInitialMessageToError();

                       globals.Completed = true;

                      return;

                   }

                  //We will set the Message Control ID (MSH 10.1) to a GUID

                   MyMessage.MessageControlID = System.Guid.NewGuid().ToString();

                  CHS_Segment pid = MyMessage.GetFirstSegmentNamed("PID");

                  if (pid != null)

                   {

                      //Get the Patient Name Field

                      CHS_Field pid5 = pid.GetFieldToEdit(5);

                      //Set Last Name and First Name just for fun

                       pid5.SetValue("Smith", 1); //Last Name

                       pid5.SetValue("John", 2); //First Name

                   }

                  //Commit message to see changes in viewer OR write to output folder in Script Engine

                   globals.CommitMessage(MyMessage);

                   globals.Completed = true;

                  return;

               }

              catch (Exception ex)

               {

                  //This SetException method is your global method to handle exceptions

                   globals.SetException("System Error: " + ex.Message, "RunScript()", 10201);

                   globals.Completed = false;

                  return;

               }

           }

       } //End of Script Class

      /* This line below MUST be the LAST line in your script */

      return new Script();