SharePoint 2007 - Issue Archiver

IssuesItemEventReceiver.cs

using System;
using System.Diagnostics;
using Microsoft.SharePoint;

namespace EricSFeatures
{    
    public class IssuesItemEventReceiver : SPItemEventReceiver
    {
        string sArchiveList = "Issues Archive";
        string sArchiveFieldClosed = "Closed";
        string sArchiveFieldCNC = "CouldNotClose";

        public override void ItemUpdated(SPItemEventProperties properties)
        {
                SPListItem sourceItem=null;
                SPWeb site = null;

                try
                {
                    DisableEventFiring();
                     if ((properties.ListItem[sArchiveFieldClosed]!=null && properties.ListItem[sArchiveFieldClosed].ToString().Trim('#', ';').ToUpper() == "CLOSED") || (properties.ListItem[sArchiveFieldCNC]!=null && properties.ListItem[sArchiveFieldCNC].ToString().Trim('#', ';').ToUpper() == "COULD NOT CLOSE"))
                    {  
                        sourceItem = properties.ListItem;
                        site = properties.OpenWeb();
                        SPList listIssuesArchive = site.Lists[sArchiveList];
                        SPListItem archiveItem = listIssuesArchive.Items.Add();
                        for (int i = sourceItem.Versions.Count - 1; i >= 0; i--)
                        {
                            foreach (SPField sourceField in sourceItem.Fields)
                            {
                                SPFieldType ArchiveSourceType = sourceField.Type;
                                SPListItemVersion version = sourceItem.Versions[i];
                                if ((!sourceField.ReadOnlyField) && (ArchiveSourceType != SPFieldType.Attachments))
                                {
                                    archiveItem[sourceField.Title] = version[sourceField.Title];
                                }
                                else
                                {
                                    if (sourceField.Title == "Created" || sourceField.Title == "Created By" || sourceField.Title == "Modified" || sourceField.Title == "Modified By")
                                    {
                                        archiveItem[sourceField.Title] = version[sourceField.Title];
                                    }
                                }
                            }
                            archiveItem.Update();
                        }
                        foreach (string attachmentName in sourceItem.Attachments)
                        {
                            SPFile file = sourceItem.ParentList.ParentWeb.GetFile(sourceItem.Attachments.UrlPrefix + attachmentName);
                            archiveItem.Attachments.Add(attachmentName, file.OpenBinary());
                        }
                        archiveItem.Update();
                        sourceItem.Delete();
                    }
                }
                catch (Exception e)
                {
                    string sSource;
                    string sLog;
                    string sEvent;

                    sSource = "IssueArchiver";
                    sLog = "Application";
                    sEvent = e.ToString() + ":   Most likely the Issues list and the Issues Archive list have mismatching fields";

                    if (!EventLog.SourceExists(sSource))
                    {
                        EventLog.CreateEventSource(sSource, sLog);
                    }                        
                    EventLog.WriteEntry(sSource, sEvent, EventLogEntryType.Error, 888);
                }
                finally
                {
                    if (site != null)
                    {
                        site.Dispose();
                    }
                    EnableEventFiring();              
                }
        }
    }
    public class IssuesArchiveItemEventReceiver : SPItemEventReceiver
    {
        string sIssuesList = "Issues";
        string sIssuesFieldClosed = "Closed";
        string sIssuesFieldCNC = "CouldNotClose";

        public override void ItemUpdated(SPItemEventProperties properties)
        {
            SPWeb site = null;
            SPListItem sourceItem = null;

            try
            {
                DisableEventFiring();
                if ((properties.ListItem[sIssuesFieldClosed] == null && properties.ListItem[sIssuesFieldCNC] == null))
                {
                    sourceItem = properties.ListItem;
                    site = properties.OpenWeb();
                    SPList listIssues = site.Lists[sIssuesList];
                    SPListItem IssuesItem = listIssues.Items.Add();
                    for (int i = sourceItem.Versions.Count - 1; i >= 0; i--)
                    {
                        foreach (SPField sourceField in sourceItem.Fields)
                        {
                            SPFieldType IssuesSourceType = sourceField.Type;
                            SPListItemVersion version = sourceItem.Versions[i];
                            if ((!sourceField.ReadOnlyField) && (IssuesSourceType != SPFieldType.Attachments))
                            {
                                IssuesItem[sourceField.Title] = version[sourceField.Title];
                            }
                            else
                                if (sourceField.Title == "Created" || sourceField.Title == "Created By" || sourceField.Title == "Modified" || sourceField.Title == "Modified By")
                                {
                                    IssuesItem[sourceField.Title] = version[sourceField.Title];
                                }
                        }
                        IssuesItem.Update();
                    }
                    foreach (string attachmentName in sourceItem.Attachments)
                    {
                        SPFile file = sourceItem.ParentList.ParentWeb.GetFile(sourceItem.Attachments.UrlPrefix + attachmentName);
                        IssuesItem.Attachments.Add(attachmentName, file.OpenBinary());
                    }
                    IssuesItem.Update();
                    sourceItem.Delete();
                }
            }
            catch (Exception e)
            {
                string sSource;
                string sLog;
                string sEvent;

                sSource = "IssueArchiver";
                sLog = "Application";
                sEvent = e.ToString() + ":   Most likely the Issues list and the Issues Archive list have mismatching fields";

                if (!EventLog.SourceExists(sSource))
                {
                    EventLog.CreateEventSource(sSource, sLog);
                }
                EventLog.WriteEntry(sSource, sEvent, EventLogEntryType.Error, 888);
            }
            finally
            {
                if (site != null)
                {
                    site.Dispose();
                }
                EnableEventFiring();
            }           
        }
    }
}