// ========================================================================
// Copyright 2007 - Volian Enterprises, Inc. All rights reserved.          
// Volian Enterprises - Proprietary Information - DO NOT COPY OR DISTRIBUTE
// ------------------------------------------------------------------------
// $Workfile: $     $Revision: $                                           
// $Author: $   $Date: $                                                   
//                                                                         
// $History: $                                                             
// ========================================================================

using System;
using System.Data;
using System.Data.SqlClient;
using Csla;
using Csla.Data;
using System.Configuration;
using System.IO;
using System.ComponentModel;
using System.Collections.Generic;
using Csla.Validation;
namespace VEPROMS.CSLA.Library
{
	/// <summary>
	///	Item Generated by MyGeneration using the CSLA Object Mapping template
	/// </summary>
	[Serializable()]
	[TypeConverter(typeof(ItemConverter))]
	public partial class Item : BusinessBase<Item>, IDisposable, IVEHasBrokenRules
	{
		#region Log4Net
		private static readonly log4net.ILog _MyLog = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
		#endregion
		#region Refresh
		private List<Item> _RefreshItems = new List<Item>();
		private List<ItemAnnotation> _RefreshItemAnnotations = new List<ItemAnnotation>();
		private List<ItemDocVersion> _RefreshItemDocVersions = new List<ItemDocVersion>();
		private List<ItemPart> _RefreshItemParts = new List<ItemPart>();
		private List<ItemTransition_RangeID> _RefreshItemTransitions_RangeID = new List<ItemTransition_RangeID>();
		private List<ItemTransition_ToID> _RefreshItemTransitions_ToID = new List<ItemTransition_ToID>();
		private void AddToRefreshList(List<Item> refreshItems, List<ItemAnnotation> refreshItemAnnotations, List<ItemDocVersion> refreshItemDocVersions, List<ItemPart> refreshItemParts, List<ItemTransition_RangeID> refreshItemTransitions_RangeID, List<ItemTransition_ToID> refreshItemTransitions_ToID)
		{
			if (IsDirty)
				refreshItems.Add(this);
			if (_ItemAnnotations != null && _ItemAnnotations.IsDirty)
			{
				foreach (ItemAnnotation tmp in _ItemAnnotations)
				{
					if (tmp.IsDirty) refreshItemAnnotations.Add(tmp);
				}
			}
			if (_ItemDocVersions != null && _ItemDocVersions.IsDirty)
			{
				foreach (ItemDocVersion tmp in _ItemDocVersions)
				{
					if (tmp.IsDirty) refreshItemDocVersions.Add(tmp);
				}
			}
			if (_NextItems != null && _NextItems.IsDirty)
			{
				foreach (Item tmp in _NextItems)
				{
					tmp.AddToRefreshList(refreshItems, refreshItemAnnotations, refreshItemDocVersions, refreshItemParts, refreshItemTransitions_RangeID, refreshItemTransitions_ToID);
				}
			}
			if (_ItemParts != null && _ItemParts.IsDirty)
			{
				foreach (ItemPart tmp in _ItemParts)
				{
					if (tmp.IsDirty) refreshItemParts.Add(tmp);
				}
			}
			if (_ItemTransitions_RangeID != null && _ItemTransitions_RangeID.IsDirty)
			{
				foreach (ItemTransition_RangeID tmp in _ItemTransitions_RangeID)
				{
					if (tmp.IsDirty) refreshItemTransitions_RangeID.Add(tmp);
				}
			}
			if (_ItemTransitions_ToID != null && _ItemTransitions_ToID.IsDirty)
			{
				foreach (ItemTransition_ToID tmp in _ItemTransitions_ToID)
				{
					if (tmp.IsDirty) refreshItemTransitions_ToID.Add(tmp);
				}
			}
		}
		private void ClearRefreshList()
		{
			_RefreshItems = new List<Item>();
			_RefreshItemAnnotations = new List<ItemAnnotation>();
			_RefreshItemDocVersions = new List<ItemDocVersion>();
			_RefreshItemParts = new List<ItemPart>();
			_RefreshItemTransitions_RangeID = new List<ItemTransition_RangeID>();
			_RefreshItemTransitions_ToID = new List<ItemTransition_ToID>();
		}
		private void BuildRefreshList()
		{
			ClearRefreshList();
			AddToRefreshList(_RefreshItems, _RefreshItemAnnotations, _RefreshItemDocVersions, _RefreshItemParts, _RefreshItemTransitions_RangeID, _RefreshItemTransitions_ToID);
		}
		private void ProcessRefreshList()
		{
			foreach (Item tmp in _RefreshItems)
			{
				if (tmp._MyContent != null)
				{
					ContentInfo.Refresh(tmp._MyContent);
					if (tmp._MyContent.MyImage != null) ImageInfo.Refresh(tmp._MyContent.MyImage);
				}
				ItemInfo.Refresh(tmp);
			}
			foreach (ItemAnnotation tmp in _RefreshItemAnnotations)
			{
				AnnotationInfo.Refresh(tmp);
			}
			foreach (ItemDocVersion tmp in _RefreshItemDocVersions)
			{
				DocVersionInfo.Refresh(tmp);
			}
			foreach (ItemPart tmp in _RefreshItemParts)
			{
				PartInfo.Refresh(tmp);
			}
			foreach (ItemTransition_RangeID tmp in _RefreshItemTransitions_RangeID)
			{
				TransitionInfo.Refresh(tmp);
			}
			foreach (ItemTransition_ToID tmp in _RefreshItemTransitions_ToID)
			{
				TransitionInfo.Refresh(tmp);
			}
			ClearRefreshList();
		}
		#endregion
		#region Collection
		private static List<Item> _CacheList = new List<Item>();
		protected static void AddToCache(Item item)
		{
			if (!_CacheList.Contains(item)) _CacheList.Add(item); // In AddToCache
		}
		protected static void RemoveFromCache(Item item)
		{
			while (_CacheList.Contains(item)) _CacheList.Remove(item); // In RemoveFromCache
		}
		private static Dictionary<string, List<Item>> _CacheByPrimaryKey = new Dictionary<string, List<Item>>();
		private static void ConvertListToDictionary()
		{
			while (_CacheList.Count > 0) // Move Item(s) from temporary _CacheList to _CacheByPrimaryKey
			{
				Item tmp = _CacheList[0]; // Get the first Item
				string pKey = tmp.ItemID.ToString();
				if (!_CacheByPrimaryKey.ContainsKey(pKey))
				{
					_CacheByPrimaryKey[pKey] = new List<Item>(); // Add new list for PrimaryKey
				}
				_CacheByPrimaryKey[pKey].Add(tmp); // Add to Primary Key list
				_CacheList.RemoveAt(0); // Remove the first Item
			}
		}
		protected static Item GetCachedByPrimaryKey(int itemID)
		{
			ConvertListToDictionary();
			string key = itemID.ToString();
			if (_CacheByPrimaryKey.ContainsKey(key)) return _CacheByPrimaryKey[key][0];
			return null;
		}
		#endregion
		#region Business Methods
		private string _ErrorMessage = string.Empty;
		public string ErrorMessage
		{
			get { return _ErrorMessage; }
		}
		private static int _nextItemID = -1;
		public static int NextItemID
		{
			get { return _nextItemID--; }
		}
		private int _ItemID;
		[System.ComponentModel.DataObjectField(true, true)]
		public int ItemID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemID", true);
				return _ItemID;
			}
		}
		private int? _PreviousID;
		public int? PreviousID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("PreviousID", true);
				if (_MyPrevious != null) _PreviousID = _MyPrevious.ItemID;
				return _PreviousID;
			}
		}
		private Item _MyPrevious;
		public Item MyPrevious
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("MyPrevious", true);
				if (_MyPrevious == null && _PreviousID != null) _MyPrevious = Item.Get((int)_PreviousID);
				return _MyPrevious;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("MyPrevious", true);
				if ((_MyPrevious == null ? _PreviousID : (int?)_MyPrevious.ItemID) != (value == null ? null : (int?)value.ItemID))
				{
					_MyPrevious = value;
					_PreviousID = (value == null ? null : (int?)value.ItemID);
					PropertyHasChanged();
				}
			}
		}
		private int _ContentID;
		public int ContentID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ContentID", true);
				if (_MyContent != null) _ContentID = _MyContent.ContentID;
				return _ContentID;
			}
		}
		private Content _MyContent;
		public Content MyContent
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("MyContent", true);
				if (_MyContent == null && _ContentID != 0) _MyContent = Content.Get(_ContentID);
				return _MyContent;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("MyContent", true);
				if (_MyContent != value)
				{
					_MyContent = value;
					_ContentID = value.ContentID;// Update underlying data field
					PropertyHasChanged();
				}
			}
		}
		private DateTime _DTS = new DateTime();
		public DateTime DTS
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("DTS", true);
				return _DTS;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("DTS", true);
				if (_DTS != value)
				{
					_DTS = value;
					PropertyHasChanged();
				}
			}
		}
		private string _UserID = string.Empty;
		public string UserID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("UserID", true);
				return _UserID;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("UserID", true);
				if (value == null) value = string.Empty;
				if (_UserID != value)
				{
					_UserID = value;
					PropertyHasChanged();
				}
			}
		}
		private byte[] _LastChanged = new byte[8];//timestamp
		private int _ItemAnnotationCount = 0;
		/// <summary>
		/// Count of ItemAnnotations for this Item
		/// </summary>
		public int ItemAnnotationCount
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemAnnotationCount", true);
				return _ItemAnnotationCount;
			}
		}
		private ItemAnnotations _ItemAnnotations = null;
		/// <summary>
		/// Related Field
		/// </summary>
		[TypeConverter(typeof(ItemAnnotationsConverter))]
		public ItemAnnotations ItemAnnotations
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemAnnotations", true);
				if (_ItemAnnotationCount < 0 || (_ItemAnnotationCount > 0 && _ItemAnnotations == null))
					_ItemAnnotations = ItemAnnotations.GetByItemID(ItemID);
				if (_ItemAnnotationCount < 0 )
					_ItemAnnotationCount = _ItemAnnotations == null ? 0 : _ItemAnnotations.Count;
				if (_ItemAnnotations == null)
					_ItemAnnotations = ItemAnnotations.New();
				return _ItemAnnotations;
			}
		}
		public void Reset_ItemAnnotations()
		{
			_ItemAnnotationCount = -1;
		}
		private int _ItemDocVersionCount = 0;
		/// <summary>
		/// Count of ItemDocVersions for this Item
		/// </summary>
		public int ItemDocVersionCount
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemDocVersionCount", true);
				return _ItemDocVersionCount;
			}
		}
		private ItemDocVersions _ItemDocVersions = null;
		/// <summary>
		/// Related Field
		/// </summary>
		[TypeConverter(typeof(ItemDocVersionsConverter))]
		public ItemDocVersions ItemDocVersions
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemDocVersions", true);
				if (_ItemDocVersionCount < 0 || (_ItemDocVersionCount > 0 && _ItemDocVersions == null))
					_ItemDocVersions = ItemDocVersions.GetByItemID(ItemID);
				if (_ItemDocVersionCount < 0 )
					_ItemDocVersionCount = _ItemDocVersions == null ? 0 : _ItemDocVersions.Count;
				if (_ItemDocVersions == null)
					_ItemDocVersions = ItemDocVersions.New();
				return _ItemDocVersions;
			}
		}
		public void Reset_ItemDocVersions()
		{
			_ItemDocVersionCount = -1;
		}
		private int _NextItemCount = 0;
		/// <summary>
		/// Count of NextItems for this Item
		/// </summary>
		public int NextItemCount
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("NextItemCount", true);
				return _NextItemCount;
			}
		}
		private NextItems _NextItems = null;
		/// <summary>
		/// Related Field
		/// </summary>
		[TypeConverter(typeof(NextItemsConverter))]
		public NextItems NextItems
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("NextItems", true);
				if (_NextItemCount < 0 || (_NextItemCount > 0 && _NextItems == null))
					_NextItems = NextItems.GetByPreviousID(ItemID);
				if (_NextItemCount < 0 )
					_NextItemCount = _NextItems == null ? 0 : _NextItems.Count;
				if (_NextItems == null)
					_NextItems = NextItems.New();
				return _NextItems;
			}
		}
		public void Reset_NextItems()
		{
			_NextItemCount = -1;
		}
		private int _ItemPartCount = 0;
		/// <summary>
		/// Count of ItemParts for this Item
		/// </summary>
		public int ItemPartCount
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemPartCount", true);
				return _ItemPartCount;
			}
		}
		private ItemParts _ItemParts = null;
		/// <summary>
		/// Related Field
		/// </summary>
		[TypeConverter(typeof(ItemPartsConverter))]
		public ItemParts ItemParts
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemParts", true);
				if (_ItemPartCount < 0 || (_ItemPartCount > 0 && _ItemParts == null))
					_ItemParts = ItemParts.GetByItemID(ItemID);
				if (_ItemPartCount < 0 )
					_ItemPartCount = _ItemParts == null ? 0 : _ItemParts.Count;
				if (_ItemParts == null)
					_ItemParts = ItemParts.New();
				return _ItemParts;
			}
		}
		public void Reset_ItemParts()
		{
			_ItemPartCount = -1;
		}
		private int _ItemTransition_RangeIDCount = 0;
		/// <summary>
		/// Count of ItemTransitions for this Item
		/// </summary>
		public int ItemTransition_RangeIDCount
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemTransition_RangeIDCount", true);
				return _ItemTransition_RangeIDCount;
			}
		}
		private ItemTransitions_RangeID _ItemTransitions_RangeID = null;
		/// <summary>
		/// Related Field
		/// </summary>
		[TypeConverter(typeof(ItemTransitions_RangeIDConverter))]
		public ItemTransitions_RangeID ItemTransitions_RangeID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemTransitions_RangeID", true);
				if (_ItemTransition_RangeIDCount < 0 || (_ItemTransition_RangeIDCount > 0 && _ItemTransitions_RangeID == null))
					_ItemTransitions_RangeID = ItemTransitions_RangeID.GetByRangeID(ItemID);
				if (_ItemTransition_RangeIDCount < 0 )
					_ItemTransition_RangeIDCount = _ItemTransitions_RangeID == null ? 0 : _ItemTransitions_RangeID.Count;
				if (_ItemTransitions_RangeID == null)
					_ItemTransitions_RangeID = ItemTransitions_RangeID.New();
				return _ItemTransitions_RangeID;
			}
		}
		public void Reset_ItemTransitions_RangeID()
		{
			_ItemTransition_RangeIDCount = -1;
		}
		private int _ItemTransition_ToIDCount = 0;
		/// <summary>
		/// Count of ItemTransitions for this Item
		/// </summary>
		public int ItemTransition_ToIDCount
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemTransition_ToIDCount", true);
				return _ItemTransition_ToIDCount;
			}
		}
		private ItemTransitions_ToID _ItemTransitions_ToID = null;
		/// <summary>
		/// Related Field
		/// </summary>
		[TypeConverter(typeof(ItemTransitions_ToIDConverter))]
		public ItemTransitions_ToID ItemTransitions_ToID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemTransitions_ToID", true);
				if (_ItemTransition_ToIDCount < 0 || (_ItemTransition_ToIDCount > 0 && _ItemTransitions_ToID == null))
					_ItemTransitions_ToID = ItemTransitions_ToID.GetByToID(ItemID);
				if (_ItemTransition_ToIDCount < 0 )
					_ItemTransition_ToIDCount = _ItemTransitions_ToID == null ? 0 : _ItemTransitions_ToID.Count;
				if (_ItemTransitions_ToID == null)
					_ItemTransitions_ToID = ItemTransitions_ToID.New();
				return _ItemTransitions_ToID;
			}
		}
		public void Reset_ItemTransitions_ToID()
		{
			_ItemTransition_ToIDCount = -1;
		}
		public override bool IsDirty
		{
			get 
			{
				if ( base.IsDirty ) 
					return true;
				return IsDirtyList(new List<object>());
			}
		}
		public bool IsDirtyList(List<object> list)
		{
			if (base.IsDirty || list.Contains(this))
				return base.IsDirty;
			list.Add(this);
			return base.IsDirty || (_ItemAnnotations == null ? false : _ItemAnnotations.IsDirtyList(list)) || (_ItemDocVersions == null ? false : _ItemDocVersions.IsDirtyList(list)) || (_NextItems == null ? false : _NextItems.IsDirtyList(list)) || (_ItemParts == null ? false : _ItemParts.IsDirtyList(list)) || (_ItemTransitions_RangeID == null ? false : _ItemTransitions_RangeID.IsDirtyList(list)) || (_ItemTransitions_ToID == null ? false : _ItemTransitions_ToID.IsDirtyList(list)) || (_MyContent == null ? false : _MyContent.IsDirtyList(list));
		}
		public override bool IsValid
		{
			get { return IsValidList(new List<object>()); }
		}
		public bool IsValidList(List<object> list)
		{
			if(list.Contains(this))
				return (IsNew && !IsDirty) ? true : base.IsValid;
			list.Add(this);
			return ((IsNew && !IsDirty) ? true : base.IsValid) && (_ItemAnnotations == null ? true : _ItemAnnotations.IsValidList(list)) && (_ItemDocVersions == null ? true : _ItemDocVersions.IsValidList(list)) && (_NextItems == null ? true : _NextItems.IsValidList(list)) && (_ItemParts == null ? true : _ItemParts.IsValidList(list)) && (_ItemTransitions_RangeID == null ? true : _ItemTransitions_RangeID.IsValidList(list)) && (_ItemTransitions_ToID == null ? true : _ItemTransitions_ToID.IsValidList(list)) && (_MyContent == null ? true : _MyContent.IsValidList(list));
		}
		// CSLATODO: Replace base Item.ToString function as necessary
		/// <summary>
		/// Overrides Base ToString
		/// </summary>
		/// <returns>A string representation of current Item</returns>
		//public override string ToString()
		//{
		//  return base.ToString();
		//}
		// CSLATODO: Check Item.GetIdValue to assure that the ID returned is unique
		/// <summary>
		/// Overrides Base GetIdValue - Used internally by CSLA to determine equality
		/// </summary>
		/// <returns>A Unique ID for the current Item</returns>
		protected override object GetIdValue()
		{
			return MyItemUnique; // Absolutely Unique ID
		}
		#endregion
		#region ValidationRules
		[NonSerialized]
		private bool _CheckingBrokenRules = false;
		public IVEHasBrokenRules HasBrokenRules
		{
			get
			{
				if (_CheckingBrokenRules) return null;
				if ((IsDirty || !IsNew) && BrokenRulesCollection.Count > 0) return this;
				try
				{
					_CheckingBrokenRules = true;
					IVEHasBrokenRules hasBrokenRules = null;
					if (_ItemAnnotations != null && (hasBrokenRules = _ItemAnnotations.HasBrokenRules) != null) return hasBrokenRules;
					if (_ItemDocVersions != null && (hasBrokenRules = _ItemDocVersions.HasBrokenRules) != null) return hasBrokenRules;
					if (_NextItems != null && (hasBrokenRules = _NextItems.HasBrokenRules) != null) return hasBrokenRules;
					if (_ItemParts != null && (hasBrokenRules = _ItemParts.HasBrokenRules) != null) return hasBrokenRules;
					if (_ItemTransitions_RangeID != null && (hasBrokenRules = _ItemTransitions_RangeID.HasBrokenRules) != null) return hasBrokenRules;
					if (_ItemTransitions_ToID != null && (hasBrokenRules = _ItemTransitions_ToID.HasBrokenRules) != null) return hasBrokenRules;
					if (_MyContent != null && (hasBrokenRules = _MyContent.HasBrokenRules) != null) return hasBrokenRules;
					return hasBrokenRules;
				}
				finally
				{
					_CheckingBrokenRules = false;
				}
			}
		}
		public BrokenRulesCollection BrokenRules
		{
			get
			{
				IVEHasBrokenRules hasBrokenRules = HasBrokenRules;
				if (this.Equals(hasBrokenRules)) return BrokenRulesCollection;
				return (hasBrokenRules != null ? hasBrokenRules.BrokenRules : null);
			}
		}
		protected override void AddBusinessRules()
		{
			ValidationRules.AddRule<Item>(MyContentRequired, "MyContent");
			ValidationRules.AddRule(
				Csla.Validation.CommonRules.StringRequired, "UserID");
			ValidationRules.AddRule(
				Csla.Validation.CommonRules.StringMaxLength,
				new Csla.Validation.CommonRules.MaxLengthRuleArgs("UserID", 100));
			//ValidationRules.AddDependantProperty("x", "y");
			_ItemExtension.AddValidationRules(ValidationRules);
			// CSLATODO:  Add other validation rules
		}
		protected override void AddInstanceBusinessRules()
		{
			_ItemExtension.AddInstanceValidationRules(ValidationRules);
			// CSLATODO:  Add other validation rules
		}
		private static bool MyContentRequired(Item target, Csla.Validation.RuleArgs e)
		{
			if (target._ContentID == 0 && target._MyContent == null) // Required field missing
			{
				e.Description = "Required";
				return false;
			}
			return true;
		}
		// Sample data comparison validation rule
		//private bool StartDateGTEndDate(object target, Csla.Validation.RuleArgs e)
		//{
		//	if (_started > _ended)
		//	{
		//		e.Description = "Start date can't be after end date";
		//		return false;
		//	}
		//	else
		//		return true;
		//}
		#endregion
		#region Authorization Rules
		protected override void AddAuthorizationRules()
		{
			//CSLATODO: Who can read/write which fields
			//AuthorizationRules.AllowRead(ItemID, "<Role(s)>");
			//AuthorizationRules.AllowRead(PreviousID, "<Role(s)>");
			//AuthorizationRules.AllowRead(ContentID, "<Role(s)>");
			//AuthorizationRules.AllowRead(DTS, "<Role(s)>");
			//AuthorizationRules.AllowRead(UserID, "<Role(s)>");
			//AuthorizationRules.AllowWrite(PreviousID, "<Role(s)>");
			//AuthorizationRules.AllowWrite(ContentID, "<Role(s)>");
			//AuthorizationRules.AllowWrite(DTS, "<Role(s)>");
			//AuthorizationRules.AllowWrite(UserID, "<Role(s)>");
			_ItemExtension.AddAuthorizationRules(AuthorizationRules);
		}
		protected override void AddInstanceAuthorizationRules()
		{
			//CSLATODO: Who can read/write which fields
			_ItemExtension.AddInstanceAuthorizationRules(AuthorizationRules);
		}
		public static bool CanAddObject()
		{
			// CSLATODO: Can Add Authorization
			//return Csla.ApplicationContext.User.IsInRole("ProjectManager");
			return true;
		}
		public static bool CanGetObject()
		{
			// CSLATODO: CanGet Authorization
			return true;
		}
		public static bool CanDeleteObject()
		{
			// CSLATODO: CanDelete Authorization
			//bool result = false;
			//if (Csla.ApplicationContext.User.IsInRole("ProjectManager"))result = true;
			//if (Csla.ApplicationContext.User.IsInRole("Administrator"))result = true;
			//return result;
			return true;
		}
		/// <summary>
		/// determines if related records (Foreign Keys) will keep this Item from being deleted
		/// </summary>
		public bool CanDelete
		{
			get
			{
				// Check to make sure that there are not any related records
				int usedByCount = 0;
				usedByCount += _ItemAnnotationCount;
				usedByCount += _ItemDocVersionCount;
				usedByCount += _ItemPartCount;
				usedByCount += _ItemTransition_RangeIDCount;
				usedByCount += _ItemTransition_ToIDCount;
				usedByCount += _NextItemCount;
				return (usedByCount == 0);
			}
		}
		public static bool CanEditObject()
		{
			// CSLATODO: CanEdit Authorization
			//return Csla.ApplicationContext.User.IsInRole("ProjectManager");
			return true;
		}
		#endregion
		#region Factory Methods
		public int CurrentEditLevel
		{ get { return EditLevel; } }
		private static int _ItemUnique = 0;
		protected static int ItemUnique
		{ get { return ++_ItemUnique; } }
		private int _MyItemUnique = ItemUnique;
		public int MyItemUnique // Absolutely Unique ID - Editable
		{ get { return _MyItemUnique; } }
		protected Item()
		{/* require use of factory methods */
			AddToCache(this);
		}
		private bool _Disposed = false;
		private static int _CountCreated = 0;
		private static int _CountDisposed = 0;
		private static int _CountFinalized = 0;
		private static int IncrementCountCreated
		{ get { return ++_CountCreated; } }
		private int _CountWhenCreated = IncrementCountCreated;
		public static int CountCreated
		{ get { return _CountCreated; } }
		public static int CountNotDisposed
		{ get { return _CountCreated - _CountDisposed; } }
		public static int CountNotFinalized
		{ get { return _CountCreated - _CountFinalized; } }
		~Item()
		{
			_CountFinalized++;
		}
		private bool _DisposeOfContent = true;  // part B2017-060 when Item is in a Using statement, the content was being freed after it's use, we needed the content to stick around

		public bool DisposeOfContent
		{
			get { return _DisposeOfContent; }
			set { _DisposeOfContent = value; }
		}
		public void Dispose()
		{
			if (_Disposed) return;
			_CountDisposed++;
			_Disposed = true;
			RemoveFromDictionaries();
			if (_MyContent != null && DisposeOfContent)
			{
				_MyContent.Dispose();
				_MyContent = null;
			}
			if (_ItemTransitions_RangeID != null)
				_ItemTransitions_RangeID = null;
			if (_ItemTransitions_ToID != null)
				_ItemTransitions_ToID = null;
			//if (_MyPrevious != null)
			//  _MyPrevious = null;
			//if (_NextItems != null)
			//  _NextItems = null;
			//if (_ItemAnnotations != null)
			//  _ItemAnnotations.Dispose();
			//if (_ItemDocVersions != null)
			//  _ItemDocVersions = null;
			//if (_ItemParts != null)
			//  _ItemParts = null;
		}
		private void RemoveFromDictionaries()
		{
			RemoveFromCache(this);
			if (_CacheByPrimaryKey.ContainsKey(ItemID.ToString()))
			{
				List<Item> listItem = _CacheByPrimaryKey[ItemID.ToString()]; // Get the list of items
				while (listItem.Contains(this)) listItem.Remove(this); // Remove the item from the list
				if (listItem.Count == 0) //If there are no items left in the list
					_CacheByPrimaryKey.Remove(ItemID.ToString()); // remove the list
			}
		}
		public static Item New()
		{
			if (!CanAddObject())
				throw new System.Security.SecurityException("User not authorized to add a Item");
			try
			{
				return DataPortal.Create<Item>();
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Item.New", ex);
			}
		}
		public static Item New(Content myContent)
		{
			Item tmp = Item.New();
			tmp.MyContent = myContent;
			return tmp;
		}
		public static Item New(Item myPrevious, Content myContent, DateTime dts, string userID)
		{
			Item tmp = Item.New();
			tmp.MyPrevious = myPrevious;
			tmp.MyContent = myContent;
			tmp.DTS = dts;
			tmp.UserID = userID;
			return tmp;
		}
		public static Item MakeItem(Item myPrevious, Content myContent, DateTime dts, string userID)
		{
			Item tmp = Item.New(myPrevious, myContent, dts, userID);
			if (tmp.IsSavable)
				tmp = tmp.Save();
			else
			{
				Csla.Validation.BrokenRulesCollection brc = tmp.ValidationRules.GetBrokenRules();
				tmp._ErrorMessage = "Failed Validation:";
				foreach (Csla.Validation.BrokenRule br in brc)
				{
					tmp._ErrorMessage += "\r\n\tFailure: " + br.RuleName;
				}
			}
			return tmp;
		}
		public static Item New(Item myPrevious, Content myContent)
		{
			Item tmp = Item.New();
			tmp.MyPrevious = myPrevious;
			tmp.MyContent = myContent;
			return tmp;
		}
		public static Item MakeItem(Item myPrevious, Content myContent)
		{
			Item tmp = Item.New(myPrevious, myContent);
			if (tmp.IsSavable)
				tmp = tmp.Save();
			else
			{
				Csla.Validation.BrokenRulesCollection brc = tmp.ValidationRules.GetBrokenRules();
				tmp._ErrorMessage = "Failed Validation:";
				foreach (Csla.Validation.BrokenRule br in brc)
				{
					tmp._ErrorMessage += "\r\n\tFailure: " + br.RuleName;
				}
			}
			return tmp;
		}
		public static Item Get(int itemID)
		{
			if (!CanGetObject())
				throw new System.Security.SecurityException("User not authorized to view a Item");
			try
			{
				Item tmp = GetCachedByPrimaryKey(itemID);
				if (tmp == null)
				{
					tmp = DataPortal.Fetch<Item>(new PKCriteria(itemID));
					AddToCache(tmp);
				}
				if (tmp.ErrorMessage == "No Record Found") 
				{
					tmp.Dispose(); // Clean-up Item
					tmp = null;
				}
				return tmp;
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Item.Get", ex);
			}
		}
		public static Item Get(SafeDataReader dr, Item previous)
		{
			if (dr.Read()) return new Item(dr, previous);
			return null;
		}
		internal Item(SafeDataReader dr)
		{
			ReadData(dr);
		}
		private Item(SafeDataReader dr, Item previous)
		{
			ReadData(dr);
			MarkAsChild();
		}
		internal Item(SafeDataReader dr, int parentID)
		{
			ReadData(dr);
			MarkAsChild();
		}
		public static void Delete(int itemID)
		{
			if (!CanDeleteObject())
				throw new System.Security.SecurityException("User not authorized to remove a Item");
			try
			{
				DataPortal.Delete(new PKCriteria(itemID));
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Item.Delete", ex);
			}
		}
		public override Item Save()
		{
			if (IsDeleted && !CanDeleteObject())
				throw new System.Security.SecurityException("User not authorized to remove a Item");
			else if (IsNew && !CanAddObject())
				throw new System.Security.SecurityException("User not authorized to add a Item");
			else if (!CanEditObject())
				throw new System.Security.SecurityException("User not authorized to update a Item");
			try
			{
				BuildRefreshList();
				Item item = base.Save();
				RemoveFromDictionaries(); // if save is successful remove the previous Folder from the cache
				AddToCache(item);//Refresh the item in AllList
				ProcessRefreshList();
				return item;
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on CSLA Save", ex);
			}
		}
		#endregion
		#region Data Access Portal
		[Serializable()]
		protected class PKCriteria
		{
			private int _ItemID;
			public int ItemID
			{ get { return _ItemID; } }
			public PKCriteria(int itemID)
			{
				_ItemID = itemID;
			}
		}
		// CSLATODO: If Create needs to access DB - It should not be marked RunLocal
		[RunLocal()]
		private new void DataPortal_Create()
		{
			_ItemID = NextItemID;
			// Database Defaults
			_DTS = _ItemExtension.DefaultDTS;
			_UserID = _ItemExtension.DefaultUserID;
			// CSLATODO: Add any defaults that are necessary
			ValidationRules.CheckRules();
		}
		private void ReadData(SafeDataReader dr)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.ReadData", GetHashCode());
			try
			{
				_ItemID = dr.GetInt32("ItemID");
				_PreviousID = (int?)dr.GetValue("PreviousID");
				_ContentID = dr.GetInt32("ContentID");
				_DTS = dr.GetDateTime("DTS");
				_UserID = dr.GetString("UserID");
				dr.GetBytes("LastChanged", 0, _LastChanged, 0, 8);
				_ItemAnnotationCount = dr.GetInt32("AnnotationCount");
				_ItemDocVersionCount = dr.GetInt32("DocVersionCount");
				_NextItemCount = dr.GetInt32("NextCount");
				_ItemPartCount = dr.GetInt32("PartCount");
				_ItemTransition_RangeIDCount = dr.GetInt32("Transition_RangeIDCount");
				_ItemTransition_ToIDCount = dr.GetInt32("Transition_ToIDCount");
				MarkOld();
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.ReadData", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Item.ReadData", ex);
			}
		}
		private void DataPortal_Fetch(PKCriteria criteria)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.DataPortal_Fetch", GetHashCode());
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					ApplicationContext.LocalContext["cn"] = cn;
					using (SqlCommand cm = cn.CreateCommand())
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "getItem";
						cm.Parameters.AddWithValue("@ItemID", criteria.ItemID);
						cm.CommandTimeout = Database.DefaultTimeout;
						using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
						{
							if (!dr.Read())
							{
								_ErrorMessage = "No Record Found";
								return;
							}
							ReadData(dr);
							// load child objects
							dr.NextResult();
							_ItemAnnotations = ItemAnnotations.Get(dr);
							// load child objects
							dr.NextResult();
							_ItemDocVersions = ItemDocVersions.Get(dr);
							// load child objects
							dr.NextResult();
							_ItemParts = ItemParts.Get(dr);
							// load child objects
							dr.NextResult();
							_ItemTransitions_RangeID = ItemTransitions_RangeID.Get(dr);
							// load child objects
							dr.NextResult();
							_ItemTransitions_ToID = ItemTransitions_ToID.Get(dr);
						}
					}
					// removing of item only needed for local data portal
					if (ApplicationContext.ExecutionLocation == ApplicationContext.ExecutionLocations.Client)
						ApplicationContext.LocalContext.Remove("cn");
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.DataPortal_Fetch", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Item.DataPortal_Fetch", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		protected override void DataPortal_Insert()
		{
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					ApplicationContext.LocalContext["cn"] = cn;
					SQLInsert();
					// removing of item only needed for local data portal
					if (ApplicationContext.ExecutionLocation == ApplicationContext.ExecutionLocations.Client)
						ApplicationContext.LocalContext.Remove("cn");
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.DataPortal_Insert", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Item.DataPortal_Insert", ex);
			}
			finally
			{
				if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.DataPortal_Insert", GetHashCode());
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		internal void SQLInsert()
		{
			if (!this.IsDirty) return;
			try
			{
				if (_MyContent != null) _MyContent.Update();
				SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandTimeout = Database.SQLTimeout;
					cm.CommandText = "addItem";
					// Input All Fields - Except Calculated Columns
					cm.Parameters.AddWithValue("@PreviousID", PreviousID);
					cm.Parameters.AddWithValue("@ContentID", ContentID);
					if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
					cm.Parameters.AddWithValue("@UserID", _UserID);
					// Output Calculated Columns
					SqlParameter param_ItemID = new SqlParameter("@newItemID", SqlDbType.Int);
					param_ItemID.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_ItemID);
					SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
					param_LastChanged.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_LastChanged);
					// CSLATODO: Define any additional output parameters
					cm.ExecuteNonQuery();
					// Save all values being returned from the Procedure
					_ItemID = (int)cm.Parameters["@newItemID"].Value;
					_LastChanged = (byte[])cm.Parameters["@newLastChanged"].Value;
				}
				MarkOld();
				// update child objects
				if (_ItemAnnotations != null) _ItemAnnotations.Update(this);
				if (_ItemDocVersions != null) _ItemDocVersions.Update(this);
				if (_NextItems != null) _NextItems.Update(this);
				if (_ItemParts != null) _ItemParts.Update(this);
				if (_ItemTransitions_RangeID != null) _ItemTransitions_RangeID.Update(this);
				if (_ItemTransitions_ToID != null) _ItemTransitions_ToID.Update(this);
				if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.SQLInsert", GetHashCode());
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.SQLInsert", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Item.SQLInsert", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		public static byte[] Add(SqlConnection cn, ref int itemID, Item myPrevious, Content myContent, DateTime dts, string userID)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.Add", 0);
			try
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandTimeout = Database.SQLTimeout;
					cm.CommandText = "addItem";
					// Input All Fields - Except Calculated Columns
					if (myPrevious != null) cm.Parameters.AddWithValue("@PreviousID", myPrevious.ItemID);
					cm.Parameters.AddWithValue("@ContentID", myContent.ContentID);
					if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
					cm.Parameters.AddWithValue("@UserID", userID);
					// Output Calculated Columns
					SqlParameter param_ItemID = new SqlParameter("@newItemID", SqlDbType.Int);
					param_ItemID.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_ItemID);
					SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
					param_LastChanged.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_LastChanged);
					// CSLATODO: Define any additional output parameters
					cm.ExecuteNonQuery();
					// Save all values being returned from the Procedure
					itemID = (int)cm.Parameters["@newItemID"].Value;
					return (byte[])cm.Parameters["@newLastChanged"].Value;
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.Add", ex);
				throw new DbCslaException("Item.Add", ex);
			}
		}
		public static void DeactivateStateDisplayTabTmp(string UserID)
		{
			using (SqlConnection cn = Database.VEPROMS_SqlConnection)
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					try
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "DeactivateStateDisplayTabTmp";
						cm.CommandTimeout = Database.DefaultTimeout;
						cm.Parameters.AddWithValue("@UserID", UserID);
						cm.ExecuteNonQuery();
					}
					catch (Exception ex)
					{
						//if (_MyLog.IsErrorEnabled) _MyLog.Error("ItemExt.DeactivateStateDisplayTabTmp", ex);
						throw new DbCslaException("ItemExt.DeactivateStateDisplayTabTmp", ex);
					}

				}
			}
		}
		public static void AddDisplayTabsState(int itemID, string displayTabID, string displayTabName, string UserID, int order)
		//private void DataPortal_Fetch(int itemID, string displayTabID, string displayTabName)
		{
			using (SqlConnection cn = Database.VEPROMS_SqlConnection)
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					try
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "AddDisplayTabState";
						cm.CommandTimeout = Database.DefaultTimeout;
						cm.Parameters.AddWithValue("@ItemID", itemID);
						cm.Parameters.AddWithValue("@displayTabID", displayTabID);
						cm.Parameters.AddWithValue("@displayTabName", displayTabName);
						cm.Parameters.AddWithValue("@UserID", UserID);
						cm.Parameters.AddWithValue("@order", order);
						cm.ExecuteNonQuery();
					}
					catch (Exception ex)
					{
						//if (_MyLog.IsErrorEnabled) _MyLog.Error("ItemExt.AddDisplayTabsState", ex);
						throw new DbCslaException("ItemExt.AddDisplayTabsState", ex);
					}
				}
			}
		}
		public static DataTable GetDisplayTabs(string UserID) //, string displayTabID, string displayTabName)
														   //public static void DeactivateStateDisplayTabTmp(string UserID)
		{
			using (SqlConnection cn = Database.VEPROMS_SqlConnection)
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					try
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "GetDisplayTabdata";
						cm.CommandTimeout = Database.DefaultTimeout;
						cm.Parameters.AddWithValue("@UserID", UserID);
						//cm.ExecuteNonQuery();						
						SqlDataAdapter da = new SqlDataAdapter(cm);
						//da.Fill(dt);
						//cn.Close();
						//da.Dispose();
						//return dt; // fix

						SqlDataReader reader = cm.ExecuteReader();
						DataTable dt = new DataTable();
						dt.Load(reader);
						return dt;

					}
					catch (Exception ex)
					{
						//if (_MyLog.IsErrorEnabled) _MyLog.Error("ItemExt.DeactivateStateDisplayTabTmp", ex);
						throw new DbCslaException("ItemExt.DeactivateStateDisplayTabTmp", ex);
					}

				}
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		protected override void DataPortal_Update()
		{
			if (!IsDirty) return;	// If not dirty - nothing to do
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.DataPortal_Update", GetHashCode());
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					ApplicationContext.LocalContext["cn"] = cn;
					SQLUpdate();
					// removing of item only needed for local data portal
					if (ApplicationContext.ExecutionLocation == ApplicationContext.ExecutionLocations.Client)
						ApplicationContext.LocalContext.Remove("cn");
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.DataPortal_Update", ex);
				_ErrorMessage = ex.Message;
				if (!ex.Message.EndsWith("has been edited by another user.")) throw ex;
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		internal void SQLUpdate()
		{
			if (!IsDirty) return;	// If not dirty - nothing to do
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.SQLUpdate", GetHashCode());
			try
			{
				if (_MyContent != null) _MyContent.Update();
				SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
				if (base.IsDirty)
				{
					using (SqlCommand cm = cn.CreateCommand())
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandTimeout = Database.SQLTimeout;
						cm.CommandText = "updateItem";
						// All Fields including Calculated Fields
						cm.Parameters.AddWithValue("@ItemID", _ItemID);
						cm.Parameters.AddWithValue("@PreviousID", PreviousID);
						cm.Parameters.AddWithValue("@ContentID", ContentID);
						if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
						cm.Parameters.AddWithValue("@UserID", _UserID);
						cm.Parameters.AddWithValue("@LastChanged", _LastChanged);
						// Output Calculated Columns
						SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
						param_LastChanged.Direction = ParameterDirection.Output;
						cm.Parameters.Add(param_LastChanged);
						// CSLATODO: Define any additional output parameters
						cm.ExecuteNonQuery();
						// Save all values being returned from the Procedure
						_LastChanged = (byte[])cm.Parameters["@newLastChanged"].Value;
					}
				}
				MarkOld();
				// use the open connection to update child objects
				if (_ItemAnnotations != null) _ItemAnnotations.Update(this);
				if (_ItemDocVersions != null) _ItemDocVersions.Update(this);
				if (_NextItems != null) _NextItems.Update(this);
				if (_ItemParts != null) _ItemParts.Update(this);
				if (_ItemTransitions_RangeID != null) _ItemTransitions_RangeID.Update(this);
				if (_ItemTransitions_ToID != null) _ItemTransitions_ToID.Update(this);
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.SQLUpdate", ex);
				_ErrorMessage = ex.Message;
				if (!ex.Message.EndsWith("has been edited by another user.")) throw ex;
			}
		}
		internal void Update()
		{
			if (!this.IsDirty) return;
			if (base.IsDirty)
			{
				SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
				if (IsNew)
					_LastChanged = Item.Add(cn, ref _ItemID, _MyPrevious, _MyContent, _DTS, _UserID);
				else
					_LastChanged = Item.Update(cn, ref _ItemID, _PreviousID, _ContentID, _DTS, _UserID, ref _LastChanged);
				MarkOld();
			}
			if (_ItemAnnotations != null) _ItemAnnotations.Update(this);
			if (_ItemDocVersions != null) _ItemDocVersions.Update(this);
			if (_NextItems != null) _NextItems.Update(this);
			if (_ItemParts != null) _ItemParts.Update(this);
			if (_ItemTransitions_RangeID != null) _ItemTransitions_RangeID.Update(this);
			if (_ItemTransitions_ToID != null) _ItemTransitions_ToID.Update(this);
		}
		internal void DeleteSelf(Item item)
		{
			// if we're not dirty then don't update the database
			if (!this.IsDirty) return;
			// if we're new then don't update the database
			if (this.IsNew) return;
			SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
			Item.Remove(cn, _ItemID);
			MarkNew();
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		public static byte[] Update(SqlConnection cn, ref int itemID, int? previousID, int contentID, DateTime dts, string userID, ref byte[] lastChanged)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.Update", 0);
			try
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandTimeout = Database.SQLTimeout;
					cm.CommandText = "updateItem";
					// Input All Fields - Except Calculated Columns
					cm.Parameters.AddWithValue("@ItemID", itemID);
					cm.Parameters.AddWithValue("@PreviousID", previousID);
					cm.Parameters.AddWithValue("@ContentID", contentID);
					if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
					cm.Parameters.AddWithValue("@UserID", userID);
					cm.Parameters.AddWithValue("@LastChanged", lastChanged);
					// Output Calculated Columns
					SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
					param_LastChanged.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_LastChanged);
					// CSLATODO: Define any additional output parameters
					cm.ExecuteNonQuery();
					// Save all values being returned from the Procedure
					return (byte[])cm.Parameters["@newLastChanged"].Value;
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.Update", ex);
				throw new DbCslaException("Item.Update", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		protected override void DataPortal_DeleteSelf()
		{
			DataPortal_Delete(new PKCriteria(_ItemID));
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		private void DataPortal_Delete(PKCriteria criteria)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.DataPortal_Delete", GetHashCode());
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					using (SqlCommand cm = cn.CreateCommand())
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandTimeout = Database.SQLTimeout;
						cm.CommandText = "deleteItem";
						cm.Parameters.AddWithValue("@ItemID", criteria.ItemID);
						cm.ExecuteNonQuery();
					}
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.DataPortal_Delete", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Item.DataPortal_Delete", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		public static void Remove(SqlConnection cn, int itemID)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.Remove", 0);
			try
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandTimeout = Database.SQLTimeout;
					cm.CommandText = "deleteItem";
					// Input PK Fields
					cm.Parameters.AddWithValue("@ItemID", itemID);
					// CSLATODO: Define any additional output parameters
					cm.ExecuteNonQuery();
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.Remove", ex);
				throw new DbCslaException("Item.Remove", ex);
			}
		}
		#endregion
		#region Exists
		public static bool Exists(int itemID)
		{
			ExistsCommand result;
			try
			{
				result = DataPortal.Execute<ExistsCommand>(new ExistsCommand(itemID));
				return result.Exists;
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Item.Exists", ex);
			}
		}
		[Serializable()]
		private class ExistsCommand : CommandBase
		{
			private int _ItemID;
			private bool _exists;
			public bool Exists
			{
				get { return _exists; }
			}
			public ExistsCommand(int itemID)
			{
				_ItemID = itemID;
			}
			protected override void DataPortal_Execute()
			{
				if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Item.DataPortal_Execute", GetHashCode());
				try
				{
					using (SqlConnection cn = Database.VEPROMS_SqlConnection)
					{
						cn.Open();
						using (SqlCommand cm = cn.CreateCommand())
						{
							cm.CommandType = CommandType.StoredProcedure;
							cm.CommandTimeout = Database.SQLTimeout;
							cm.CommandText = "existsItem";
							cm.Parameters.AddWithValue("@ItemID", _ItemID);
							int count = (int)cm.ExecuteScalar();
							_exists = (count > 0);
						}
					}
				}
				catch (Exception ex)
				{
					if (_MyLog.IsErrorEnabled) _MyLog.Error("Item.DataPortal_Execute", ex);
					throw new DbCslaException("Item.DataPortal_Execute", ex);
				}
			}
		}
		#endregion
		// Standard Default Code
		#region extension
		ItemExtension _ItemExtension = new ItemExtension();
		[Serializable()]
		partial class ItemExtension : extensionBase
		{
		}
		[Serializable()]
		class extensionBase
		{
			// Default Values
			public virtual DateTime DefaultDTS
			{
				get { return DateTime.Now; }
			}
			public virtual string DefaultUserID
			{
				get { return Volian.Base.Library.VlnSettings.UserID; }
			}
			// Authorization Rules
			public virtual void AddAuthorizationRules(Csla.Security.AuthorizationRules rules)
			{
				// Needs to be overriden to add new authorization rules
			}
			// Instance Authorization Rules
			public virtual void AddInstanceAuthorizationRules(Csla.Security.AuthorizationRules rules)
			{
				// Needs to be overriden to add new authorization rules
			}
			// Validation Rules
			public virtual void AddValidationRules(Csla.Validation.ValidationRules rules)
			{
				// Needs to be overriden to add new validation rules
			}
			// InstanceValidation Rules
			public virtual void AddInstanceValidationRules(Csla.Validation.ValidationRules rules)
			{
				// Needs to be overriden to add new validation rules
			}
		}
		#endregion
	} // Class
	#region Converter
	internal class ItemConverter : ExpandableObjectConverter
	{
		public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destType)
		{
			if (destType == typeof(string) && value is Item)
			{
				// Return the ToString value
				return ((Item)value).ToString();
			}
			return base.ConvertTo(context, culture, value, destType);
		}
	}
	#endregion
} // Namespace


//// The following is a sample Extension File.  You can use it to create ItemExt.cs
//using System;
//using System.Collections.Generic;
//using System.Text;
//using Csla;

//namespace VEPROMS.CSLA.Library
//{
//  public partial class Item
//  {
//    partial class ItemExtension : extensionBase
//    {
//      // CSLATODO: Override automatic defaults
//      public virtual DateTime DefaultDTS
//      {
//        get { return DateTime.Now; }
//      }
//      public virtual string DefaultUserID
//      {
//        get { return Environment.UserName.ToUpper(); }
//      }
//      public new void AddAuthorizationRules(Csla.Security.AuthorizationRules rules)
//      {
//        //rules.AllowRead(Dbid, "<Role(s)>");
//      }
//      public new void AddInstanceAuthorizationRules(Csla.Security.AuthorizationRules rules)
//      {
//        //rules.AllowInstanceRead(Dbid, "<Role(s)>");
//      }
//      public new void AddValidationRules(Csla.Validation.ValidationRules rules)
//      {
//        rules.AddRule(
//          Csla.Validation.CommonRules.StringMaxLength,
//          new Csla.Validation.CommonRules.MaxLengthRuleArgs("Name", 100));
//      }
//      public new void AddInstanceValidationRules(Csla.Validation.ValidationRules rules)
//      {
//        rules.AddInstanceRule(/* Instance Validation Rule */);
//      }
//    }
//  }
//}