Added code to support refreshing display based on changes made by another user

PROMS/VEPROMS.CSLA.Library/Extension/ContentExt.cs

@@ -554,6 +554,10 @@ namespace VEPROMS.CSLA.Library
 	}
 	public partial class ContentInfo
 	{
+		public static bool IsInCache(int contentID)
+		{
+			return _CacheByPrimaryKey.ContainsKey(contentID.ToString());
+		}
 		public static event StaticContentInfoEvent StaticContentInfoChange;
 		private static void OnStaticContentInfoChange(object sender, StaticContentInfoEventArgs args)
 		{
@@ -979,5 +983,66 @@ namespace VEPROMS.CSLA.Library
 			}
 			this.RaiseListChangedEvents = true;
 		}
+		public static ContentInfoList GetChangedList(byte[] lastChanged)
+		{
+			try
+			{
+				ContentInfoList tmp = DataPortal.Fetch<ContentInfoList>(new ChangeListCriteria(lastChanged));
+//				ContentInfo.AddList(tmp);
+				tmp.AddEvents();
+				return tmp;
+			}
+			catch (Exception ex)
+			{
+				throw new DbCslaException("Error on ContentInfoList.GetChangedList", ex);
+			}
+		}
+		[Serializable()]
+		private class ChangeListCriteria
+		{
+			private byte[] _LastChanged;
+			public byte[] LastChanged
+			{
+				get { return _LastChanged; }
+				set { _LastChanged = value; }
+			}
+			public ChangeListCriteria(byte[] lastChanged)
+			{
+				_LastChanged = lastChanged;
+			}
+		}
+		private void DataPortal_Fetch(ChangeListCriteria criteria)
+		{
+			this.RaiseListChangedEvents = false;
+			try
+			{
+				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
+				{
+					using (SqlCommand cm = cn.CreateCommand())
+					{
+						cm.CommandType = CommandType.StoredProcedure;
+						cm.CommandText = "vesp_ListContentsAfterLastChanged";
+						cm.Parameters.AddWithValue("@LastChanged", criteria.LastChanged);
+						cm.CommandTimeout = Database.DefaultTimeout;
+						using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
+						{
+							IsReadOnly = false;
+							while (dr.Read())
+							{
+								ContentInfo contentInfo = new ContentInfo(dr);
+								this.Add(contentInfo);
+							}
+							IsReadOnly = true;
+						}
+					}
+				}
+			}
+			catch (Exception ex)
+			{
+				Database.LogException("ContentInfoList.DataPortal_Fetch", ex);
+				throw new DbCslaException("ContentInfoList.DataPortal_Fetch", ex);
+			}
+			this.RaiseListChangedEvents = true;
+		}
 	}
 }