diff --git a/PROMS/VEPROMS.CSLA.Library/Extension/DROUsagesExt.cs b/PROMS/VEPROMS.CSLA.Library/Extension/DROUsagesExt.cs
new file mode 100644
index 00000000..c06bc0d0
--- /dev/null
+++ b/PROMS/VEPROMS.CSLA.Library/Extension/DROUsagesExt.cs
@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Data;
+using System.Data.SqlClient;
+using Csla;
+using Csla.Data;
+
+namespace VEPROMS.CSLA.Library
+{
+	public partial class DROUsageInfoList
+	{
+		[Serializable()]
+		private class AffectedDROUsagesCriteria
+		{
+			public AffectedDROUsagesCriteria(int roDbID, string roid, string roDesc, string command, string userID)
+			{
+				_RODbID = roDbID;
+				_ROID = roid;
+				_RODesc = roDesc;
+				_Command = command;
+				_UserID = userID;
+			}
+			private int _RODbID;
+
+			public int RODbID
+			{
+				get { return _RODbID; }
+				set { _RODbID = value; }
+			}
+			private string _ROID;
+
+			public string ROID
+			{
+				get { return _ROID; }
+				set { _ROID = value; }
+			}
+			private string _RODesc;
+
+			public string RODesc
+			{
+				get { return _RODesc; }
+				set { _RODesc = value; }
+			}
+			private string _Command;
+
+			public string Command
+			{
+				get { return _Command; }
+				set { _Command = value; }
+			}
+			private string _UserID;
+
+			public string UserID
+			{
+				get { return _UserID; }
+				set { _UserID = value; }
+			}
+		}
+		public static DROUsageInfoList GetAffected(int roDbID, string roid, string roDesc, string command)
+		{
+			try
+			{
+				DROUsageInfoList tmp = DataPortal.Fetch<DROUsageInfoList>(new AffectedDROUsagesCriteria(roDbID, roid, roDesc, command, Volian.Base.Library.VlnSettings.UserID));
+				DROUsageInfo.AddList(tmp);
+				tmp.AddEvents();
+				return tmp;
+			}
+			catch (Exception ex)
+			{
+				throw new DbCslaException("Error on DROUsageInfoList.GetAffected", ex);
+			}
+		}
+		private void DataPortal_Fetch(AffectedDROUsagesCriteria criteria)
+		{
+			this.RaiseListChangedEvents = false;
+			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] DROUsageInfoList.DataPortal_FetchAffected", GetHashCode());
+			try
+			{
+				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
+				{
+					using (SqlCommand cm = cn.CreateCommand())
+					{
+						cm.CommandType = CommandType.StoredProcedure;
+						cm.CommandText = "getAffectedDRoUsages";
+						cm.Parameters.AddWithValue("@RODbID", criteria.RODbID);
+						cm.Parameters.AddWithValue("@ROID", criteria.ROID);
+						cm.Parameters.AddWithValue("@RODesc", criteria.RODesc);
+						cm.Parameters.AddWithValue("@Command", criteria.Command);
+						cm.Parameters.AddWithValue("@UserID", criteria.UserID);
+
+						using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
+						{
+							IsReadOnly = false;
+							while (dr.Read())
+								this.Add(new DROUsageInfo(dr));
+							IsReadOnly = true;
+						}
+					}
+				}
+			}
+			catch (Exception ex)
+			{
+				if (_MyLog.IsErrorEnabled) _MyLog.Error("DROUsageInfoList.DataPortal_FetchAffected", ex);
+				throw new DbCslaException("DROUsageInfoList.DataPortal_Fetch", ex);
+			}
+			this.RaiseListChangedEvents = true;
+		}
+	}
+}