/// <summary>
 /// Update a record
 /// </summary>
 /// <param name="aUserName">Domain/User</param>
 /// <param name="aMachineName">Yeah</param>
 /// <param name="aEntryType">Kind of entry to update</param>
 /// <param name="aModificationDate">Entry time</param>
 /// <param name="aContent">XML to send</param>
 public static void Update(string aUserName, string aMachineName, EntryKind aEntryType, DateTime aModificationDate, string aContent)
 {
     SQLHistoryDataSetTableAdapters.HistoryTableAdapter TableAdapter = new SQLHistoryDataSetTableAdapters.HistoryTableAdapter();
     SQLHistoryDataSet.HistoryDataTable Table = TableAdapter.GetDataBy(aUserName, aMachineName, aEntryType.ToString(), aModificationDate);
     HistoryRow Row = null;
     if (Table.Count == 0)
         Row = Table.AddHistoryRow(aUserName, aMachineName, aEntryType.ToString(), aModificationDate, aContent);
     else
         Row = ((HistoryRow)Table.Rows[0]);
     Row.XmlContent = aContent;
     TableAdapter.Update(Table);
     //Console.WriteLine(Row.EntryType + ":" + Row.XmlContent);
 }