System.Data.DataRow.HasKeyChanged C# (CSharp) Метод

        internal bool HasKeyChanged(DataKey key, DataRowVersion version1, DataRowVersion version2)
        {
            if (!HasVersion(version1) || !HasVersion(version2))
            {
                return true;
            }

            return !key.RecordsEqual(GetRecordFromVersion(version1), GetRecordFromVersion(version2));
        }

 internal void CheckCascade(DataRow row, DataRowAction action)
 {
     if (!row.inCascade)
     {
         row.inCascade = true;
         try
         {
             if (action == DataRowAction.Change)
             {
                 if (row.HasKeyChanged(this.parentKey))
                 {
                     this.CascadeUpdate(row);
                 }
             }
             else if (action == DataRowAction.Delete)
             {
                 this.CascadeDelete(row);
             }
             else if (action == DataRowAction.Commit)
             {
                 this.CascadeCommit(row);
             }
             else if (action == DataRowAction.Rollback)
             {
                 this.CascadeRollback(row);
             }
         }
         finally
         {
             row.inCascade = false;
         }
     }
 }