System.Data.XMLDiffLoader.ProcessErrors C# (CSharp) Метод

        internal void ProcessErrors(ArrayList dt, XmlReader ssync)
        {
            DataTable table;

            int iSsyncDepth = ssync.Depth;
            ssync.Read(); // pass the before node.

            while (iSsyncDepth < ssync.Depth)
            {
                table = GetTable(XmlConvert.DecodeName(ssync.LocalName), ssync.NamespaceURI);
                if (table == null)
                    throw ExceptionBuilder.DiffgramMissingSQL();

                string diffId = ssync.GetAttribute(Keywords.DIFFID, Keywords.DFFNS);

                DataRow row = (DataRow)table.RowDiffId[diffId];
                if (row == null)
                {
                    for (int i = 0; i < dt.Count; i++)
                    {
                        row = (DataRow)((DataTable)dt[i]).RowDiffId[diffId];
                        if (row != null)
                        {
                            table = row.Table;
                            break;
                        }
                    }
                }
                string rowError = ssync.GetAttribute(Keywords.MSD_ERROR, Keywords.DFFNS);
                if (rowError != null)
                    row.RowError = rowError;
                int iRowDepth = ssync.Depth;
                ssync.Read(); // we may be inside a column

                while (iRowDepth < ssync.Depth)
                {
                    if (XmlNodeType.Element == ssync.NodeType)
                    {
                        DataColumn col = table.Columns[XmlConvert.DecodeName(ssync.LocalName), ssync.NamespaceURI];
                        //if (col == null)
                        // throw exception here
                        string colError = ssync.GetAttribute(Keywords.MSD_ERROR, Keywords.DFFNS);
                        row.SetColumnError(col, colError);
                    }
                    ssync.Read();
                }
                while ((ssync.NodeType == XmlNodeType.EndElement) && (iSsyncDepth < ssync.Depth))
                    ssync.Read();
            }

            return;
        }
        private DataTable GetTable(string tableName, string ns)