System.Xml.XmlDataDocument.GetTextOnlyColumn C# (CSharp) Méthode

        private DataColumn GetTextOnlyColumn(DataRow row)
        {
#if DEBUG
            {
                // Make sure there is at most only one text column, and the text column (if present) is the one reported by row.Table.XmlText
                DataColumnCollection columns = row.Table.Columns;
                int cCols = columns.Count;
                int cTextCols = 0;
                for (int iCol = 0; iCol < cCols; iCol++)
                {
                    DataColumn c = columns[iCol];
                    if (IsTextOnly(c))
                    {
                        Debug.Assert(c == row.Table.XmlText);
                        ++cTextCols;
                    }
                }
                Debug.Assert(cTextCols == 0 || cTextCols == 1);
                if (cTextCols == 0)
                    Debug.Assert(row.Table.XmlText == null);
            }
#endif
            return row.Table.XmlText;
        }