System.Data.XmlTreeGen.AddColumnProperties C# (CSharp) Method

        internal void AddColumnProperties(DataColumn col, XmlElement root)
        {
            if (col.DataType != typeof(string))
            {
                string dt = XmlDataTypeName(col.DataType);
                if ((col.IsSqlType && ((dt.Length == 0) || col.ImplementsINullable)) || (typeof(SqlXml) == col.DataType) || col.DataType == typeof(DateTimeOffset) || col.DataType == typeof(System.Numerics.BigInteger))
                { // no need to check if it is Sql typee if it already implements INullable,
                    root.SetAttribute(Keywords.MSD_DATATYPE, Keywords.MSDNS, col.DataType.FullName);
                }
                else if ((dt.Length == 0) || col.ImplementsINullable || ((dt == Keywords.XSD_ANYTYPE) && (col.XmlDataType != Keywords.XSD_ANYTYPE)))
                {
                    // in Whidbey, XmlDataTypeName function changed to return "anyType" for typeof(Object)
                    // should still always hit this code path for all non-built in types
                    // to handle version qualified typeof(Object) and other CDT objects correctly

                    // we must write the output exactly the same way as we read it
                    SetMSDataAttribute(root, col.DataType);
                }
            }

            if (col.ReadOnly)
                root.SetAttribute("ReadOnly", Keywords.MSDNS, Keywords.TRUE);

            if (col.Expression.Length != 0)
                root.SetAttribute("Expression", Keywords.MSDNS, col.Expression);

            if (col.AutoIncrement)
            {
                root.SetAttribute("AutoIncrement", Keywords.MSDNS, Keywords.TRUE);
            }

            if (col.AutoIncrementSeed != 0)
                root.SetAttribute("AutoIncrementSeed", Keywords.MSDNS, col.AutoIncrementSeed.ToString(CultureInfo.InvariantCulture));

            if (col.AutoIncrementStep != 1)
                root.SetAttribute("AutoIncrementStep", Keywords.MSDNS, col.AutoIncrementStep.ToString(CultureInfo.InvariantCulture));

            if (col.Caption != col.ColumnName)
                root.SetAttribute("Caption", Keywords.MSDNS, col.Caption);

            if (col.Prefix.Length != 0)
                root.SetAttribute("Prefix", Keywords.MSDNS, col.Prefix);

            if (col.DataType == typeof(DateTime) && col.DateTimeMode != DataSetDateTime.UnspecifiedLocal)
            {
                root.SetAttribute("DateTimeMode", Keywords.MSDNS, col.DateTimeMode.ToString());
            }
        }