190/// <param name="dbType"><see cref="DbType"/> of the items in the column.</param> 192public Column(string name, DbType dbType, int index) 201/// <param name="dbType"><see cref="DbType"/> of the items in the column.</param> 204public Column(string name, DbType dbType, int minIndex, int maxIndex) 213/// <param name="dbType"><see cref="DbType"/> of the items in the column.</param> 216public Column(string name, DbType dbType, Range[] source, KeyCount keyCount = null) 234/// <see cref="DbType"/> of the items in the column. 237public DbType Type = DbType.Single; 499ch.CheckUserArg(Enum.IsDefined(typeof(DbType), col.Type), nameof(Column.Type), "Bad item type"); 683private static KeyDataViewType ConstructKeyType(DbType dbType, KeyCount keyCount)

13/// Maps a <see cref="DbType"/> to the associated .Net representation type. 15public static Type ToType(this DbType dbType) 19case DbType.AnsiString: 20case DbType.AnsiStringFixedLength: 21case DbType.String: 22case DbType.StringFixedLength: 24case DbType.Binary: 26case DbType.Boolean: 28case DbType.Byte: 30case DbType.Date: 31case DbType.DateTime: 32case DbType.DateTime2: 34case DbType.DateTimeOffset: 36case DbType.Decimal: 38case DbType.Double: 40case DbType.Guid: 42case DbType.Int16: 44case DbType.Int32: 46case DbType.Int64: 48case DbType.Object: 50case DbType.SByte: 52case DbType.Single: 54case DbType.Time: 56case DbType.UInt16: 58case DbType.UInt32: 60case DbType.UInt64: 62case DbType.Currency: 63case DbType.VarNumeric: 64case DbType.Xml: 70/// <summary>Maps a <see cref="InternalDataKind"/> to the associated <see cref="DbType"/>.</summary> 71public static DbType ToDbType(this InternalDataKind dataKind) 77return DbType.SByte; 82return DbType.Byte; 87return DbType.Int16; 92return DbType.UInt16; 97return DbType.Int32; 102return DbType.UInt32; 107return DbType.Int64; 112return DbType.UInt64; 117return DbType.Single; 122return DbType.Double; 127return DbType.String; 132return DbType.Boolean; 137return DbType.DateTime;

56new DatabaseLoader.Column() { Name = "Label", Type = DbType.Int32 }, 57new DatabaseLoader.Column() { Name = "SepalLength", Type = DbType.Single }, 58new DatabaseLoader.Column() { Name = "SepalWidth", Type = DbType.Single }, 59new DatabaseLoader.Column() { Name = "PetalLength", Type = DbType.Single }, 60new DatabaseLoader.Column() { Name = "PetalWidth", Type = DbType.Single } 258var loader = mlContext.Data.CreateDatabaseLoader(new DatabaseLoader.Column("datetime", DbType.DateTime, 0));

523[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.DbType))]

92[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.DbType))]

1153p.DbType = DbType.Int32;

775Debug.Assert(DbType.Int32 == parameter.DbType, "unexpected DbType");

16public abstract DbType DbType { get; set; }

10DbType DbType { get; set; }

372internal static ArgumentException DbTypeNotSupported(System.Data.DbType type, Type enumtype)

766private static readonly TypeMap s_bigInt = new TypeMap(OdbcType.BigInt, DbType.Int64, typeof(long), ODBC32.SQL_TYPE.BIGINT, ODBC32.SQL_C.SBIGINT, ODBC32.SQL_C.SBIGINT, 8, 20, true); 767private static readonly TypeMap s_binary = new TypeMap(OdbcType.Binary, DbType.Binary, typeof(byte[]), ODBC32.SQL_TYPE.BINARY, ODBC32.SQL_C.BINARY, ODBC32.SQL_C.BINARY, -1, -1, false); 768private static readonly TypeMap s_bit = new TypeMap(OdbcType.Bit, DbType.Boolean, typeof(bool), ODBC32.SQL_TYPE.BIT, ODBC32.SQL_C.BIT, ODBC32.SQL_C.BIT, 1, 1, false); 769internal static readonly TypeMap _Char = new TypeMap(OdbcType.Char, DbType.AnsiStringFixedLength, typeof(string), ODBC32.SQL_TYPE.CHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.CHAR, -1, -1, false); 770private static readonly TypeMap s_dateTime = new TypeMap(OdbcType.DateTime, DbType.DateTime, typeof(DateTime), ODBC32.SQL_TYPE.TYPE_TIMESTAMP, ODBC32.SQL_C.TYPE_TIMESTAMP, ODBC32.SQL_C.TYPE_TIMESTAMP, 16, 23, false); 771private static readonly TypeMap s_date = new TypeMap(OdbcType.Date, DbType.Date, typeof(DateTime), ODBC32.SQL_TYPE.TYPE_DATE, ODBC32.SQL_C.TYPE_DATE, ODBC32.SQL_C.TYPE_DATE, 6, 10, false); 772private static readonly TypeMap s_time = new TypeMap(OdbcType.Time, DbType.Time, typeof(TimeSpan), ODBC32.SQL_TYPE.TYPE_TIME, ODBC32.SQL_C.TYPE_TIME, ODBC32.SQL_C.TYPE_TIME, 6, 12, false); 773private static readonly TypeMap s_decimal = new TypeMap(OdbcType.Decimal, DbType.Decimal, typeof(decimal), ODBC32.SQL_TYPE.DECIMAL, ODBC32.SQL_C.NUMERIC, ODBC32.SQL_C.NUMERIC, 19, ADP.DecimalMaxPrecision28, false); 775private static readonly TypeMap s_double = new TypeMap(OdbcType.Double, DbType.Double, typeof(double), ODBC32.SQL_TYPE.DOUBLE, ODBC32.SQL_C.DOUBLE, ODBC32.SQL_C.DOUBLE, 8, 15, false); 776internal static readonly TypeMap _Image = new TypeMap(OdbcType.Image, DbType.Binary, typeof(byte[]), ODBC32.SQL_TYPE.LONGVARBINARY, ODBC32.SQL_C.BINARY, ODBC32.SQL_C.BINARY, -1, -1, false); 777private static readonly TypeMap s_int = new TypeMap(OdbcType.Int, DbType.Int32, typeof(int), ODBC32.SQL_TYPE.INTEGER, ODBC32.SQL_C.SLONG, ODBC32.SQL_C.SLONG, 4, 10, true); 778private static readonly TypeMap s_NChar = new TypeMap(OdbcType.NChar, DbType.StringFixedLength, typeof(string), ODBC32.SQL_TYPE.WCHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.WCHAR, -1, -1, false); 779internal static readonly TypeMap _NText = new TypeMap(OdbcType.NText, DbType.String, typeof(string), ODBC32.SQL_TYPE.WLONGVARCHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.WCHAR, -1, -1, false); 780private static readonly TypeMap s_numeric = new TypeMap(OdbcType.Numeric, DbType.Decimal, typeof(decimal), ODBC32.SQL_TYPE.NUMERIC, ODBC32.SQL_C.NUMERIC, ODBC32.SQL_C.NUMERIC, 19, ADP.DecimalMaxPrecision28, false); 781internal static readonly TypeMap _NVarChar = new TypeMap(OdbcType.NVarChar, DbType.String, typeof(string), ODBC32.SQL_TYPE.WVARCHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.WCHAR, -1, -1, false); 782private static readonly TypeMap s_real = new TypeMap(OdbcType.Real, DbType.Single, typeof(float), ODBC32.SQL_TYPE.REAL, ODBC32.SQL_C.REAL, ODBC32.SQL_C.REAL, 4, 7, false); 783private static readonly TypeMap s_uniqueId = new TypeMap(OdbcType.UniqueIdentifier, DbType.Guid, typeof(Guid), ODBC32.SQL_TYPE.GUID, ODBC32.SQL_C.GUID, ODBC32.SQL_C.GUID, 16, 36, false); 784private static readonly TypeMap s_smallDT = new TypeMap(OdbcType.SmallDateTime, DbType.DateTime, typeof(DateTime), ODBC32.SQL_TYPE.TYPE_TIMESTAMP, ODBC32.SQL_C.TYPE_TIMESTAMP, ODBC32.SQL_C.TYPE_TIMESTAMP, 16, 23, false); 785private static readonly TypeMap s_smallInt = new TypeMap(OdbcType.SmallInt, DbType.Int16, typeof(short), ODBC32.SQL_TYPE.SMALLINT, ODBC32.SQL_C.SSHORT, ODBC32.SQL_C.SSHORT, 2, 5, true); 786internal static readonly TypeMap _Text = new TypeMap(OdbcType.Text, DbType.AnsiString, typeof(string), ODBC32.SQL_TYPE.LONGVARCHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.CHAR, -1, -1, false); 787private static readonly TypeMap s_timestamp = new TypeMap(OdbcType.Timestamp, DbType.Binary, typeof(byte[]), ODBC32.SQL_TYPE.BINARY, ODBC32.SQL_C.BINARY, ODBC32.SQL_C.BINARY, -1, -1, false); 788private static readonly TypeMap s_tinyInt = new TypeMap(OdbcType.TinyInt, DbType.Byte, typeof(byte), ODBC32.SQL_TYPE.TINYINT, ODBC32.SQL_C.UTINYINT, ODBC32.SQL_C.UTINYINT, 1, 3, true); 789private static readonly TypeMap s_varBinary = new TypeMap(OdbcType.VarBinary, DbType.Binary, typeof(byte[]), ODBC32.SQL_TYPE.VARBINARY, ODBC32.SQL_C.BINARY, ODBC32.SQL_C.BINARY, -1, -1, false); 790internal static readonly TypeMap _VarChar = new TypeMap(OdbcType.VarChar, DbType.AnsiString, typeof(string), ODBC32.SQL_TYPE.VARCHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.CHAR, -1, -1, false); 791private static readonly TypeMap s_variant = new TypeMap(OdbcType.Binary, DbType.Binary, typeof(object), ODBC32.SQL_TYPE.SS_VARIANT, ODBC32.SQL_C.BINARY, ODBC32.SQL_C.BINARY, -1, -1, false); 792private static readonly TypeMap s_UDT = new TypeMap(OdbcType.Binary, DbType.Binary, typeof(object), ODBC32.SQL_TYPE.SS_UDT, ODBC32.SQL_C.BINARY, ODBC32.SQL_C.BINARY, -1, -1, false); 793private static readonly TypeMap s_XML = new TypeMap(OdbcType.Text, DbType.AnsiString, typeof(string), ODBC32.SQL_TYPE.LONGVARCHAR, ODBC32.SQL_C.WCHAR, ODBC32.SQL_C.CHAR, -1, -1, false); 796internal readonly DbType _dbType; 808private TypeMap(OdbcType odbcType, DbType dbType, Type type, ODBC32.SQL_TYPE sql_type, ODBC32.SQL_C sql_c, ODBC32.SQL_C param_sql_c, int bsize, int csize, bool signType) 853internal static TypeMap FromDbType(DbType dbType) 857case DbType.AnsiString: return _VarChar; 858case DbType.AnsiStringFixedLength: return _Char; 859case DbType.Binary: return s_varBinary; 860case DbType.Byte: return s_tinyInt; 861case DbType.Boolean: return s_bit; 862case DbType.Currency: return s_decimal; 864case DbType.Date: return s_date; 865case DbType.Time: return s_time; 866case DbType.DateTime: return s_dateTime; 867case DbType.Decimal: return s_decimal; 868case DbType.Double: return s_double; 869case DbType.Guid: return s_uniqueId; 870case DbType.Int16: return s_smallInt; 871case DbType.Int32: return s_int; 872case DbType.Int64: return s_bigInt; 873case DbType.Single: return s_real; 874case DbType.String: return _NVarChar; 875case DbType.StringFixedLength: return s_NChar; 876case DbType.Object: 877case DbType.SByte: 878case DbType.UInt16: 879case DbType.UInt32: 880case DbType.UInt64: 881case DbType.VarNumeric: 986DbType.Int64 => s_decimal, // upgrade to decimal 987DbType.Int32 => s_bigInt, // upgrade to 64 bit 988DbType.Int16 => s_int, // upgrade to 32 bit 996DbType.Byte => s_smallInt, // upgrade to 16 bit

149public override System.Data.DbType DbType

130private static readonly NativeDBType D_Binary = new NativeDBType(0xff, -1, true, false, OleDbType.Binary, NativeDBType.BYTES, S_BINARY, typeof(byte[]), NativeDBType.BYTES, DbType.Binary); // 0 131private static readonly NativeDBType D_Boolean = new NativeDBType(0xff, 2, true, false, OleDbType.Boolean, NativeDBType.BOOL, S_BOOL, typeof(bool), NativeDBType.BOOL, DbType.Boolean); // 1 - integer2 (variant_bool) 132private static readonly NativeDBType D_BSTR = new NativeDBType(0xff, IntPtr.Size, false, false, OleDbType.BSTR, NativeDBType.BSTR, S_BSTR, typeof(string), NativeDBType.BSTR, DbType.String); // 2 - integer4 (pointer) 133private static readonly NativeDBType D_Char = new NativeDBType(0xff, -1, true, false, OleDbType.Char, NativeDBType.STR, S_CHAR, typeof(string), NativeDBType.WSTR/*STR*/, DbType.AnsiStringFixedLength); // 3 - (ansi pointer) 134private static readonly NativeDBType D_Currency = new NativeDBType(19, 8, true, false, OleDbType.Currency, NativeDBType.CY, S_CY, typeof(decimal), NativeDBType.CY, DbType.Currency); // 4 - integer8 135private static readonly NativeDBType D_Date = new NativeDBType(0xff, 8, true, false, OleDbType.Date, NativeDBType.DATE, S_DATE, typeof(System.DateTime), NativeDBType.DATE, DbType.DateTime); // 5 - double 136private static readonly NativeDBType D_DBDate = new NativeDBType(0xff, 6, true, false, OleDbType.DBDate, NativeDBType.DBDATE, S_DBDATE, typeof(System.DateTime), NativeDBType.DBDATE, DbType.Date); // 6 - (tagDBDate) 137private static readonly NativeDBType D_DBTime = new NativeDBType(0xff, 6, true, false, OleDbType.DBTime, NativeDBType.DBTIME, S_DBTIME, typeof(System.TimeSpan), NativeDBType.DBTIME, DbType.Time); // 7 - (tagDBTime) 138private static readonly NativeDBType D_DBTimeStamp = new NativeDBType(0xff, 16, true, false, OleDbType.DBTimeStamp, NativeDBType.DBTIMESTAMP, S_DBTIMESTAMP, typeof(System.DateTime), NativeDBType.DBTIMESTAMP, DbType.DateTime); // 8 - (tagDBTIMESTAMP) 139private static readonly NativeDBType D_Decimal = new NativeDBType(28, 16, true, false, OleDbType.Decimal, NativeDBType.DECIMAL, S_DECIMAL, typeof(decimal), NativeDBType.DECIMAL, DbType.Decimal); // 9 - (tagDec) 140private static readonly NativeDBType D_Error = new NativeDBType(0xff, 4, true, false, OleDbType.Error, NativeDBType.ERROR, S_ERROR, typeof(int), NativeDBType.ERROR, DbType.Int32); // 10 - integer4 141private static readonly NativeDBType D_Filetime = new NativeDBType(0xff, 8, true, false, OleDbType.Filetime, NativeDBType.FILETIME, S_FILETIME, typeof(System.DateTime), NativeDBType.FILETIME, DbType.DateTime); // 11 - integer8 142private static readonly NativeDBType D_Guid = new NativeDBType(0xff, 16, true, false, OleDbType.Guid, NativeDBType.GUID, S_GUID, typeof(System.Guid), NativeDBType.GUID, DbType.Guid); // 12 - ubyte[16] 143private static readonly NativeDBType D_TinyInt = new NativeDBType(3, 1, true, false, OleDbType.TinyInt, NativeDBType.I1, S_I1, typeof(short), NativeDBType.I1, DbType.SByte); // 13 - integer1 144private static readonly NativeDBType D_SmallInt = new NativeDBType(5, 2, true, false, OleDbType.SmallInt, NativeDBType.I2, S_I2, typeof(short), NativeDBType.I2, DbType.Int16); // 14 - integer2 145private static readonly NativeDBType D_Integer = new NativeDBType(10, 4, true, false, OleDbType.Integer, NativeDBType.I4, S_I4, typeof(int), NativeDBType.I4, DbType.Int32); // 15 - integer4 146private static readonly NativeDBType D_BigInt = new NativeDBType(19, 8, true, false, OleDbType.BigInt, NativeDBType.I8, S_I8, typeof(long), NativeDBType.I8, DbType.Int64); // 16 - integer8 147private static readonly NativeDBType D_IDispatch = new NativeDBType(0xff, IntPtr.Size, true, false, OleDbType.IDispatch, NativeDBType.IDISPATCH, S_IDISPATCH, typeof(object), NativeDBType.IDISPATCH, DbType.Object); // 17 - integer4 (pointer) 148private static readonly NativeDBType D_IUnknown = new NativeDBType(0xff, IntPtr.Size, true, false, OleDbType.IUnknown, NativeDBType.IUNKNOWN, S_IUNKNOWN, typeof(object), NativeDBType.IUNKNOWN, DbType.Object); // 18 - integer4 (pointer) 149private static readonly NativeDBType D_LongVarBinary = new NativeDBType(0xff, -1, false, true, OleDbType.LongVarBinary, NativeDBType.BYTES, S_LONGVARBINARY, typeof(byte[]), NativeDBType.BYTES, DbType.Binary); // 19 150private static readonly NativeDBType D_LongVarChar = new NativeDBType(0xff, -1, false, true, OleDbType.LongVarChar, NativeDBType.STR, S_LONGVARCHAR, typeof(string), NativeDBType.WSTR/*STR*/, DbType.AnsiString); // 20 - (ansi pointer) 151private static readonly NativeDBType D_Numeric = new NativeDBType(28, 19, true, false, OleDbType.Numeric, NativeDBType.NUMERIC, S_NUMERIC, typeof(decimal), NativeDBType.NUMERIC, DbType.Decimal); // 21 - (tagDB_Numeric) 152private static readonly unsafe NativeDBType D_PropVariant = new NativeDBType(0xff, sizeof(ComVariant), true, false, OleDbType.PropVariant, NativeDBType.PROPVARIANT, S_PROPVARIANT, typeof(object), NativeDBType.VARIANT, DbType.Object); // 22 153private static readonly NativeDBType D_Single = new NativeDBType(7, 4, true, false, OleDbType.Single, NativeDBType.R4, S_R4, typeof(float), NativeDBType.R4, DbType.Single); // 23 - single 154private static readonly NativeDBType D_Double = new NativeDBType(15, 8, true, false, OleDbType.Double, NativeDBType.R8, S_R8, typeof(double), NativeDBType.R8, DbType.Double); // 24 - double 155private static readonly NativeDBType D_UnsignedTinyInt = new NativeDBType(3, 1, true, false, OleDbType.UnsignedTinyInt, NativeDBType.UI1, S_UI1, typeof(byte), NativeDBType.UI1, DbType.Byte); // 25 - byte7 156private static readonly NativeDBType D_UnsignedSmallInt = new NativeDBType(5, 2, true, false, OleDbType.UnsignedSmallInt, NativeDBType.UI2, S_UI2, typeof(int), NativeDBType.UI2, DbType.UInt16); // 26 - unsigned integer2 157private static readonly NativeDBType D_UnsignedInt = new NativeDBType(10, 4, true, false, OleDbType.UnsignedInt, NativeDBType.UI4, S_UI4, typeof(long), NativeDBType.UI4, DbType.UInt32); // 27 - unsigned integer4 158private static readonly NativeDBType D_UnsignedBigInt = new NativeDBType(20, 8, true, false, OleDbType.UnsignedBigInt, NativeDBType.UI8, S_UI8, typeof(decimal), NativeDBType.UI8, DbType.UInt64); // 28 - unsigned integer8 159private static readonly NativeDBType D_VarBinary = new NativeDBType(0xff, -1, false, false, OleDbType.VarBinary, NativeDBType.BYTES, S_VARBINARY, typeof(byte[]), NativeDBType.BYTES, DbType.Binary); // 29 160private static readonly NativeDBType D_VarChar = new NativeDBType(0xff, -1, false, false, OleDbType.VarChar, NativeDBType.STR, S_VARCHAR, typeof(string), NativeDBType.WSTR/*STR*/, DbType.AnsiString); // 30 - (ansi pointer) 161private static readonly NativeDBType D_Variant = new NativeDBType(0xff, ODB.SizeOf_Variant, true, false, OleDbType.Variant, NativeDBType.VARIANT, S_VARIANT, typeof(object), NativeDBType.VARIANT, DbType.Object); // 31 - ubyte[16] (variant) 162private static readonly NativeDBType D_VarNumeric = new NativeDBType(255, 16, true, false, OleDbType.VarNumeric, NativeDBType.VARNUMERIC, S_VARNUMERIC, typeof(decimal), NativeDBType.DECIMAL, DbType.VarNumeric); // 32 - (unicode pointer) 163private static readonly NativeDBType D_WChar = new NativeDBType(0xff, -1, true, false, OleDbType.WChar, NativeDBType.WSTR, S_WCHAR, typeof(string), NativeDBType.WSTR, DbType.StringFixedLength); // 33 - (unicode pointer) 164private static readonly NativeDBType D_VarWChar = new NativeDBType(0xff, -1, false, false, OleDbType.VarWChar, NativeDBType.WSTR, S_WVARCHAR, typeof(string), NativeDBType.WSTR, DbType.String); // 34 - (unicode pointer) 165private static readonly NativeDBType D_LongVarWChar = new NativeDBType(0xff, -1, false, true, OleDbType.LongVarWChar, NativeDBType.WSTR, S_WLONGVARCHAR, typeof(string), NativeDBType.WSTR, DbType.String); // 35 - (unicode pointer) 166private static readonly NativeDBType D_Chapter = new NativeDBType(0xff, IntPtr.Size, false, false, OleDbType.Empty, NativeDBType.HCHAPTER, S_UDT, typeof(IDataReader), NativeDBType.HCHAPTER, DbType.Object); // 36 - (hierarchical chaper) 167private static readonly NativeDBType D_Empty = new NativeDBType(0xff, 0, false, false, OleDbType.Empty, NativeDBType.EMPTY, "", null, NativeDBType.EMPTY, DbType.Object); // 37 - invalid param default 168private static readonly NativeDBType D_Xml = new NativeDBType(0xff, -1, false, false, OleDbType.VarWChar, NativeDBType.XML, S_XML, typeof(string), NativeDBType.WSTR, DbType.String); // 38 - (unicode pointer) 169private static readonly NativeDBType D_Udt = new NativeDBType(0xff, -1, false, false, OleDbType.VarBinary, NativeDBType.UDT, S_BINARY, typeof(byte[]), NativeDBType.BYTES, DbType.Binary); // 39 - (unicode pointer) 178internal readonly DbType enumDbType; // enum System.Data.DbType 192private NativeDBType(byte maxpre, int fixlen, bool isfixed, bool islong, OleDbType enumOleDbType, short dbType, string dbstring, Type? dataType, short wType, DbType enumDbType) 313internal static NativeDBType FromDbType(DbType dbType) => 316DbType.AnsiString => D_VarChar, 317DbType.AnsiStringFixedLength => D_Char, 318DbType.Binary => D_VarBinary, 319DbType.Byte => D_UnsignedTinyInt, 320DbType.Boolean => D_Boolean, 321DbType.Currency => D_Currency, 322DbType.Date => D_DBDate, 323DbType.DateTime => D_DBTimeStamp, 324DbType.Decimal => D_Decimal, 325DbType.Double => D_Double, 326DbType.Guid => D_Guid, 327DbType.Int16 => D_SmallInt, 328DbType.Int32 => D_Integer, 329DbType.Int64 => D_BigInt, 330DbType.Object => D_Variant, 331DbType.SByte => D_TinyInt, 332DbType.Single => D_Single, 333DbType.String => D_VarWChar, 334DbType.StringFixedLength => D_WChar, 335DbType.Time => D_DBTime, 336DbType.UInt16 => D_UnsignedSmallInt, 337DbType.UInt32 => D_UnsignedInt, 338DbType.UInt64 => D_UnsignedBigInt, 339DbType.VarNumeric => D_VarNumeric, 340DbType.Xml => D_Xml,

107public override DbType DbType

696internal static ArgumentException DbTypeNotSupported(System.Data.DbType type, Type enumtype)