tcEmpty

A null reference.

tcObject

A general type representing any reference or value type not explicitly represented by another TypeCode.

tcDBNull

A database null (column) value.

tcBoolean

A simple type representing Boolean values of true or false.

tcChar

An integral type representing unsigned 16-bit integers with values between 0 and 65535. The set of possible values for the Char type corresponds to the Unicode character set.

tcSByte

An integral type representing signed 8-bit integers with values between -128 and 127.

tcByte

An integral type representing unsigned 8-bit integers with values between 0 and 255.

tcInt16

An integral type representing signed 16-bit integers with values between -32768 and 32767.

tcUInt16

An integral type representing unsigned 16-bit integers with values between 0 and 65535.

tcInt32

An integral type representing signed 32-bit integers with values between -2147483648 and 2147483647.

tcUInt32

An integral type representing unsigned 32-bit integers with values between 0 and 4294967295.

tcInt64

An integral type representing signed 64-bit integers with values between -9223372036854775808 and 9223372036854775807.

tcUInt64

An integral type representing unsigned 64-bit integers with values between 0 and 18446744073709551615.

tcSingle

A floating point type representing values ranging from approximately 1.5 x 10 -45 to 3.4 x 10 38 with a precision of 7 digits.

tcDouble

A floating point type representing values ranging from approximately 5.0 x 10 -324 to 1.7 x 10 308 with a precision of 15-16 digits.

tcDecimal

A simple type representing values ranging from 1.0 x 10 -28 to approximately 7.9 x 10 28 with 28-29 significant digits.

tcDateTime

A type representing a date and time value.

tcString

A sealed class type representing Unicode character strings.