- namespace System
- {
- //
- // Summary:
- // Specifies the type of an object.
- [ComVisible(true)]
- public enum TypeCode
- {
- //
- // Summary:
- // A null reference.
- Empty = 0,
- //
- // Summary:
- // A general type representing any reference or value type not explicitly represented
- // by another TypeCode.
- Object = 1,
- //
- // Summary:
- // A database null (column) value.
- DBNull = 2,
- //
- // Summary:
- // A simple type representing Boolean values of true or false.
- Boolean = 3,
- //
- // Summary:
- // An integral type representing unsigned 16-bit integers with values between 0
- // and 65535. The set of possible values for the System.TypeCode.Char type corresponds
- // to the Unicode character set.
- Char = 4,
- //
- // Summary:
- // An integral type representing signed 8-bit integers with values between -128
- // and 127.
- SByte = 5,
- //
- // Summary:
- // An integral type representing unsigned 8-bit integers with values between 0 and
- // 255.
- Byte = 6,
- //
- // Summary:
- // An integral type representing signed 16-bit integers with values between -32768
- // and 32767.
- Int16 = 7,
- //
- // Summary:
- // An integral type representing unsigned 16-bit integers with values between 0
- // and 65535.
- UInt16 = 8,
- //
- // Summary:
- // An integral type representing signed 32-bit integers with values between -2147483648
- // and 2147483647.
- Int32 = 9,
- //
- // Summary:
- // An integral type representing unsigned 32-bit integers with values between 0
- // and 4294967295.
- UInt32 = 10,
- //
- // Summary:
- // An integral type representing signed 64-bit integers with values between -9223372036854775808
- // and 9223372036854775807.
- Int64 = 11,
- //
- // Summary:
- // An integral type representing unsigned 64-bit integers with values between 0
- // and 18446744073709551615.
- UInt64 = 12,
- //
- // Summary:
- // 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.
- Single = 13,
- //
- // Summary:
- // 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.
- Double = 14,
- //
- // Summary:
- // A simple type representing values ranging from 1.0 x 10 -28 to approximately
- // 7.9 x 10 28 with 28-29 significant digits.
- Decimal = 15,
- //
- // Summary:
- // A type representing a date and time value.
- DateTime = 16,
- //
- // Summary:
- // A sealed class type representing Unicode character strings.
- String = 18
- }
- }
来源: https://www.cnblogs.com/jijunjian/p/9152927.html