# Enum TypeCode

Specifies the type of an object.

**Namespace**: System

**Assembly**: mscorlib.dll

##### Syntax

`public enum TypeCode`

### Fields

Name | Description |
---|---|

Boolean | A simple type representing Boolean values of true or false. |

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

Char | 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. |

DBNull | A database null (column) value. |

DateTime | A type representing a date and time value. |

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

Double | 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. |

Empty | A null reference. |

Int16 | An integral type representing signed 16-bit integers with values between -32768 and 32767. |

Int32 | An integral type representing signed 32-bit integers with values between -2147483648 and 2147483647. |

Int64 | An integral type representing signed 64-bit integers with values between -9223372036854775808 and 9223372036854775807. |

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

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

Single | 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. |

String | A sealed class type representing Unicode character strings. |

UInt16 | An integral type representing unsigned 16-bit integers with values between 0 and 65535. |

UInt32 | An integral type representing unsigned 32-bit integers with values between 0 and 4294967295. |

UInt64 | An integral type representing unsigned 64-bit integers with values between 0 and 18446744073709551615. |