TypeCode Enumeration
Assembly: mscorlib (in mscorlib.dll)
| Member name | Description | |
|---|---|---|
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Boolean | A simple type representing Boolean values of true or false. |
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Byte | An integral type representing unsigned 8-bit integers with values between 0 and 255. |
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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. |
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DateTime | A type representing a date and time value. |
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DBNull | A database null (column) value. |
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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. |
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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. |
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Empty | A null reference. |
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Int16 | An integral type representing signed 16-bit integers with values between -32768 and 32767. |
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Int32 | An integral type representing signed 32-bit integers with values between -2147483648 and 2147483647. |
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Int64 | An integral type representing signed 64-bit integers with values between -9223372036854775808 and 9223372036854775807. |
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Object | A general type representing any reference or value type not explicitly represented by another TypeCode. |
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SByte | An integral type representing signed 8-bit integers with values between -128 and 127. |
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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. |
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String | A sealed class type representing Unicode character strings. |
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UInt16 | An integral type representing unsigned 16-bit integers with values between 0 and 65535. |
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UInt32 | An integral type representing unsigned 32-bit integers with values between 0 and 4294967295. |
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UInt64 | An integral type representing unsigned 64-bit integers with values between 0 and 18446744073709551615. |
Call the GetTypeCode method on classes that implement the IConvertible interface to obtain the type code for an instance of that class.
Otherwise, call an object's GetType method to obtain its Type object, then call the Type object's GetTypeCode method to obtain the object's type code.
The following code example demonstrates how the TypeCode enumeration can be used. In a decision block inside the WriteObjectInfo method, the TypeCode of an Object parameter is examined, and an appropriate message is written to the console.
static void WriteObjectInfo(object testObject) { TypeCode typeCode = Type.GetTypeCode( testObject.GetType() ); switch( typeCode ) { case TypeCode.Boolean: Console.WriteLine("Boolean: {0}", testObject); break; case TypeCode.Double: Console.WriteLine("Double: {0}", testObject); break; default: Console.WriteLine("{0}: {1}", typeCode.ToString(), testObject); break; } }
static void WriteObjectInfo(Object testObject)
{
TypeCode typeCode = Type.GetTypeCode(testObject.GetType());
switch (typeCode) {
case TypeCode.Boolean :
Console.WriteLine("Boolean: {0}", testObject);
break;
case TypeCode.Double :
Console.WriteLine("Double: {0}", testObject);
break;
default :
Console.WriteLine("{0}: {1}", typeCode.ToString(), testObject);
break;
}
} //WriteObjectInfo
} //Class1
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
