Visual Basic, C #, and C ++ data types)

The following table lists some value types supported by. NET Framework, briefly describes each type, and indicates the corresponding types in the Visual Basic, C #, and C ++ managed extensions. The table also contains items of the object and string classes. These items have corresponding keywords in many languages.

Category	Class Name	Description	Visual Basic Data Type	C # Data Type	C ++ managed Extended Data Type	JScript Data Type
Integer	Byte	An unsigned integer of 8 digits.	Byte	Byte	Char	Byte
	Sbyte	An 8-bit signed integer. Does not match Cls.	Sbyte No built-in type.	Sbyte	Signed Char	Sbyte
	Int16	A 16-bit signed integer.	Short	Short	Short	Short
	Int32	A 32-bit signed integer.	Integer	Int	Int -Or- Long	Int
	Int64	A 64-bit signed integer.	Long	Long	_ Int64	Long
	Uint16	A 16-bit unsigned integer. Does not match Cls.	Uint16 No built-in type.	Ushort	Unsigned short	Uint16
	Uint32	A 32-bit unsigned integer. Does not match Cls.	Uint32 No built-in type.	Uint	Unsigned int -Or- Unsigned long	Uint32
	Uint64	A 64-bit unsigned integer. Does not match Cls.	Uint64 No built-in type.	Ulong	Unsigned _ int64	Uint64
Floating Point	Single	Single precision (32-bit) floating point number.	Single	Float	Float	Float
	Double	Double Precision (64-bit) floating point number.	Double	Double	Double	Double
Logic	Boolean	Boolean (true or false ).	Boolean	Bool	Bool	Bool
Others	Char	Unicode (16-bit) characters.	Char	Char	Wchar_t	Char
	Decimal	96-digit decimal value.	Decimal	Decimal	Decimal	Decimal
	Intptr	The size depends on the signed integer of the basic platform (32-bit platform and 64-bit platform.	Intptr No built-in type.	Intptr No built-in type.	Intptr No built-in type.	Intptr
	Uintptr	The size depends on the unsigned integer of the basic platform (32-bit platform and 64-bit platform ). Does not match Cls.	Uintptr No built-in type.	Uintptr No built-in type.	Uintptr No built-in type.	Uintptr
Class Object	Object	The root of the object hierarchy.	Object	Object	Object *	Object
	String	A fixed-length string of Unicode characters.	String	String	String *	String

 

 

Platform call data type

 

Unmanaged type in wtypes. h	Unmanaged C language type	Managed class name	Description
Handle	Void *	System. intptr	32-bit
Byte	Unsigned char	System. byte	8-digit
Short	Short	System. int16	16-bit
Word	Unsigned short	System. uint16	16-bit
Int	Int	System. int32	32-bit
Uint	Unsigned int	System. uint32	32-bit
Long	Long	System. int32	32-bit
Bool	Long	System. int32	32-bit
DWORD	Unsigned long	System. uint32	32-bit
Ulong	Unsigned long	System. uint32	32-bit
Char	Char	System. Char	It is modified with ANSI.
Lpstr	Char *	System. string or system. stringbuilder	It is modified with ANSI.
Lpcstr	Const char *	System. string or system. stringbuilder	It is modified with ANSI.
Lpwstr	Wchar_t *	System. string or system. stringbuilder	Use Unicode.
Lpcwstr	Const wchar_t *	System. string or system. stringbuilder	Use Unicode.
Float	Float	System. Single	32-bit
Double	Double	System. Double	64-bit