Programming Element Support Changes Summary

Support for various programming elements has changed since Visual Basic 6.0, mostly for interoperability with the common language runtime. Many Visual Basic 6.0 elements are renamed, reclassified, or combined with other programming elements. Several elements are no longer supported, because the common language runtime (CLR) includes functionality that makes them unnecessary. For more information, see Common Language Runtime.

For additional information about changes to Visual Basic, see Help for Visual Basic 6.0 Users. This topic includes information about changes to the integrated development environment (IDE), Web functionality, projects, forms, constants, and the Circle, Line, and Pset methods.

Changed Elements

The following table lists changed programming elements and their replacements.

Visual Basic 6.0 programming element	Visual Basic 2008 equivalent	Namespace, class, or run-time library location
Abs function	Abs Method	System Namespace, Math Class
AscB function	Asc Function	Visual Basic Run-Time Library Members, Strings module
As Any keyword phrase	Not supported in Visual Basic 2008. See Declaration Syntax for Visual Basic 6.0 Users.	Does not apply
Atn function	Atan Method	System Namespace, Math Class
Calendar property	CurrentCulture Property	System.Globalization Namespace, CultureInfo Class
ChDir statement	ChDir Function	Visual Basic Run-Time Library Members, FileSystem module
ChDrive statement	ChDrive Function	Visual Basic Run-Time Library Members, FileSystem module
Chr$,ChrB, functions	Chr Function	Visual Basic Run-Time Library Members, Strings module
Close statement	FileClose Function	Visual Basic Run-Time Library Members, FileSystem module
Cos function	Cos Method	System Namespace, Math Class
Currency data type	Decimal Data Type; see Data Type Changes for Visual Basic 6.0 Users	Visual Basic Run-Time Library Members, VariantType Enumeration
CVDate function	DateValue Function	Visual Basic Run-Time Library Members, DateAndTime module
CVErr function	Error Statement	Does not apply
Date function, Date statement	Now Property, Today Property	Visual Basic Run-Time Library Members, DateAndTime module
Date$ function	DateString Property	Visual Basic Run-Time Library Members, DateAndTime module
Debug.Assert method	Assert, Fail methods	System.Diagnostics Namespace, Debug Class
Debug.Print method	Write, WriteIf, WriteLine, and WriteLineIf methods	System.Diagnostics Namespace, Debug Class
Deftype statements	Not supported in Visual Basic 2008. See Data Type Changes for Visual Basic 6.0 Users	Does not apply
DeleteSetting statement	DeleteSetting Function	Visual Basic Run-Time Library Members, Interaction module
DoEvents function	DoEvents Method	System.Windows.Forms Namespace, Application Class
Empty keyword	Nothing	Does not apply
Eqv operator	= Operator; see Boolean Operator for Visual Basic 6.0 Users	Does not apply
Exp function	Exp Method	System Namespace, Math Class
FileCopy statement	FileCopy Function	Visual Basic Run-Time Library Members, FileSystem module
Get statement	FileGet Function	Visual Basic Run-Time Library Members, FileSystem module
GoSub statement	Not supported in Visual Basic 2008; use the Return Statement. See Control Statement for Visual Basic 6.0 Users.	Does not apply
Imp operator	Not supported in Visual Basic 2008. See Not and Or operators, and Boolean Operator for Visual Basic 6.0 Users.	Does not apply
Initialize event	Not supported in Visual Basic 2008; use Sub New. See Class_Initialize Changes for Visual Basic 6.0 Users and Using Constructors and Destructors	Does not apply
Input #, Input$ statements, Input$, InputB, InputB$ functions	Input Function	Visual Basic Run-Time Library Members, FileSystem module
Instancing property	Not supported in Visual Basic 2008. For class-level declarations, see Private (Visual Basic) and Public (Visual Basic). For procedure-level declarations, see Shared (Visual Basic).	Does not apply
InStrB function	InStr Function	Visual Basic Run-Time Library Members, Strings module
IsEmpty function	IsNothing Function	Visual Basic Run-Time Library Members, Information module
IsMissing function	Not supported in Visual Basic 2008. See Procedure Declaration for Visual Basic 6.0 Users.	Does not apply
IsNull function	IsDbNull Function	Visual Basic Run-Time Library Members, Information module
IsObject function	IsReference Function	Visual Basic Run-Time Library Members, Information module
Kill statement	Kill Function	Visual Basic Run-Time Library Members, FileSystem module
LCase$ function	LCase Function	Visual Basic Run-Time Library Members, Strings module
Left$, LeftB, LeftB$ functions	Left Function	Visual Basic Run-Time Library Members, Strings module
LenB function	Len Function	Visual Basic Run-Time Library Members, Strings module
Let, Set assignment statements	Not supported in Visual Basic 2008; the new Set statement is unrelated to the older one. See Default Property Changes for Visual Basic 6.0 Users.	Does not apply
Line Input # statement	LineInput Function	Visual Basic Run-Time Library Members, FileSystem module
Load statement	New (Visual Basic) keyword, Show method, Load event	Visual Basic Run-Time Library Members, System.Windows.Forms namespace
Lock statement	Lock, Unlock Functions	Visual Basic Run-Time Library Members, FileSystem module
Log function	Log Method	System Namespace, Math Class
LSet, RSet statements	LSet Function, PadRight, PadLeft; see Data Type Changes for Visual Basic 6.0 Users	Visual Basic Run-Time Library Members, Strings module; and System Namespace, String Class
LTrim$ function	LTrim Function	Visual Basic Run-Time Library Members, Strings module
MidB function	Mid Function	Visual Basic Run-Time Library Members, Strings module
MidB statement	Mid Statement	Visual Basic Run-Time Library Members, Strings module
MkDir statement	MkDir Function	Visual Basic Run-Time Library Members, FileSystem module
Name statement	Rename Function	Visual Basic Run-Time Library Members, FileSystem module
Now function	Now Property	Visual Basic Run-Time Library Members, DateAndTime module
Null keyword	Nothing	Does not apply
Oct$ function	Oct Function	Visual Basic Run-Time Library Members, Conversion module
On ... GoSub construction	Not supported in Visual Basic 2008; use Select...Case Statement. See Control Statement for Visual Basic 6.0 Users.	Does not apply
On ... GoTo construction	Not supported in Visual Basic 2008; use Select...Case Statement. See Control Statement for Visual Basic 6.0 Users.	Does not apply
Open statement	FileOpen Function	Visual Basic Run-Time Library Members, FileSystem module
Option Base statement	Not supported in Visual Basic 2008. See Array Bounds for Visual Basic 6.0 Users.	Does not apply
Option PrivateModule statement	Not supported in Visual Basic 2008; use Module Statement.	Does not apply
Print # statement	Print, PrintLine Functions	Visual Basic Run-Time Library Members, FileSystem module
Property Get, Property Let, Property Set statements	Not supported in Visual Basic 2008. See Property Procedure Changes for Visual Basic 6.0 Users.	Does not apply
Put statement	FilePut Function	Visual Basic Run-Time Library Members, FileSystem module
Reset statement	Reset Function	Visual Basic Run-Time Library Members, FileSystem module
Right$, RightB functions	Right Function	Visual Basic Run-Time Library Members, Strings module
RmDir statement	RmDir Function	Visual Basic Run-Time Library Members, FileSystem module
Round function	Round Method	System Namespace, Math Class
RSet, LSet statements	RSet Function; see Data Type Changes for Visual Basic 6.0 Users	Visual Basic Run-Time Library Members, Strings module
RTrim$ function	RTrim Function	Visual Basic Run-Time Library Members, Strings module
SaveSetting statement	SaveSetting Function	Visual Basic Run-Time Library Members, Interaction module
Scale method	Not supported in Visual Basic 2008.	Does not apply
Set, Let assignment statements	Not supported in Visual Basic 2008; the new Set statement is unrelated to the older one. See Default Property Changes for Visual Basic 6.0 Users	Does not apply
SetAttr statement	SetAttr Function	Visual Basic Run-Time Library Members, FileSystem module
Sgn function	Sign Function	System Namespace, Math Class
Sin function	Sin Method	System Namespace, Math Class
Sqr function	Sqrt Function	System Namespace, Math Class
String function	String Constructor; see String ($) Function for Visual Basic 6.0 Users	System Namespace, String Class
String ($) functions	Not supported in Visual Basic 2008. See String ($) Function for Visual Basic 6.0 Users.	Does not apply
Terminate event	Not supported in Visual Basic 2008; use Sub Dispose and Sub Finalize. See Using Constructors and Destructors.	Does not apply
Time function, Time statement	TimeOfDay Property; see DateTime Structure, Date Data Type	Visual Basic Run-Time Library Members, DateAndTime module
Time$ function	TimeString Property	Visual Basic Run-Time Library Members, DateAndTime module
Timer function	Timer Property	Visual Basic Run-Time Library Members, DateAndTime module
Trim$ function	LTrim, RTrim, and Trim Functions	Visual Basic Run-Time Library Members, Strings module
Type statement	Not supported in Visual Basic 2008; use Structure Statement. See Structure Declaration for Visual Basic 6.0 Users.	Does not apply
UCase$ function	UCase Function	Visual Basic Run-Time Library Members, Strings module
Unlock statement	Lock, Unlock Functions	Visual Basic Run-Time Library Members, FileSystem module
Variant data type	Object Data Type; see Universal Data Type Changes for Visual Basic 6.0 Users	Does not apply
Wend keyword	While...End While Statements and End Statement; see Control Statement for Visual Basic 6.0 Users	Does not apply
Width # statement	FileWidth Function	Visual Basic Run-Time Library Members, FileSystem module
Write # statement	Write, WriteLine Functions	Visual Basic Run-Time Library Members, FileSystem module

See Also

Other Resources

Language Changes for Visual Basic 6.0 Users

Help for Visual Basic 6.0 Users

Common Language Runtime