Programmation Visual Basic .NET/Fonctions VB6 en .NET

Cette table de conversion compare Visual Basic 6 à Visual Basic .NET (sachant que ce dernier accepte aussi les fonctions VB6 via Microsoft.VisualBasic namespace).

Programmation Visual Basic .NET

• Introduction
• Visual Studio
• Premier script

Bases du langage

• Variables
• Tableaux
• Conditions
• Boucles

Opérateurs

• Assignation et comparaison
• Arithmétique
• Chaines de caractères
• Logique
• Gestion d'exception

Programmation orientée objet

• Classes
• Namespaces
• Héritage
• Interfaces
  • L'interface IDisposable

Structure de données avancée

• Contrôles
• Énumérations
• Collections
• GDI+

Divers

Visual Basic 6	.NET Equivalent
App.Path	Application.StartupPath
CallByName	Type Object.InvokeMember
Circle	Graphics Object.DrawEllipse
Collection	Collections.Hashtable, Collections.Dictionary
Command	Environment.GetCommandLineArgs
DoEvents	Application.DoEvents
Environ	Environment.GetEnvironmentVariable
Err	Deprecated - Use Exception object and Try ... Catch ... End Try statement
Error	Exception Object.Message
GetSetting	Deprecated - Look into Configuration.ConfigurationSettings
IIf	Deprecated
InputBox	Deprecated - Make your own form
Len	Runtime.InteropServices.Marshal.SizeOf
MsgBox	MessageBox.Show
RGB	Color Object.FromArgb
SavePicture	Image Object.Save
SaveSetting	Deprecated - Look into Configuration.ConfigurationSettings
SendKeys	SendKeys.Send
Shell	Process.Start
Switch	Deprecated
TypeName	Any Object.GetType.ToString
Unload	Deprecated
VarType	Any Object.GetType

Chaines de caractères

Visual Basic 6	.NET Equivalent
Asc	Convert.ToInt32(Char)
Chr	Convert.ToChar
Format	Any Object.ToString(Format String)
FormatCurrency	Any Numeric Object.ToString("c")
FormatDateTime	Date Object.ToString(Format String), Date Object.ToLongDateString
FormatNumber	Any Numeric Object.ToString(Format String)
FormatPercent	Any Numeric Object.ToString("p")
Hex	Integer Object.ToString("x"), Convert.ToString(Integer, 16)
InStr	String Object.IndexOf
InStrRev	String Object.LastIndexOf
Join	String.Join
LCase	String Object.ToLower
Left	String Object.Substring
Len	String Object.Length
LTrim	String Object.TrimStart
Mid	String Object.Substring
Oct	Convert.ToString(Integer, 8)
Replace	String Object.Replace
Right	String Object.Substring
RTrim	String Object.TrimEnd
Space	String Object.PadLeft, String Object.PadRight
Split	String Object.Split
String	String Object = New String(Char, Count)
StrReverse	Dim c() As Char = Array.Reverse(String Object.ToCharArray)
Trim	String Object.Trim
UCase	String Object.ToUpper

Fichiers et répertoires

Visual Basic 6	.NET Equivalent
ChDir	IO.Directory.SetCurrentDirectory
CurDir	IO.Directory.GetCurrentDirectory
Dir	IO.Directory.GetFiles, IO.Directory.GetDirectories, IO.Directory.Exists, IO.File.Exists
EOF	IO.StreamReader.Peek = -1
FileAttr	Deprecated - Use StreamReader or StreamWriter
FileCopy	IO.File.Copy
FileDateTime	IO.File.GetLastAccessTime, IO.File.GetCreationTime
FileLen	IO.FileStream Object.Length
GetAttr	IO.File.GetAttributes
Loc	IO.Stream Object.Position
LOF	IO.Stream Object.Length
MkDir	IO.Directory.CreateDirectory
RmDir	IO.Directory.Delete
SetAttr	IO.File.SetAttributes

Tableaux

Visual Basic 6	.NET Equivalent
Filter	Array.BinarySearch
UBound	Any Type of Array.GetUpperBound(0)

Dates

Visual Basic 6	.NET Equivalent
DateAdd	Date Object.Add
DateDiff	Date Object.Subtract
Now	DateTime.Now

Math

Visual Basic 6	.NET Equivalent
Abs	Math.Abs
Atn	Math.Atan
Cos	Math.Cos
Exp	Math.Exp
Fix	Math.Floor (for negative numbers), Math.Ceiling (for positive numbers)
Int	Math.Floor
Log	Math.Log
Randomize	Deprecated - Random Object is automatically randomized declared
Rnd	System.Random Object.Next
Round	Math.Round
Sgn	Math.Sign
Sin	Math.Sin
Sqr	Math.Sqrt
Tan	Math.Tan

Références

• MSDN Library

Voir aussi

• anglais What you will need to change about the project template
• anglais How to make a project template