Visual Basic Cheatsheet by Haris Malik

Sample Program

Public Module Program
 Public Sub Main(args() As string)
Console.WriteLine("Hello, World!")
End Sub
 End Module

Example

Dim byteVar As Byte
Dim intVar As Integer = 100
Dim doubleVar As Double
Dim dateVar As Date 
Dim charVar As Char = "A"
Dim strVar As String = "OneCompiler"
Dim boolVar As Boolean = TRUEt

Constants

[ < attributeList > ] [ accessModifier ] [ Shadows ] Const constantName [ As datatype ] = value

Operators

Operator type	      Description
Arithmetic Operator	+ , - , * , / , , MOD, ^
Relational Operator	< , > , <= , >= , =
BitWise Operator	AND, OR, XOR, NOT, AndAlso, OrElse, isTrue, isFalse
BitWise Shift Operator	AND, OR, XOR, NOT, << , >>
Logical Operator	&& , ||, !
Assignment Operator	= , += , -= , *= , /=, = , %= ,<<=,>>=, &=, ^=
Miscellaneous Operator	AddressOf, Await, GetType

Strings

Dim variableName As String
Dim Name As String = "harismalik"

Conditional Statements

If condition-expression Then 
            'code
        End If

If(conditional-expression)Then
   'code if the conditional-expression is true 
Else
  'code if the conditional-expression is false 
End If


If(conditional-expression)Then
   'code if the above conditional-expression is true 
Else If(conditional-expression) Then
        'code if the above conditional-expression is true 
    Else
        'code if the above conditional-expression is false 
End If



If(conditional-expression)Then
   'code if the above conditional-expression is true
   If(conditional-expression)Then
         'code if the above conditional-expression is true 
   End If
End If

Select Cases

Select [ Case ] expression
[ Case expressionlist
    'code ]
[ Case Else
    'code ]
 End Select

Loops

For..Next

For counter [ As datatype ] = begin To end [ Step step ]
'code
[ Continue For ]
'code
[ Exit For ]
'code
 Next [ counter ]

For..Each

It is used to concatenate two strings

For Each element [ As datatype ] In group
'code
[ Continue For ]
'code
[ Exit For ]
'code
Next [ element ]

While

While conditional-expression
'Code 
[ Continue While ]
'Code
[ Exit While ]
'Code
End While

DO -while

Do { While | Until } conditional-expression
'Code
[ Continue Do ]
 'Code
[ Exit Do ]
'Code
Loop

Functions

Functions consists of a set of statements which perform a sepcific functionality and they return a value when they are called.

[accessModifiers] Function functionName [(parameterList)] As returnType
'code
End Functioncode>

Sub-Procedures

Sub-procedures are similar to functions but they don't return any value.

Sub ProcedureName (parameterList)
'Code
End Sub