Visual Basic Cheat Sheet

Visual Basic Cheat Sheet

email Scott Turner

names
alphanumeric (including _), beginning with a letter. generic expressions
(x)

numbers (Byte, Integer, Long, Single, Double)

0, 1, -1, ..., &H000000FF&

1.0, 2.0, 1.5, 0.6666, ...
a + b
a - b
- a
a * b
a / b
a ^ b
int = float converts by rounding.

sentences (Boolean)

False
True
a = b
a <> b
a < b
a <= b
a >= b
a > b
s And t
s Or t
Not s

strings (String)

"whatever"
s + t

actions

If <boolean expr> Then
  ...
End If

If <boolean expr> Then
  ...
ElseIf <boolean expr> Then
  ...
Else
  ...
End If

Select Case name
    Case "Kevin": <stmt>
    Case "Phil": <stmt>
End Select

End       <terminates the program>

Print <expr>

procedure definitions

Function functionName(x As Type1) As Type2
    action1
    action2
    functionName = ... x ...;
End Function
Sub subroutineName(x As Type1)
    action1
    action2
End Sub

variables


Dim d As String

scope depends on where declared

name = expression

modules

base (or global) code module	Variables persist until end of program. Global (program-scope) types, variables, and constants may be defined. `Global a As Integer` Contains only code, not events. .bas extension
form declaration module	definitions block/section defines variables and procedures local to that form Form modules are allocated storage only while the form is loaded. When the form is unloaded, the state is lost.
procedure or event	defines a local block, visible only to itself

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