A loop is a sequence of instructions that is continually repeated until a certain condition is reached. It is a fundamental programming idea that is commonly used in writing programs. Without looping in a programming language, hundreds to thousands of repeated computer instructions would be time consuming, if not impossible to perform.
Here are the four types of looping construct in Visual Basic.
For Loop example
Private Sub ForLoop()
Dim intX As Integer
'-->INCREMENTING
For intX = 0 To 10
MsgBox "For Loop #" & intX, vbInformation, _
"Visual Basic Looping"
Next
'-->DECREMENTING
For intX = 10 To 0 Step -1
MsgBox "For Loop Step -1 #" & intX, vbInformation, _
"Visual Basic Looping"
Next
End Sub
Do While Loop example
Private Sub DoWhileLoop()
Dim intX As Integer
intX = 0
Do While intX < 10
MsgBox "Do While Loop #" & intX, vbInformation, _
"Visual Basic Looping"
intX = intX + 1
Loop
End Sub
While Wend Loop example
Private Sub WhileWendLoop()
Dim intX As Integer
intX = 0
While intX < 10
MsgBox "While Wend Loop #" & intX, vbInformation, _
"Visual Basic Looping"
intX = intX + 1
Wend
End Sub
Do Loop Example
Private Sub DoLoop()
Dim intX As Integer
intX = 0
Do
MsgBox "Do Loop #" & intX, vbInformation, _
"Visual Basic Looping"
intX = intX + 1
Loop While intX < 10
End Sub
