Types of Looping Construct in Visual Basic

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