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While Wend Statement

The While Wend statement is a control structure that controls a repetitive action. It does not return a value. Siebel VB includes the While statement so that it is compatible with older versions of Visual Basic. If possible, it is recommended that you use the Do Loop statement instead. For more information, see Do Loop Statement.

Format

While condition
   statement_block
Wend

The following table describes the arguments that you can use with this method.

Example

The following example opens a series of files and looks for the following string in each file:

*Overdue*

This example uses the While Wend statement to loop through the c:\temP00? files. The CreateFiles subroutine creates these files:

(general) (declarations)
Option Explicit
Declare Sub CreateFiles

Sub CreateFiles
  Dim odue as String
  Dim ontime as String
  Dim x
  Open "c:\temp001" for OUTPUT as #1
  odue = "*Overdue*"
  ontime = "*On-Time*"
  For x = 1 to 3
     Write #1, odue
  Next x

  For x = 4 to 6
      Write #1, ontime
  Next x
  Close #1
  Open "c:\temp002" for Output as #1
  Write #1, odue
  Close #1
End Sub

Sub Button_Click
   Dim custfile as String
   Dim aline as String
   Dim pattern as String
   Dim count as Integer
   Call CreateFiles
   Chdir "c:\"
   custfile = Dir$("temP00?")
   pattern = "*" + "Overdue" + "*"
   While custfile <> ""
      Open custfile for input as #1
      On Error goto atEOF
      Do
          Line Input #1, aline
          If aline Like pattern Then
             count = count + 1
          End If
      Loop
nxtfile:
      On Error GoTo 0
      Close #1
      custfile = Dir$
   Wend
   Kill "c:\temp001"
   Kill "c:\temp002"
   Exit Sub
atEOF:
      Resume nxtfile
End Sub