[RESOLVED] Searching in a text file with array of words

Hi, normally I'm using the code below to search for words in a text file and display the entire line when a match has been found.

VB Code:

Private Sub Command1_Click()
Dim sLines As String
 
Open "C:\textfile.txt" For Input As #1
  Do While Not EOF(1)
   Line Input #1, sLines
    If InStr(1, sLines, "horse") And InStr(1, sLines, "fish") Then
     Text1.Text = Text1.Text & sLines & vbCrLf
    End If
  DoEvents
  Loop
Close #1
 
End Sub

How can I do the same thing when I have the words (horse and fish) stored in an array? Normally I can replace "Horse" with strArray(0) and "Fish" with strArray(1), but the number of words in the array is always different.

In other words, how do I use an array with "If InStr(1, sLines, ????????) Then" when the amount of search words is always different?

(btw, the text file can be 50MB big)

You need to use a loop to go thru all of the items, and store the result of the checks - if any fail then it isn't a match, so don't add the text.

VB Code:

Dim booIsFound as Boolean
Dim lngCounter as Long
    For lngCounter = 0 To UBound(strArray)
      booIsFound = (InStr(1, sLines, strArray(lngCounter)) > 0) 
'the line above is the same as:
      'If InStr(1, sLines, strArray(lngCounter)) Then
      '  booIsFound = True
      'Else
      '  booIsFound = False
      'End If
      If Not booIsFound Then Exit For  'no point checking the others!
    Next lngCounter
    If booIsFound Then
     Text1.Text = Text1.Text & sLines & vbCrLf
    End If

Thank you :)

Too Thanks