reading specific line from a text file in vb 6

hi guys
have a look at this code

Code:

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Open "C:\Score.txt" For Input As #1
Text1.Text = Input$(LOF(1), #1)

lblX.Caption = Text1.Text
lblO.Caption = Text1.Text

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the score text file contains the following

Code:

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2
3

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when i run the program, and load the file, the lblX and the lblO
both display everything in the text file

but i would like the lblX to display the first line in the text file ie: 2

and the lblO to display the second line in the text file ie: 3

so how can i do this?

Only two lines in the text file? or only the 1st two lines needed? Then try this instead

Code:

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Dim strLine As String
Open "C:\Score.txt" For Input As #1
Line Input #1, strLine ' read one line at a time vs entire file
lblX.Caption = strLine
Line Input #1, strLine
lblO.Caption = strLine
Close #1

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only two lines in the text file
ps: i need to incorporate the LOF function. dont ask why, just part of my project.

Quote:

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Originally Posted by kashhash

only two lines in the text file
ps: i need to incorporate the LOF function. dont ask why, just part of my project.

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If you need to cache the LOF, then cache it, but you don't need to use it for the purpose you are describing. If I am misunderstanding, please provide more specific details

ok, i will leave the LOF file in the program but we wont use it in this example.

Code:

---

Dim strLine As String
Open "C:\Score.txt" For Input As #1
Line Input #1, strLine ' read one line at a time vs entire file
lblX.Caption = strLine
Line Input #1, strLine
lblO.Caption = strLine
Close #1

---

however this doesnt seem to be working :(
it says "input past end of file"

Is this homework? And what is not working? Details and/or error descriptions and what lines those errors may be occuring on.

Code:

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Line Input #1, strLine ' read one line at a time vs entire file

---

error message [debug]: "input past end of file"

Need to see your routine now. That error generally means you already read the data once completely and the file was not closed or that the file is empty.

hi,
it works now but unfortunately the source of the error came from this line

Code:

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Text1.Text = Input$(LOF(1), #1)

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so i had to cut this line out
but this is the line i needed lol.
hmmm..

The code:
Line Input.....reads to the CR/LF...normally at the end of line in an ASCII file (see link below)
Input...reads to the next comma ','

Maybe the error is trying to read past the end of line or end of file (EOF)
Try testing the EOF first...If EOF(1) then.....

Input, test eof...if not then process

So is this homework? If not, why must you use the LOF function?

If this is homework, that is ok too, we may not write all the code but can tell you how to do what you are trying to do

copy your lines in alistbox using:

Function get_msg(usfile As String)
Dim sFile$, sText$, arLines() As String
Dim I%
sFile = usfile
Open sFile For Input As #1
sText = Input(LOF(1), #1)
Close #1
arLines = Split(sText, vbNewLine)
For I = 0 To UBound(arLines)
list1.AddItem arLines(I)
Next I
Close #1
'---------------------------------------------
End Function

then you can read the line you want from the listbox using
list1.list (line_number)

Try this:

VB Code:

Private Sub Form_Load()
   Text1.MultiLine = True
   Open "C:\Score.txt" For Input As #1
   Text1.Text = Input$(LOF(1), #1)
 
   lblX.Caption = udf_ReadLine(Text1.Text, 1)   ' read line #1
   lblO.Caption = udf_ReadLine(Text1.Text, 2)   ' read line #2
 
   Close #1
End Sub
 
Private Function udf_ReadLine(ByVal sDataText As String, ByVal nLineNum As Long) As String
    Dim sText As String, nI As Long, nJ As Long, sTemp As String
 
    On Error GoTo ErrHandler
 
    sText = ""
    nI = 1
    nJ = 1
    sTemp = ""
    While (nI <= Len(sDataText))
        Select Case Mid(sDataText, nI, 1)
            Case vbCr
                If (nJ = nLineNum) Then
                    sText = sTemp
                End If
            Case vbLf
                nJ = nJ + 1
                sTemp = ""
            Case Else
                sTemp = sTemp & Mid(sDataText, nI, 1)
        End Select
        nI = nI + 1
    Wend
    If (nJ = nLineNum) Then
        sText = sTemp
    End If
    udf_ReadLine = sText
 
    Exit Function
 
ErrHandler:
    udf_ReadLine = ""
End Function

PS: I just added a function to read line from a string, and you can keep using the LOF function as you wish, also all of the concept from your original code.

good luck ;)

works..thanks :D

If your problem is solved, then mark the thread as RESOLVED from the THREAD TOOLS
-Best wishes to all:thumb:

I have to wonder what happened between April 7th and yesterday.

Amazing how mummies can sometimes emerge suddenly from their tombs. :eek:

Doc, is that to me???

Quote:

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Originally Posted by akhileshbc

Doc, is that to me???

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No, to either the OP or Batori. This post originally went off the screen last April. Apparently it went into some sort of hibernation. ;)

Oh i thought u r saying that to me because i was offline for some weeks...:)...
Gud nite:)