text file question

Im using something like this to write to the text file:

VB Code:

Open "C:\test.txt" For Append As #1
        Print #1, Text1.Text & "=" & Text2.Text
        Close #1

which writes into the text file like this:

John=3565 (where John is the text1 name and 3565 is the text2 ID)

But now, if I make 2 more text boxes..

Text3.Text and Text4.Text, and i enter John in Text3.Text and 3565 in Text4.Text, and then i clikc Command1 button, how can i make it msgbox that the username=id is a correct combination?
otherwise i need it to msgbox that its a wrong username/ID etc..

hope you guys know what i mean, thanks in advance!!

You would need to open your C:\test.txt file for Output, read in a line with something like this:

Dim read_data As String
Line Input#1, read_data

Then, split what's read on the '=' to get what's on both sides of the equal sign with:

Dim a As String
Dim b As String
a = Split(read_data, "=") (0)
b = Split(read_data, "=") (1)

Then compare these values to what is in Text3 and Text4:

If Text3.Text = a And Text4.Text = b Then
' enter code here for what to do if they match
Else
' enter code here for what to do if they don't match
End If

ok thanks i got this:

VB Code:

Private Sub Command8_Click()
    Dim read_data As String
    Open "C:\test.txt" For Append As #1
    Line Input #1, read_data
    Dim a As String, b As String
    a = Split(read_data, "=")(0)
    b = Split(read_data, "=")(1)
    Text3.Text = a
    Text4.Text = b
    Close #1
End Sub

but i get bad file code on this line:

Line Input #1, read_data

(at any time the text file will only have 1 line, so i just want it to read the first line in the file)

test.txt contains this:

John=3575

Quote:

---

Originally Posted by doofusboy

You would need to open your C:\test.txt file for Output, read in a line with something like this:

Dim read_data As String
Line Input#1, read_data

Then, split what's read on the '=' to get what's on both sides of the equal sign with:

Dim a As String
Dim b As String
a = Split(read_data, "=") (0)
b = Split(read_data, "=") (1)

Then compare these values to what is in Text3 and Text4:

If Text3.Text = a And Text4.Text = b Then
' enter code here for what to do if they match
Else
' enter code here for what to do if they don't match
End If

---

One minor change I would make

VB Code:

Dim a As String
a = Split(read_data, "=") 
 
If Text3.Text = a(0) And Text4.Text = a(1) Then
     ' enter code here for what to do if they match
Else
     ' enter code here for what to do if they don't match
End If

You really don't need the extra variable.

well i get compile erorr, expected array..

VB Code:

Private Sub Command8_Click()
    Dim read_data As String
    Open "C:\test.txt" For Append As #1
    Line Input #1, read_data
    Dim a As String
    a = Split(read_data, "=")
    Text3.Text = a(0)
    Text4.Text = a(1)
    Close #1
End Sub

im just trying to get 'John' into text3.text and the ID into text4.text

anyone see where im going wrong

Dim a as string

should be

Dim a() as string

ok thanks i changed it but now i get: bad file mode on this line;

Line Input #1, read_data

change Append to Input

Open "C:\test.txt" For Append As #1

is for writing to the file not reading from

Open "C:\test.txt" For Input As #1

ooooops forgot about that, yeah works thanks alot guys!