Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

How can I open a file then search its contents for a string

Posted on 2004-03-31
7
Medium Priority
?
398 Views
Last Modified: 2008-01-16
Please give an example

Must be able to use wildcards

How can I open a file then search its contents for a string.
If the string is found it will immediately stop the search, close the file, then return a True value.
If the string is not found it will close the file then return a False value.
0
Comment
Question by:brianshoenhair
7 Comments
 
LVL 19

Expert Comment

by:Shauli
ID: 10727211
Private Sub Command1_Click()
MsgBox FindInFile("mypath & filename", "string to search")
End Sub

Private Function FindInFile(ByVal fnFileName As String, fnSearch As String) As Boolean
Dim myLine As String
FindInFile = False
Open fnFileName For Input As #1
    Do Until EOF(1)
        Line Input #1, myLine
            If InStr(1, myLine, fnSearch) > 0 Then
                FindInFile = True
                Exit Do
            End If
    Loop
Close #1
End Function

S
0
 

Author Comment

by:brianshoenhair
ID: 10727731
Wildcards are a must

Shauli, your example does not work with wildcards
0
 
LVL 19

Expert Comment

by:Shauli
ID: 10727882
Using InStr you don't really need a wildcard, as it looks for any part of a string. However, if your user is using a wildcard, then:

Private Sub Command1_Click()
MsgBox FindInFile("C:\My Documents\products.txt", "sha*")
End Sub

Private Function FindInFile(ByVal fnFileName As String, fnSearch As String) As Boolean
Dim myLine As String
FindInFile = False
Open fnFileName For Input As #1
    Do Until EOF(1)
        Line Input #1, myLine
            If InStr(1, myLine, Replace(fnSearch, "*", "")) > 0 Then
                FindInFile = True
                Exit Do
            End If
    Loop
Close #1
End Function

S
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 19

Expert Comment

by:Shauli
ID: 10727893
Of course:

Private Sub Command1_Click()
MsgBox FindInFile("your path & file", "*your string*")
End Sub

:)

S

0
 
LVL 7

Expert Comment

by:ramesh12
ID: 10727986
C if this is of any help to you

http://www.aivosto.com/regexpr.html
0
 
LVL 4

Accepted Solution

by:
sokolovsky earned 400 total points
ID: 10728159
'Use simple Like with all wildcards like in MS Access
'ex: "test" like "te*t" = True

Option Explicit
Private Sub Form_Load()
    MsgBox FindInFile("C:\boot.ini", "*default*")
End Sub
Private Function FindInFile(ByVal FileName As String, Search As String) As Boolean
Dim strLine As String
FindInFile = False
Open FileName For Input As #1
    Do Until EOF(1)
        Line Input #1, strLine
            If strLine Like Search Then
                FindInFile = True
                Exit Do
            End If
    Loop
Close #1
End Function
0
 

Author Comment

by:brianshoenhair
ID: 10733109
Thank You everyone for your response.

The Like Operator is the best for what I am trying to do.

Points will go to sokolovsky.
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
Since upgrading to Office 2013 or higher installing the Smart Indenter addin will fail. This article will explain how to install it so it will work regardless of the Office version installed.
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…
Suggested Courses

926 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question