Solved

How to convert a string variable to System.IO.FileStream object in Vb.Net ?

Posted on 2014-09-22
4
790 Views
Last Modified: 2014-09-23
I am working on VS 2012 Environment using Vb.Net Code.

I am reading a .csv file and loading the data to a string variable. Below syntax works fine.


[code]  Dim reader As StreamReader = New System.IO.StreamReader(File.OpenRead("D:\CSV\Test.csv"))
        Dim listA As New List(Of String)()
        Dim listB As New List(Of String)()
        Dim s As String = ""
        While Not reader.EndOfStream
            Dim line As String = reader.ReadLine()
            Dim values As String() = line.Split(";"c)
            listA.Add(values(0))
            s = s + line + Chr(10)
        End While

Open in new window


I have to Pass System.IO.FileStream object to this function.  How to convert string variable to FileStream object ?



  Private Function getEncodeType(ByVal theFile As System.IO.FileStream) As System.Text.Encoding
        Dim _enc As System.Text.Encoding = System.Text.Encoding.UTF8
        If (theFile.CanSeek) Then
            Dim bom(4) As Byte
            theFile.Read(bom, 0, 4)
            ' utf-8 
            ' ucs-2le, ucs-4le, and ucs-16le 
            ' utf-16 and ucs-2 
            If (bom(0) = &HEF AndAlso bom(1) = &HBB AndAlso bom(2) = &HBF) OrElse _
               (bom(0) = &HFF AndAlso bom(1) = &HFE) OrElse _
               (bom(0) = &HFE AndAlso bom(1) = &HFF) OrElse _
               (bom(0) = 0 AndAlso bom(1) = 0 AndAlso bom(2) = &HFE AndAlso bom(3) = &HFF) Then
                ' ucs-4 
                _enc = System.Text.Encoding.Unicode
            Else
                _enc = System.Text.Encoding.UTF8
            End If
        End If

        theFile.Seek(0, IO.SeekOrigin.Begin)

        Return _enc
    End Function

Open in new window

0
Comment
Question by:chokka
  • 2
4 Comments
 
LVL 1

Assisted Solution

by:VijayBalkawade
VijayBalkawade earned 250 total points
ID: 40338301
There is no conversion. You create a FileStream object and, when you do, you provide a String containing the file path. You're already doing that here:

File.OpenRead("D:\CSV\Test.csv")

Open in new window

If you want to use that FileStream again then, just as with any object or value, you assign it to a variable and then use that variable.
0
 
LVL 83

Accepted Solution

by:
CodeCruiser earned 250 total points
ID: 40338697
If you mean you want to write a string back to a file, you can use

System.IO.File.WriteAllText

function.
0
 

Author Comment

by:chokka
ID: 40338913
Okay !! Thank you !!, Looks like i have to create a Temp csv file.
0
 

Author Closing Comment

by:chokka
ID: 40338914
Thank you
0

Featured Post

The New “Normal” in Modern Enterprise Operations

DevOps for the modern enterprise offers many benefits — increased agility, productivity, and more, but digital transformation isn’t easy, especially if you’re not addressing the right issues. Register for the webinar to dive into the “new normal” for enterprise modern ops.

Question has a verified solution.

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

Suggested Solutions

More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

821 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