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07.30.2008 at 06:30AM PDT, ID: 23607212
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9.3

Problem with Filestream reads

Asked by Integritygraphics in .Net Editors & IDEs, Microsoft Visual Basic.Net, .NET Framework 2.x

Tags: , , , ,

I am having an issue with too much data in the last read of a filestream. Writng to a file works fine but coverting it to a string is an issue. What happens is that it repeats some of the previous reads data on the last read but only to the string

The first 5 reads are 1024 bytes the 6th read is only 849 remaining the remaining 174 bytes are from the previosu read.
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Protected Sub textbuffertest_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles textbuffertest.Click
        Dim input As New FileStream("c:\promotion.txt", FileMode.Open, FileAccess.Read)
        Dim output As New FileStream("c:\Myoutputfile.txt", FileMode.Create, FileAccess.Write)
        Dim MyTest As String = String.Empty
 
        Dim count As Integer = 1024
        Dim buffer(count - 1) As Byte
        count = input.Read(buffer, 0, count)
        Do Until count = 0
            ' modify each byte in buffer here            
            MyTest += ByteArrayToString(buffer)
            output.Write(buffer, 0, count)
            count = input.Read(buffer, 0, count)
         Loop
        input.Close()
        output.Close()
        Outputtext.Text = MyTest
    End Sub
    Public Function ByteArrayToString(ByVal bytArray() As Byte) As String
        Dim sAns As String
        Dim iPos As String
        sAns = System.Text.Encoding.GetEncoding(1252).GetString(bytArray)
 
        'System.Text.Encoding.Unicode.GetString(bytArray)
        iPos = InStr(sAns, Chr(0))
        If iPos > 0 Then sAns = Left(sAns, iPos - 1)
 
        ByteArrayToString = sAns
 
    End Function
 
Keywords: Problem with Filestream reads
Title
1 GZipStream on FileStream
2 FileStreams in memory
3 filestream
4 FileStream to FileStream Copy
5 FileStream to FileStream Copy
6 Filestream Read
 
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[+][-]07.30.2008 at 07:06AM PDT, ID: 22120505

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About this solution

Zones: .Net Editors & IDEs, Microsoft Visual Basic.Net, .NET Framework 2.x
Tags: Microsoft, vb .net, vs 2005, Problem with FileStream reads, vb .net
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Solution Provided By: jaime_olivares
Participating Experts: 1
Solution Grade: A
 
 
 
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