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Convert ASCII string to UTF8 string

Posted on 2008-06-17
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Can anyone tell me how to convert an ascii file to the utf-8 format?  I need a solution in VB.NET using the compact framework.   Thanks!
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Question by:deegle77
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Fernando Soto earned 1500 total points
ID: 21803569
Hi deegle77;

This should work in compact framework. Not sure if you needed to convert it to a string in the program or wanted a new file in utf-8 format, sample code does both.

Fernando
To make a ASCII file into UTF-8 file
 
        ' Set up a stream reader to read the ASCII text file
        Dim sr As New StreamReader("AsciiFile.txt", Encoding.ASCII)
        ' Read the file and convert the ASCII characters to Unicode encoding
        ' by using the ToCharArray to do the encoding
        Dim chrArray() As Char = sr.ReadToEnd().ToCharArray()
        ' Write the data to a new file in UTF-8 encoding.
        Dim sw As New StreamWriter("Utf8File.txt", False, System.Text.Encoding.UTF8)
        sw.Write(chrArray)
        sr.Close()
        sw.Close()
 
To make a ASCII file into UTF-8 String
 
        ' Set up a stream reader to read the ASCII text file
        Dim sr As New StreamReader("AsciiFile.txt", Encoding.ASCII)
        ' Get input file into UTF-8 Byte Array
        Dim byteArray() As Byte = Encoding.UTF8.GetBytes(sr.ReadToEnd())
        ' Convert Byte array to UTF-8 String
        Dim utf8Str As String = Encoding.UTF8.GetString(byteArray)

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Expert Comment

by:VBRocks
ID: 21803702
Just as a note, when create a new instance of a streamreader or streamwriter, it uses UTF-8 encoding by default.

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