StreamReader and NULL characters : DOTNET
This is a discussion on StreamReader and NULL characters within the DOTNET forums in Framework and Interface Programming category; Duh! I should have thought about that. The first NULL char will destroy display at that point. -- Gregory A. Beamer MVP, MCP: +I, SE, SD, DBA Subscribe to my blog http://gregorybeamer.spaces.live.com/lists/feed.rss or just read it: http://gregorybeamer.spaces.live.com/ ************************************************* | Think outside the box! | ************************************************* <brian.gabriel @ gmail.com> wrote in message news:25613de2-2c3d-4898-8f5d-8073d6ab418d @ e60g2000hsh.googlegroups.com... Thanks Jon! After seeing your example I created a much small text file with the offending characters and was able to better debug the issue. The issue is not with the StreamReader, but with displaying the results in a text box. A simple Replace removed the ...
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#11
03-25-2008, 07:19 PM
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 Re: StreamReader and NULL characters I should have thought about that. The first NULL char will destroy display at that point. -- Gregory A. Beamer MVP, MCP: +I, SE, SD, DBA Subscribe to my blog http://gregorybeamer.spaces.live.com/lists/feed.rss or just read it: http://gregorybeamer.spaces.live.com/ ************************************************* | Think outside the box! | ************************************************* <brian.gabriel@gmail.com> wrote in message news:25613de2-2c3d-4898-8f5d-8073d6ab418d@e60g2000hsh.googlegroups.com... Thanks Jon! After seeing your example I created a much small text file with the offending characters and was able to better debug the issue. The issue is not with the StreamReader, but with displaying the results in a text box. A simple Replace removed the offending characters and everything is displaying properly. Again thanks for the help. Brian brian.gabriel@gmail.com On Mar 24, 9:20 am, Jon Skeet [C# MVP] <sk...@pobox.com> wrote: > Could you give an example of this, bearing mind my earlier example? > Here's another example using the OP's sample data - again, it doesn't > show StreamReader failing with null characters: > > using System; > using System.IO; > using System.Text; > > class Test > { > static void Main(string[] args) > { > // A B > byte[] data = { 65, 66, 0x0d, 0x0a, 0, > 0x0c, 0x0d, 0x0a, 67, 68}; > > using (MemoryStream stream = new MemoryStream(data)) > using (StreamReader reader = new StreamReader(stream)) > { > string line; > while ((line=reader.ReadLine()) != null) > { > Console.WriteLine ("Next line:"); > for (int i=0; i < line.Length; i++) > { > Console.WriteLine("{0}: {1}", i, > line[i]=='\0' > ? "NUL" > : line[i].ToString()); > } > } > } > } > > } > > A method I employed, at one time, for EBCDIC, is running everything > > binary > > until it needed to be text. Much more efficient to stay in the binary > > world, > > from a perf perspective, but also harder to program, as we do not think > > in > > 0s and 1s. :-) > > It also means that *you* need to worry about all the nasty issues of > text handling rather than getting the framework to do it. > > -- > Jon Skeet - <sk...@pobox.com>http://www.pobox.com/~skeet > Blog:http://www.msmvps.com/jon.skeet > World class .NET training in the UK:http://iterativetraining.co.uk |
