Simple question. How to read/write from/into stream.

[John Demigor]

Hi,

I have an integer value I need to read/write as 4 bytes from/into Stream
(NetworkStream), but I cannot find ReadInt/WriteInt method in the Stream
class.
The same problem with string.

Thanks in advance

 

[Dennis Myrén]

Use the System.IO.BinaryWriter class.

 

[John Demigor]

Good hint, thanks. Now the question, how to write string in stream in ANSI
(single-byte) format?

 

[Dennis Myrén]

You should use the Write overloaded method of signature:
Write ( byte [] data, int start, int length )
To that method you should supply a byte array which you have created by
calling
System.Text.Encoding.[YOUR_PREFERRED_ENCODING].GetBytes("Your string");

So, something like:
string text = "Happy weekend!";
BinaryWriter bw...;
byte [] data = System.Text.Encoding.ASCII.GetBytes(text);
bw.Write(data, 0x0, data.Length);

 

[Jon Skeet [C# MVP]]

I have an integer value I need to read/write as 4 bytes from/into Stream
(NetworkStream), but I cannot find ReadInt/WriteInt method in the Stream
class.

Use a BinaryWriter.

The same problem with string.

Again, you can use BinaryWriter - but be careful of Write(string) as
this adds an encoded version of the string length before the string
itself. Use Encoding.GetBytes to get the bytes and write them if you
need to. Alternatively, if this is in a different stream, construct a
StreamWriter which is designed for writing text.

 

[John Demigor]

Thanks,

System.Text.Encoding.[YOUR_PREFERRED_ENCODING].GetBytes("Your string");

My preferred encoding is usually ISO-8859-1, but it would be great to use
windows system codepage.
How does it go then?

 

[Dennis Myrén]

You should look at the GetEncoding method if you want some other encoding
than
those that are predefined.
Have a look at:
http://msdn.microsoft.com/library/d...fsystemtextencodingclassgetencodingtopic2.asp

--
Regards,
Dennis JD Myrén
Oslo Kodebureau

Thanks,

System.Text.Encoding.[YOUR_PREFERRED_ENCODING].GetBytes("Your string");

My preferred encoding is usually ISO-8859-1, but it would be great to use
windows system codepage.
How does it go then?

 

[Jon Skeet [C# MVP]]

System.Text.Encoding.[YOUR_PREFERRED_ENCODING].GetBytes("Your string");

My preferred encoding is usually ISO-8859-1, but it would be great to use
windows system codepage.
How does it go then?

Use Encoding.Default - and note that it's *not* the default for things
like StreamReader if you don't specify the encoding. It should really
be called something like Encoding.WindowsSystemDefault.