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UTF8 Question

Why does (in the code below) the message should appear as "keep-alive -
keep-alive - test" but it only appears as "keep-alive - keep-alive".
That is why the last comparation (Equals) isn't getting true. Is it
from the "Convert.ToByte ('\0')" that does the comparation false?
I'm shure that the strings are identical but it gives me false. Why?

Any help is appreciated, (Possible some UTF8 compatibility issues?)
Nuno Magalhaes.

Here's the code:
*************** *************** *************** *************** ***
byte[] connectionBytes =new byte[16];
for(int i1=index+12,i2= 0;;i1++,i2++)
{
if(bytes[i1]=='\n')
{
connectionBytes[i2]=Convert.ToByte ('\0');
break;
}
connectionBytes[i2]=bytes[i1];
}
string strTemp=Encodin g.UTF8.GetStrin g(connectionByt es).ToLower();
MessageBox.Show ("keep-alive - "+strTemp+" - test");
if(Encoding.UTF 8.GetString(con nectionBytes).T oLower().Equals ("keep-alive"))keepAli ve=true;
else keepAlive=false ;

Nov 30 '05 #1
2 1049
Why does (in the code below) the message should appear as "keep-alive -
keep-alive - test" but it only appears as "keep-alive - keep-alive".
Because the MessageBox will only show the string up to the first '\0'
character.

That is why the last comparation (Equals) isn't getting true. Is it
from the "Convert.ToByte ('\0')" that does the comparation false?


Yes one string will have a null character at the end but the literal
"keep-alive" doesn't.
Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.
Nov 30 '05 #2
Thanks for the reply.
I solved the problem with a Substring(0,10) comparision.

Mattias Sjögren wrote:
Why does (in the code below) the message should appear as "keep-alive -
keep-alive - test" but it only appears as "keep-alive - keep-alive".


Because the MessageBox will only show the string up to the first '\0'
character.

That is why the last comparation (Equals) isn't getting true. Is it
from the "Convert.ToByte ('\0')" that does the comparation false?


Yes one string will have a null character at the end but the literal
"keep-alive" doesn't.
Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.


Nov 30 '05 #3

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