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Encoding question
Message
De
11/11/2013 09:05:08
 
 
Information générale
Forum:
ASP.NET
Catégorie:
Autre
Versions des environnements
Environment:
VB 9.0
OS:
Windows Server 2012
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Web
Divers
Thread ID:
01587700
Message ID:
01587735
Vues:
25
>>>Why does C# char = (char)134 return different value character than VFP char(134)?
>>>
>>>UPDATE. I understand why but have not found the way to resolve my issue. I need to get a character (in .NET program) (for number 134 or higher) that match exactly the character that VFP gets when using char(134) and such.
>>>Any suggestion, please let me know. Except I cannot change the VFP code.
>>
>>
>>Since .net uses UTF-16 to store a char ( one char = 2 bytes ), you do not encode chars
>>
>>When chars are stored to a file, they are first converted to a sequence of bytes (1, 2, 3 or 4 depending on the char and the encoding utf8, utf16, single byte char set, double byte chars set) and the byte sequence is written to the file
>>This means that a file does not contain chars, but bytes
>>
>>You convert the chars to a byte array first, using an encoding, then encode the byte array
>>
>>Supposing your code page in vfp is 1252
>>
>>
>>		internal static void Go()
>>		{
>>			// from byte to string
>>			byte[] src = new byte[] { 134 };
>>			string p = Encoding.GetEncoding(1252).GetString(src);
>>
>>			// from string to bytes
>>			string s = "†"; // chr(134) in 1252 codepage
>>
>>			byte[] bytes = Encoding.GetEncoding(1252).GetBytes(s);
>>			
>>		}
>>
>
>I re-read your code example and I see the solution there for me. Thank you!

Good because I did not understand your first reply
Gregory
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