Question

I was trying to Validate characters (the extended ones) and i see that in various PC’s they have in deferent places the extended characters. I meane we are not see the same ASCII code number for a certain character (not in Latins).
Now My issue is what i have to do when my program starts to use always a certain ASCII code table?
For extended character of course.

Answer 1

This issue generally relates (since .NET strings are UTF-16) only to reading and writing text files. In which case, just use Encoding.GetEncoding(codePage) to choose the appropriate encoding, and use this when access any text files. All standard inbuilt text/file utility operations will take an encoding, for example:

string contents = File.ReadAllText("foo.txt", encoding);