Friday, June 19, 2009

C# How to convert byte arry to string

How to a byte array to a string? The solution is using the 'GetString()' method from the ASCIIEncoding.ASCII object. Be carrefull with this method, it may cause problems if you try to convert something other than English, such as Chinese and other asian languages. In this case, you have to use specific ASCII encoding for that language.
For example, you probably want to use System.Text.Encoding.GetEncoding(1251).GetString(b);
Here, '1251' stands for English. You can choose your own codepage for Encoding or Decoding.

byte[] data = ... ; //whatever it is here
string text1 = System.Text.ASCIIEncoding.ASCII.GetString(data);//Let the ASCIIEncoding handle the convertion
string text2 = System.Text.Encoding.GetEncoding(1251).GetString(data);// 1251 stands for English
string text3 = System.Text.Encoding.GetEncoding(28591).GetString(data);// 28591 stands for Latin
string text4 = System.Text.Encoding.GetEncoding("GB18030").GetString(data);// "GB18030" stands for Simplified Chinese

Thursday, June 11, 2009

C# How to beep from your computer

How to make a beep sound from your computer?
Although you can use any sound library to work for you, there is a simple way to make just a beep sound. This becomes useful especially when you are running a program for a long time and you want to be notified when any certain condition reaches.
Thanks to Microsoft, we can achieve this in one line of code with the build-in methods.

Console.Beep();//No parameter
Console.Beep(250, 250);//Parameter: int frequency, int duration



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