Can I find out if string to ANSI conversion will result in loss of data?

Question

Say, when I convert a string into a byte array using single-byte encoding, some characters will be replaced with '?':

string strData="©";
byte[] bytesData = Encoding.ASCII.GetBytes(strData);

Is there any way to find out if a string will lose some of it's data if I convert it to ANSI?

PS. I'm not inquiring about benefits of Unicode encodings, such as UTF-8.

Answer 1

How about?

Encoding.ASCII.GetString(Encoding.ASCII.GetBytes(strData)) == strData;

Answer 2

If you instantiate your own Encoder you can specify an EncoderFallback, one of the pre-defined such objects is EncoderFallback.ExceptionFallback which will:

throws an exception when an input character cannot be encoded