private static char[] CharsFromList (string list)
{
// List format is very strict and enforced by the Configuration
// there must be a single char separated by commas with no trailing comma
// whitespace is allowed though and should be trimmed.
string [] pieces = list.Split (',');
char [] chars = new char [pieces.Length];
for (int i = 0; i < chars.Length; i++) {
string trimmed = pieces [i].Trim ();
if (trimmed.Length != 1) {
// This should have been caught by System.Web.Configuration
// and throw a configuration error. This is just here for sanity
throw new System.Configuration.ConfigurationErrorsException ();
}
chars [i] = trimmed [0];
}
return chars;
}
#endif
