if you want to check a leagth of you character array then simply write this..
char test = 'a';
int i = ((string)(test.ToString())).Length;
char[] test = new char[3];
test[0] = 'a';
test[1] = 'b';
test[2] = 'c';
int l = test.Length;
or any thing else then please show your code, so it is clear that what you actually want...