How can I compare them and print result just Uik or uik. not twice Uuik. my program understand such as different values(Uu). Is there any function or something like that? thank you a lot
In order to make that work, you will need to change the C# project to the highest dot net level and add a new C++ project as a Class Library.
You will then need to add a refrence from inside the C# project to the C++ project, add the necessary code and compile.
Yes, it is ok. the problem is how to display just one letter "u" or "U"? thank for your time
Interesting that you are answering a quoted phrase that doesn't exist now and his post doesn't show as edited.
Since his replaced text fully answers your question, you should either mark this thread as solved or explain why his answer doesn't solve the solution.
His solution is case insensitive, the way you stated the problem makes it look like you really wanted that, not one that is case sensitive which is the default behaviour. If you do want case sensitive, remove the .ToLower() function.