Generating Auto ID on Button Click

I think you should write some similar function which is accepting argument IsFacutlty or IsStudent. Once you know whether its faculty or student then you have LIBSTDKDC or LIBSTFKDC string, now you need to concatenate the number as per course code,semester code and additional sequence number.

public string GenerateUniqueNumbers(Boolean IsStudent,Boolean IsFaculty)

{

}

I hope it might be helpful for you