Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] UI (user interface) uint type ulong type UML (Unified Modeling Language) unassigned variables C and C++ programmers note unboxing types unchecked (arithmetic check off) operator unconditional branching 2nd Unicode Unified Modeling Language [See UML] Uniform Resource Identifier (URI) uninitialized variables Unload( ) method (AppDomain) unsafe keyword unsafe modifier 2nd unwinding the call stack Unwrap( ) method (ObjectHandle) updating the database (web services client) URI (Uniform Resource Identifier) 2nd user configuration information user interface (UI) user-defined types serialization ushort type using directive (in code examples) using statement 2nd 3rd assembly attributes after |