U

UI elements, removing, Reasons to Use Threads

uint type, Programming Language Primitive Types

ulong type, Programming Language Primitive Types

unary operators, Operator Overload Methods

unboxing value types, Boxing and Unboxing Value Types, Boxing and Unboxing Value Types, Boxing and Unboxing Value Types

field copying and, Boxing and Unboxing Value Types

unchecked operators, Checked and Unchecked Primitive Type Operations

unhandled exceptions, Type Constructors, Trading Reliability for Productivity, Don’t Catch Everything, Unhandled Exceptions, Unhandled Exceptions, Other Async Function Features

asynchronous functions and, Other Async Function Features

FCL documentation, Unhandled Exceptions

from type constructors, Type Constructors

UnhandledExceptionFilter event, Unhandled Exceptions

Unicode characters, Examining a String’s Characters and Text Elements

Unicode code values, Characters

UnicodeCategory type, Characters

Unload method, Demo #1: Cross-AppDomain Communication Using Marshal-by-Reference, AppDomain Unloading

unloaded types, Type Constructors

unloading, Constrained Execution Regions (CERs), Demo #1: Cross-AppDomain Communication Using Marshal-by-Reference, AppDomain Unloading, Assembly Loading

AppDomains, Constrained Execution Regions (CERs), Demo #1: Cross-AppDomain Communication Using Marshal-by-Reference, AppDomain Unloading

assemblies, Assembly Loading

unmanaged C++, Const-ness

unmanaged callback functions, Delegates

unmanaged code, Executing Your Assembly’s Code, The Common Language Specification

CLR interoperability with, The Common Language Specification

performance of, vs. managed, Executing Your Assembly’s Code

UnobservedTaskException event, Waiting for a Task to Complete and Getting Its Result

Unregister method, Designing a Type That Listens for an Event

unsafe code, Unsafe Code, Unsafe Code

unsafe modifier, Array Internals

UnsafeLoadFrom method, Assembly Loading

Unwrap method, Constructing an Instance of a Type

Uri type, WinRT Type System Core Concepts

URIs, WinRT, WinRT Type System Core Concepts

user-mode constructs, Primitive User-Mode and Kernel-Mode Constructs, User-Mode Constructs, Event Constructs

vs. kernel-mode constructs, Event Constructs

user-mode stacks, Thread Overhead

ushort, Programming Language Primitive Types

using directive, Namespaces and Assemblies

using directive, generic types and, Generic Type Identity

using statement, Using a Type That Wraps a Native Resource

UTF-16 encoding, Encodings: Converting Between Characters and Bytes

UTF-32 encoding, Encodings: Converting Between Characters and Bytes

UTF-7 encoding, Encodings: Converting Between Characters and Bytes

UTF-8 encoding, Encodings: Converting Between Characters and Bytes