book

Expert C# 5.0: with the .NET 4.5 Framework

by Mohammad Rahman

December 2012

Intermediate to advanced

612 pages

14h 4m

English

Apress

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Square Number Using the C#Compilation of a C# ProgramUnderstanding the C# LanguageSummary
Memory in .NET ApplicationsThe StackThe HeapValue and Reference TypesInstantiating an ObjectBoxing and UnboxingGarbage CollectionSummary
ParameterMethod State Description TableValue TypeReference TypeDefault Parameter ValueSummary
Instance and Static Method with this KeywordAnonymous MethodExtension MethodSummary

Automatic Propertyvar Implicitly Typed Local VariableAnonymous TypeSummary
Enum and .NETHow to Get Names and Values from the EnumDetermining Whether an Item Is DefinedParsingSummary
Understanding DelegatesFunc and ActionSummary
Understanding the EventDesigning a Type with the EventBehind the ScenesSummary
State MachineForeach StatementIteratorsSummary
String in .NETInstantiation of a String ObjectString and ChainingStrings Are ImmutableString ConcatenationStringBuilderSummary
Collections in .NETArray ClassListArrayListStackQueueHashtableDictionarySummary
First Look into Linq in .NETExtension MethodLambda Expressions and Expression Trees in LinqDeferred Execution in LinqQuery Methods in LinqSummary
What Is an Exception?Exception and .NET FrameworkException Handling in .NETProtected BlockThrow and RethrowStack OverwriteHow the CLR Matches Exception in RuntimeUsing StatementSummary
Synchronous and Asynchronous ProgrammingAsynchronous Programming Using TaskExecutionContext to Capture the ContextAsynchronous Programming Using Async and AwaitAsync Behind the ScenesTest CasesTask-Based Asynchronous PatternSummary
Windbg and Son of Strike Debugging Extension DLLIntermediate Language DisassemblerThe .NET Reflector: Source Code ExplorerCLR Profiler: A Memory ProfilerSummary

Content preview from Expert C# 5.0: with the .NET 4.5 Framework

CHAPTER 9 Foreach and Iterator

This chapter will discuss the foreach statement and iterators block. The foreach statement is used to iterate an array or an object collection that implements the System.Collections.IEnumerable or System.Collections.Generic.IEnumerable<T> interface. The iterators block is also used to iterate through an array or an object collection based on the state machine generated automatically by the C# compiler.

State Machine

Throughout this chapter, you will explore how the C# compiler generates the state machine for an iterator block, what the states are that the state machine contains, and how the state transition takes ...