C# in Depth

378INDEXexplicit typing 43, 214, 354lambda expression parameters 234range variables 289Express editions of Visual Studio 30Expression 239–240, 326expression to initialize an object 217expression trees 238–245, 284, 325–326, 350, 358combining with IQueryProvider 327compilation 241parameters for Queryable methods 330ExpressionType 239expressive 3expressiveness 111, 122, 154, 162of C# 3 355extended type 258extending the world 270Extensible Application Markup Language(XAML) 187extension methods 10, 57, 255–274calling 259compiler discovery 261declaration 258Enumerable 285, 354extended type 258guidelines 270LINQ to XML 342Queryable 325–326restrictions 258ExtensionAttribute 261extern aliases 194, 196FF# 354factory methods 239FakeQuery 328FakeQueryProvider 328false operator 125fetching strategies 348Field 335field-like events 40fields 216backing anonymous type properties 226FIFO. See first in first outfiles, spreading a type across multiple 185FileStream 257films 236filter expressions 291filteringin SQL 321LINQ to Objects 265, 279, 290LINQ to XML 342lists 15, 236, 356Filtering. See Standard Query Operators, filteringfilters 161finalizers 108finally 92finally blocksin iterator blocks 170–172restrictions in iterator blocks 166FindAll 96, 153, 236, 356FindFirst 96FindLast 96first in first out 100First. See Standard Query Operators, FirstFirstOrDefault. See Standard Query Operators,FirstOrDefaultfixed 199fixed type variables 248FixedBufferAttribute 199FixedSize 98fixing of type parameters 250flagfor faking nullity 13to distinguish null values 115Flex 22flexibility 175, 281, 344, 348Flickr 344flow of iterator blocks 167fluent interfaces 271fluff 12, 28, 55, 219for loop 157, 159, 162, 174implicit typing 213ForEach 146, 236foreachand anonymous types 225and captured variables 159deferred execution 303implicit casting 9implicit typing 213iterator pattern 162nested collections 301over generic collections 90sequence diagrams 168, 280foreach loop 170, 173ForEach method 97foreach statement 181foreign keys 300, 316formattingcode 149LINQ to XML source code 339using delegates 355within DataTable.Select 334forward references 185Fowler, Martin 271framework 128, 352framework libraries 25, 207absence of range type 174frequency counting 66friend assemblies 201–204from clauses. See query expressions, from clausefrustration with C# 1 144Licensed to Rhona Hadida