C# Language Specification

15.Delegates 435

15.1Delegate declarations 435

15.2Delegate compatibility 437

15.3Delegate instantiation 437

15.4Delegate invocation 438

16.Exceptions 441

16.1Causes of exceptions 441

16.2The System.Exception class 441

16.3How exceptions are handled 441

16.4Common Exception Classes 442

17.Attributes 443

17.1Attribute classes 443

17.1.1Attribute usage 443

17.1.2Positional and named parameters 444

17.1.3Attribute parameter types 445

17.2Attribute specification 445

17.3Attribute instances 450

17.3.1Compilation of an attribute 451

17.3.2Run-time retrieval of an attribute instance 451

17.4Reserved attributes 451

17.4.1The AttributeUsage attribute 452

17.4.2The Conditional attribute 452

17.4.2.1Conditional methods 453

17.4.2.2Conditional attribute classes 455

17.4.3The Obsolete attribute 456

17.4.4Caller info attributes 457

17.4.4.1The CallerLineNumber attribute 458

17.4.4.2The CallerFilePath attribute 458

17.4.4.3The CallerMemberName attribute 458

17.5Attributes for Interoperation 458

17.5.1Interoperation with COM and Win32 components 458

17.5.2Interoperation with other .NET languages 459

17.5.2.1The IndexerName attribute 459