System.Diagnostics namespaces

System.Diagnostics and its child namespaces (System.Diagnostics.CodeAnalysis, System.Diagnostics.Contracts, and System.Diagnostics.Tracing) contain types that enable you to interact with system processes, event logs, and performance counters.

This topic displays the types in the System.Diagnostics namespaces that are included in the .NET for Windows Store apps. Note that the .NET for Windows Store apps does not include all the members of each type. For information about individual types, see the linked topics. The documentation for a type indicates which members are included in the .NET for Windows Store apps.

System.Diagnostics namespace

Types supported in the .NET for Windows Store apps	Description
ConditionalAttribute	Indicates to compilers that a method call or attribute should be ignored unless a specified conditional compilation symbol is defined.
Debug	Provides a set of methods and properties that help debug your code. This class cannot be inherited.
DebuggableAttribute	Modifies code generation for runtime just-in-time (JIT) debugging. This class cannot be inherited.
DebuggableAttribute.DebuggingModes	Specifies the debugging mode for the just-in-time (JIT) compiler.
Debugger	Enables communication with a debugger. This class cannot be inherited.
DebuggerBrowsableAttribute	Determines if and how a member is displayed in the debugger variable windows. This class cannot be inherited.
DebuggerBrowsableState	Provides display instructions for the debugger.
DebuggerDisplayAttribute	Determines how a class or field is displayed in the debugger variable windows.
DebuggerHiddenAttribute	Specifies the DebuggerHiddenAttribute. This class cannot be inherited.
DebuggerNonUserCodeAttribute	Identifies a type or member that is not part of the user code for an application.
DebuggerStepThroughAttribute	Instructs the debugger to step through the code instead of stepping into the code. This class cannot be inherited.
DebuggerTypeProxyAttribute	Specifies the display proxy for a type.
Stopwatch	Provides a set of methods and properties that you can use to accurately measure elapsed time.

System.Diagnostics.CodeAnalysis namespace

Types supported in the .NET for Windows Store apps	Description
SuppressMessageAttribute	Suppresses reporting of a specific static analysis tool rule violation, allowing multiple suppressions on a single code artifact.

System.Diagnostics.Contracts namespace

Types supported in the .NET for Windows Store apps	Description
Contract	Contains static methods for representing program contracts such as preconditions, postconditions, and object invariants.
ContractAbbreviatorAttribute	Enables defining abbreviations for contracts which can be used in place of the full contract syntax.
ContractArgumentValidatorAttribute	Enables factoring legacy if-then-throw code into separate methods for reuse and full control over thrown exceptions and arguments.
ContractClassAttribute	Specifies that a separate type contains the code contracts for this type.
ContractClassForAttribute	Specifies that a class is a contract for a type.
ContractFailedEventArgs	Provides methods and data for the ContractFailed event.
ContractFailureKind	Specifies the type of contract that failed.
ContractInvariantMethodAttribute	Marks a method as being the invariant method for a class.
ContractOptionAttribute	Allows setting contract and tool options at assembly, type, or method granularity.
ContractPublicPropertyNameAttribute	Specifies that a field can be used in method contracts when the field has less visibility than the method.
ContractReferenceAssemblyAttribute	Specifies that an assembly is a reference assembly that contains contracts.
ContractRuntimeIgnoredAttribute	Identifies a member that has no run-time behavior.
ContractVerificationAttribute	Instructs analysis tools to assume the correctness of an assembly, type, or member without performing static verification.
PureAttribute	Indicates that a type or method is pure, that is, it does not make any visible state changes.

System.Diagnostics.Tracing namespace

Types supported in the .NET for Windows Store apps	Description
EventAttribute	Enables you to specify additional event schema information for an event.
EventCommand	Describes the command passed to the OnEventCommand callback.
EventCommandEventArgs	Provides the arguments for the OnEventCommand callback.
EventKeywords	Defines the standard keywords that apply to events.
EventLevel	Identifies the level of an event.
EventListener	Provides methods for enabling and disabling events from event sources.
EventOpcode	Defines the standard opcodes that are attached to events by the event source.
EventSource	Provides the ability to create events for event tracing.
EventSource.EventData	Provides the event data for creating fast WriteEvent overloads using the WriteEventCore method.
EventSourceAttribute	Allows the event tracing for Windows (ETW) name to be defined independently of the name of the event source class.
EventSourceException	The exception that is thrown when an error occurs during event tracing for Windows (ETW).
EventTask	Defines the tasks that apply to events.
EventWrittenEventArgs	Provides data for the OnEventWritten callback.
NonEventAttribute	Identifies a method not generating an event.

See Also

Concepts

.NET for Windows Store apps APIs