This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.Namespace: System.Diagnostics
Assembly: System (in system.dll)
|ActivityTracing||Allows the Stop, Start, Suspend, Transfer, and Resume events through.|
|All||Allows all events through.|
|Critical||Allows only Critical events through.|
|Error||Allows Critical and Error events through.|
|Information||Allows Critical, Error, Warning, and Information events through.|
|Off||Does not allow any events through.|
|Verbose||Allows Critical, Error, Warning, Information, and Verbose events through.|
|Warning||Allows Critical, Error, and Warning events through.|
The source levels identify the TraceEventType events that are to be traced. The SourceSwitch class uses the SourceLevels enumeration to define the event level of the trace message to use for filtering messages to send to the trace listener.
The EventTypeFilter class uses the SourceLevels enumeration to determine whether a trace listener should emit a trace.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.