Specifies the levels of trace messages filtered by the source switch and event type filter.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Assembly: System (in System.dll)
|Allows the Stop, Start, Suspend, Transfer, and Resume events through.|
|Allows all events through.|
|Allows only Critical events through.|
|Allows Critical and Error events through.|
|Allows Critical, Error, Warning, and Information events through.|
|Does not allow any events through.|
|Allows Critical, Error, Warning, Information, and Verbose events through.|
|Allows Critical, Error, and Warning events through.|
The source levels identify the TraceEventType events that are to be traced. The SourceSwitch class uses the 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 enumeration to determine whether a trace listener should emit a trace.