The fields of the Level class are listed below. For a complete list of Level class members, see the Level Members topic.
|   Alert | The Alert level designates very severe error events. Take immediate action, alerts. | 
|   All | The All level designates the lowest level possible. | 
|   Critical | The Critical level designates very severe error events. Critical condition, critical. | 
|   Debug | The Debug level designates fine-grained informational events that are most useful to debug an application. | 
|   Emergency | The Emergency level designates very severe error events. System unusable, emergencies. | 
|   Error | The Error level designates error events that might still allow the application to continue running. | 
|   Fatal | The Fatal level designates very severe error events that will presumably lead the application to abort. | 
|   Fine | The Fine level designates fine-grained informational events that are most useful to debug an application. | 
|   Finer | The Finer level designates fine-grained informational events that are most useful to debug an application. | 
|   Finest | The Finest level designates fine-grained informational events that are most useful to debug an application. | 
|   Info | The Info level designates informational messages that highlight the progress of the application at coarse-grained level. | 
|   Notice | The Notice level designates informational messages that highlight the progress of the application at the highest level. | 
|   Off | The Off level designates a higher level than all the rest. | 
|   Severe | The Severe level designates very severe error events. | 
|   Trace | The Trace level designates fine-grained informational events that are most useful to debug an application. | 
|   Verbose | The Verbose level designates fine-grained informational events that are most useful to debug an application. | 
|   Warn | The Warn level designates potentially harmful situations. | 
Level Class | log4net.Core Namespace