EventDefinition Class
Definition
Important
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Defines metadata for an event with no parameters and a cached delegate to log the event with reduced allocations.
public class EventDefinition : Microsoft.EntityFrameworkCore.Diagnostics.EventDefinitionBase
type EventDefinition = class
inherit EventDefinitionBase
Public Class EventDefinition
Inherits EventDefinitionBase
- Inheritance
Remarks
See Implementation of database providers and extensions for more information and examples.
Constructors
EventDefinition(EventId, LogLevel, Action<ILogger,Exception>) |
Creates an event definition instance. |
EventDefinition(EventId, LogLevel, String, Action<ILogger,Exception>) |
Creates an event definition instance. |
EventDefinition(ILoggingOptions, EventId, LogLevel, String, Func<LogLevel,Action<ILogger,Exception>>) |
Creates an event definition instance. |
Properties
EventId |
The EventId. (Inherited from EventDefinitionBase) |
EventIdCode |
A string representing the code that should be passed to ConfigureWarnings(Action<WarningsConfigurationBuilder>) to suppress this event as an error. (Inherited from EventDefinitionBase) |
Level |
The LogLevel at which the event will be logged. (Inherited from EventDefinitionBase) |
WarningBehavior |
The configured WarningBehavior. (Inherited from EventDefinitionBase) |
Methods
GenerateMessage() |
Generates the message that would be logged without logging it. Typically used for throwing an exception in warning-as-error cases. |
GenerateMessage(Exception) |
Generates the message that would be logged without logging it. Typically used for throwing an exception in warning-as-error cases. |
GetLogBehavior<TLoggerCategory>(IDiagnosticsLogger<TLoggerCategory>) |
Gets the log behavior for this event. This determines whether it should be logged, thrown as an exception or ignored. (Inherited from EventDefinitionBase) |
Log<TLoggerCategory>(IDiagnosticsLogger<TLoggerCategory>, Exception) |
Obsolete.
Logs the event, or throws if the event has been configured to be treated as an error. |
Log<TLoggerCategory>(IDiagnosticsLogger<TLoggerCategory>, WarningBehavior, Exception) |
Logs the event, or throws if the event has been configured to be treated as an error. |
WarningAsError(String) |
Returns a warning-as-error exception wrapping the given message for this event. (Inherited from EventDefinitionBase) |
Applies to
Entity Framework