EventAttribute.Keywords Proprietà

Definizione

Spazio dei nomi:

System.Diagnostics.Tracing

Assembly:

System.Diagnostics.Tracing.dll

Origine:

EventSource.cs

Ottiene o imposta le parole chiave per l'evento.

public:
 property System::Diagnostics::Tracing::EventKeywords Keywords { System::Diagnostics::Tracing::EventKeywords get(); void set(System::Diagnostics::Tracing::EventKeywords value); };

public System.Diagnostics.Tracing.EventKeywords Keywords { get; set; }

member this.Keywords : System.Diagnostics.Tracing.EventKeywords with get, set

Public Property Keywords As EventKeywords

Valore della proprietà

EventKeywords

Combinazione bit per bit dei valori dell'enumerazione.

Esempio

Nell'esempio seguente viene illustrato come usare la Keywords proprietà per definire parole chiave di evento. Questo esempio di codice fa parte di un esempio più ampio fornito per la EventSource classe .

public static class Keywords
{
    public const EventKeywords Page = (EventKeywords)1;
    public const EventKeywords DataBase = (EventKeywords)2;
    public const EventKeywords Diagnostic = (EventKeywords)4;
    public const EventKeywords Perf = (EventKeywords)8;
}

Public Class Keywords
    Public Const Page As EventKeywords = CType(1, EventKeywords)
    Public Const DataBase As EventKeywords = CType(2, EventKeywords)
    Public Const Diagnostic As EventKeywords = CType(4, EventKeywords)
    Public Const Perf As EventKeywords = CType(8, EventKeywords)
End Class

[Event(1, Message = "Application Failure: {0}", Level = EventLevel.Error, Keywords = Keywords.Diagnostic)]
public void Failure(string message) { WriteEvent(1, message); }

<[Event](1, Message:="Application Failure: {0}", Level:=EventLevel.Error, Keywords:=Keywords.Diagnostic)> _
Public Sub Failure(ByVal message As String)
    WriteEvent(1, message)
End Sub

[Event(2, Message = "Starting up.", Keywords = Keywords.Perf, Level = EventLevel.Informational)]
public void Startup() { WriteEvent(2); }

<[Event](2, Message:="Starting up.", Keywords:=Keywords.Perf, Level:=EventLevel.Informational)> _
Public Sub Startup()
    WriteEvent(2)
End Sub

[Event(3, Message = "loading page {1} activityID={0}", Opcode = EventOpcode.Start,
    Task = Tasks.Page, Keywords = Keywords.Page, Level = EventLevel.Informational)]
public void PageStart(int ID, string url) { if (IsEnabled()) WriteEvent(3, ID, url); }

<[Event](3, Message:="loading page {1} activityID={0}", Opcode:=EventOpcode.Start, Task:=Tasks.Page, Keywords:=Keywords.Page, Level:=EventLevel.Informational)> _
Public Sub PageStart(ByVal ID As Integer, ByVal url As String)
    If IsEnabled() Then
        WriteEvent(3, ID, url)
    End If
End Sub