EventAttribute.Opcode Property

Definition

Namespace:

System.Diagnostics.Tracing

Assembly:

System.Diagnostics.Tracing.dll

Source:

EventSource.cs

Gets or sets the operation code for the event.

public:
 property System::Diagnostics::Tracing::EventOpcode Opcode { System::Diagnostics::Tracing::EventOpcode get(); void set(System::Diagnostics::Tracing::EventOpcode value); };

public System.Diagnostics.Tracing.EventOpcode Opcode { get; set; }

member this.Opcode : System.Diagnostics.Tracing.EventOpcode with get, set

Public Property Opcode As EventOpcode

Property Value

EventOpcode

One of the enumeration values that specifies the operation code.

Examples

The following example shows how to use the Opcode property to specify operation codes. This code example is part of a larger example provided for the EventSource class.

[Event(4, Opcode = EventOpcode.Stop, Task = Tasks.Page, Keywords = Keywords.Page, Level = EventLevel.Informational)]
public void PageStop(int ID) { if (IsEnabled()) WriteEvent(4, ID); }

<[Event](4, Opcode:=EventOpcode.Stop, Task:=Tasks.Page, Keywords:=Keywords.Page, Level:=EventLevel.Informational)> _
Public Sub PageStop(ByVal ID As Integer)
    If IsEnabled() Then
        WriteEvent(4, ID)
    End If
End Sub

[Event(5, Opcode = EventOpcode.Start, Task = Tasks.DBQuery, Keywords = Keywords.DataBase, Level = EventLevel.Informational)]
public void DBQueryStart(string sqlQuery) { WriteEvent(5, sqlQuery); }

<[Event](5, Opcode:=EventOpcode.Start, Task:=Tasks.DBQuery, Keywords:=Keywords.DataBase, Level:=EventLevel.Informational)> _
Public Sub DBQueryStart(ByVal sqlQuery As String)
    WriteEvent(5, sqlQuery)
End Sub

[Event(6, Opcode = EventOpcode.Stop, Task = Tasks.DBQuery, Keywords = Keywords.DataBase, Level = EventLevel.Informational)]
public void DBQueryStop() { WriteEvent(6); }

<[Event](6, Opcode:=EventOpcode.Stop, Task:=Tasks.DBQuery, Keywords:=Keywords.DataBase, Level:=EventLevel.Informational)> _
Public Sub DBQueryStop()
    WriteEvent(6)
End Sub