EventAttribute.Opcode 属性

定义

命名空间:

System.Diagnostics.Tracing

程序集:

netstandard.dll, System.Diagnostics.Tracing.dll

Source:

EventSource.cs

获取或设置事件的操作代码。

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

属性值

EventOpcode

指定操作代码的枚举值之一。

示例

以下示例演示如何使用 Opcode 属性指定操作代码。 此代码示例是为 EventSource 类提供的大型示例的一部分。

[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