My.Application.Log Object

Provides a property and methods to write event and exception information to the application's log listeners.

Remarks

The My.Application.Log object provides a straightforward entry point from which to access the .NET Framework's logging services. The WriteEntry and WriteException methods write messages to the application's log listeners. The listeners can be configured by the application's configuration file. For more information, see Walkthrough: Changing Where My.Application.Log Writes Information and Working with Application Logs in Visual Basic.

The My.Application.Log object is available only for client applications. For Web applications, use My.Log. For more information, see My.Log Object.

Tasks

The following table lists examples of tasks that involve the My.Application.Log object.

To	See
Write event information to the application's log listeners	How to: Write Log Messages
Write exception information to the application's log listeners	How to: Log Exceptions in Visual Basic
Determine where My.Application.Log writes information	Walkthrough: Determining Where My.Application.Log Writes Information

Example

This example shows how to use the My.Application.Log.WriteEntry method to log tracing information. For more information, see How to: Write Log Messages.

Public Sub TracingTest(ByVal fileName As String)
    My.Application.Log.WriteEntry( _
        "Entering TracingTest with argument " & _
        fileName & ".")
    ' Code to trace goes here.
    My.Application.Log.WriteEntry( _
        "Exiting TracingTest with argument " & _
        fileName & ".")
End Sub

Requirements

Namespace:Microsoft.VisualBasic.Logging

Class:Log

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

Availability by Project Type

Project type	Available
Windows Application	Yes
Class Library	Yes
Console Application	Yes
Windows Control Library	Yes
Web Control Library	No
Windows Service	Yes
Web Site	No

See Also

Reference

My.Application.Log Object Members

My.Application Object