如何在Asp.Net Vb上创建控制台日志

Question

我想在我的申请流程中实施控制台日志。

示例：

当客户端按下按钮文件验证时，该按钮会在event RadAsyncUpload1_FileUploaded

中触发该事件

Public Sub RadAsyncUpload1_FileUploaded(sender As Object, e As FileUploadedEventArgs)
    ListView.Items.add("Verification File Process Begin...") /* Show Message Immediately */
    verifyFile(file)
    If File.isValid Then
        ListView.Items.add("The File is Valid") /* Show Message Immediately */
    Else
        ListView.Items.add("The File is Invalid") /* Show Message Immediately */
    End If
    If File.size > limit Then
        ListView.Items.add("The Size File is Valid") /* Show Message Immediately */
    Else
        ListView.Items.add("The size File is Invalid") /* Show Message Immediately */
    End If
End Sub

我希望在面板或列表框中实时显示消息

step 1: Verification File Process Begin...
result: The File is Valid
step 2: Verification size of file
result: The Size File is Valid
....
....
step n: Verification File Process End

感谢您的帮助