AsyncFileUpload1.OnClientUploadComplete = New EventHandler(Of AsyncFileUploadEventArgs)(**AsyncFileUpload1_UploadedComplete**)
AsyncFileUpload1.OnClientUploadError = New EventHandler(Of AsyncFileUploadEventArgs)(**AsyncFileUpload1_UploadedFileError**)
收到如下配额错误：
“ Delegate 'System.EventHandler(Of AjaxControlToolkit.AsyncFileUploadEventArgs)' 需要一个 'AddressOf' 表达式或 lambda 表达式作为其构造函数的唯一参数。”