網頁錯誤訊息： System.Web.HttpUnhandledException: 已發生類型 'System.Web.HttpUnhandledException' 的例外狀況。 ---> System.NullReferenceException: 並未將物件參考設定為物件的執行個體 於 VSCC.FriendlyPrint.Page_Load(Object sender, EventArgs e) 於 D:\117_VSCC\VSCC\VSCC\FriendlyPrint.aspx.cs: 行 48 於 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) 於 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) 於 System.Web.UI.Control.OnLoad(EventArgs e) 於 System.Web.UI.Control.LoadRecursive() 於 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- 內部例外狀況堆疊追蹤的結尾 --- 於 System.Web.UI.Page.HandleError(Exception e) 於 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 於 System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 於 System.Web.UI.Page.ProcessRequest() 於 System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) 於 System.Web.UI.Page.ProcessRequest(HttpContext context) 於 ASP.friendlyprint_aspx.ProcessRequest(HttpContext context) 於 c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\23303ffe\ce8acd42\App_Web_a-tilvbg.4.cs: 行 0 於 System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() 於 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)