未登录时使用startupscript的DNN错误

Question

我正在尝试在DNN中执行代码。

ScriptManager.RegisterStartupScript(this, GetType(), "showalert", "ShowBAP('Grinder', '" + a + "');", true);

当用户登录时，这很好。但是，当没有用户登录，并且您匿名访问此页面时，将发生以下错误。(来自Telerik.Web.UI.WebRe.)

未设置错误:未设置为对象实例的Sys.WebForms.PageRequestManagerServerErrorException:对象引用。在(Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509 Function.Error.create%3%16#en0#：6)在Sys.WebForms.PageRequestManager._createPageRequestManagerServerError (Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509%3aed16cbdc:15) at Sys.WebForms.PageRequestManager._parseDelta (Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509%3aed16cbdc:15) at Sys.WebForms.PageRequestManager._onFormSubmitCompleted (Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509%3aed16cbdc:15)在阵列。(Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509%3aed16cbdc:6)在Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509%3aed16cbdc:6在(Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-4c99-b077-b4b8ed4e8c55% Sys.Net.WebRequest.completed3a16e4e7cd%3af7645509%3 aed16cbdc:6)在(Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a0506169f-fccc-46f8-a5ec-5e7be35dfbdd%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a636548d2-ff28-上4c99-b077-b4b8ed4e8c55%3a16e4e7cd%3af7645509%3aed16cbdc:6)

我不知道问题是什么，有什么建议吗？

Answer 1

我发现了我的问题，在被认证之前我打电话给了一个用户控制器。抛出了一个错误。