I am trying to execute code in DNN.
ScriptManager.RegisterStartupScript(this, GetType(), "showalert", "ShowBAP('Grinder', '" + a + "');", true);
When a user is logged in, this works fine. However, when there is no user logged in, and you access this page anonymously, the following error gets occurs. (from Telerik.Web.UI.WebRe...)
Uncaught Error: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object. at Function.Error.create (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) at 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) at Array. (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) at 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 at Sys.Net.WebRequest.completed (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) at XMLHttpRequest._onReadyStateChange (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)
I am not sure what the problem is, any suggestions?
I figured out my issue, I was calling a user controller before being authenticated. which was throwing an error.