Script controls may not be registered before PreRender.

Tech 9 Points 51 Posts

Report Abuse Script controls may not be registered before PreRender. 2/20/2017 10:27:38 PM Script controls may not be registered before PreRender. An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  [InvalidOperationException: Script controls may not be registered before PreRender.]    System.Web.UI.ScriptControlManager.RegisterScriptControl(TScriptControl scriptControl) +348745    System.Web.UI.UpdateProgress.OnPreRender(EventArgs e) +44    System.Web.UI.Control.PreRenderRecursiveInternal() +80    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842V

Tech 9 Points 51 Posts

Report Abuse Re: Script controls may not be registered before PreRender. 2/20/2017 10:29:16 PM one of the reason for above error having below method in .cs code in ASP.NET page.  Dispose(); If you get that error, make sure not Dispose() method call in page.