Server Error in '/' Application.

To work properly, DevExpress components require ASPxHttpHandlerModule registered in the web.config file. For details, see: http://documentation.devexpress.com/#AspNet/CustomDocument7540

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Exception: To work properly, DevExpress components require ASPxHttpHandlerModule registered in the web.config file. For details, see: http://documentation.devexpress.com/#AspNet/CustomDocument7540

Source Error:

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.

Stack Trace:


[Exception: To work properly, DevExpress components require ASPxHttpHandlerModule registered in the web.config file. For details, see: http://documentation.devexpress.com/#AspNet/CustomDocument7540]
   DevExpress.Web.ASPxWebControl.AssertModuleRegistration() +248
   DevExpress.Web.ASPxWebControl.InitInternal() +15
   DevExpress.Web.ASPxWebControlBase.OnInit(EventArgs e) +18
   DevExpress.Web.ASPxDataWebControlBase.OnInit(EventArgs e) +13
   System.Web.UI.Control.InitRecursive(Control namingContainer) +142
   System.Web.UI.Control.InitRecursive(Control namingContainer) +318
   System.Web.UI.Control.InitRecursive(Control namingContainer) +318
   System.Web.UI.Control.InitRecursive(Control namingContainer) +318
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +416


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4676.0