Hi,
We have done the following:
In Appliction_Error and in ScriptManager_AsyncPostBackError, we handle and logs the exception.
Then we redirect to an error page.
When not using radcompression, this works for all cases, but when using radcompression, the redirect doesn't happen when an exception occurs in Page_PreInit. The exception must also be in an Async callback, normal postbacks works as expected.
Default.aspx:
Default.aspx.vb:
Error.aspx:
web.config:
Global.asax.vb:
When hitting the Error-button, I don't get to the error page, but when hitting the ErrorNoUpdatePanel I do get to the error page.
If turning off RadCompression both cases works.
Regards
Caesar
We have done the following:
In Appliction_Error and in ScriptManager_AsyncPostBackError, we handle and logs the exception.
Then we redirect to an error page.
When not using radcompression, this works for all cases, but when using radcompression, the redirect doesn't happen when an exception occurs in Page_PreInit. The exception must also be in an Async callback, normal postbacks works as expected.
Default.aspx:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="default.aspx.vb" Inherits="WebApplication8._default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> <asp:ScriptManager ID="sm" runat="server"></asp:ScriptManager> <asp:UpdatePanel ID="upError" runat="server" ChildrenAsTriggers="true" UpdateMode="Conditional"> <ContentTemplate> <asp:Button ID="btnError" runat="server" Text="Error" /> </ContentTemplate> </asp:UpdatePanel> <asp:Button ID="btnErrorNoUpdatePanel" runat="server" Text="ErrorNoUpdatePanel" /> </div> </form></body></html>Default.aspx.vb:
Public Class _default Inherits System.Web.UI.Page Private Sub _default_PreInit(sender As Object, e As System.EventArgs) Handles Me.PreInit If Me.IsPostBack Then Throw New Exception("Test") End If End Sub Private Sub sm_AsyncPostBackError(sender As Object, e As System.Web.UI.AsyncPostBackErrorEventArgs) Handles sm.AsyncPostBackError Server.ClearError() Response.Redirect("Error.aspx") End SubEnd ClassError.aspx:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Error.aspx.vb" Inherits="WebApplication8._Error" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> An error occured! </div> </form></body></html>web.config:
<?xml version="1.0"?><configuration> <system.web> <customErrors mode="Off"/> <compilation debug="true" strict="false" explicit="true" targetFramework="4.0" /> <httpModules> <add name="RadCompression" type="Telerik.Web.UI.RadCompression"/> </httpModules> </system.web> <system.webServer> <modules runAllManagedModulesForAllRequests="true"> <remove name="RadCompression" /> <add name="RadCompression" preCondition="managedHandler" type="Telerik.Web.UI.RadCompression"/> </modules> </system.webServer></configuration>Global.asax.vb:
Imports System.Web.SessionStatePublic Class Global_asax Inherits System.Web.HttpApplication Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs) ' Fires when an error occurs Server.ClearError() Response.Redirect("Error.aspx") End SubEnd ClassWhen hitting the Error-button, I don't get to the error page, but when hitting the ErrorNoUpdatePanel I do get to the error page.
If turning off RadCompression both cases works.
Regards
Caesar
2 Answers, 1 is accepted
0
Accepted
Hi Caesar,
Calling Response.Redirect() at such late stage causes an exception as the appropriate response header cannot be added nor changed. As a result this prevents adding the compression content-encoding header and the browser is not able to decode the response from the server. As a workaround I can suggest you to call the Redirect() in the OnError handler of the Page.
Best wishes,
Pavel
the Telerik team
Calling Response.Redirect() at such late stage causes an exception as the appropriate response header cannot be added nor changed. As a result this prevents adding the compression content-encoding header and the browser is not able to decode the response from the server. As a workaround I can suggest you to call the Redirect() in the OnError handler of the Page.
Best wishes,
Pavel
the Telerik team
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Caesar
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answered on 20 May 2011, 12:59 PM
Hi,
Thanks, that works fine for this case, still have to keep the error handling in Application_Error for other reasons (when not a page), but that is OK.
Regards
Caesar
Thanks, that works fine for this case, still have to keep the error handling in Application_Error for other reasons (when not a page), but that is OK.
Regards
Caesar