Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack

Question

I am getting the error      Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack    I have redirected to a new page in repeater s itemcommand event  The error occurs at the line   string url      Galleries AlbumImageList aspx UId     this UserId ToString       amp AlbumId     e CommandArgument ToString    Response Redirect url     Can anybody please help me  Is anything wrong there  The  COMPlusExceptionCode is -532459699

User · Answer

In a bug I was investigating there was a Response.Redirect() and it was executing in an unexpected location (read: inappropriate location - inside a member property getter method).

If you're debugging a problem and experience the "Unable to evaluate expression..." exception:

Perform a search for Response.Redirect() and either make the second parameter endResponse = false, or
Temporarily disable the redirect call.

This was frustrating as it would appear to execute the Redirect call before the "step through" on the debugger had reached that location.

User · Answer

This problem may be a result when you have a razor page in mvc with a model that has some validation rules  When you post from a form and you forget to display validation errors on some field  then this message might come up  Speculation  this could be if the method you are posting to is different and used by other sources or resides in a different place than the method serving the original request  So because it s different  it can t return to the original page to display or handle the errors because the excecution and model state is not the same  something like that   It can be slightly difficult to discover  but easy mistake to do  Make sure your recieving method actually validates all possible ways to post to it  for instance  even if you have serverside validation that actually makes it impossible to write in the form a string that is bigger than the max allowed by your validation  there could be other ways and sources that post to the recieving method

User · Answer

use this code solve the problem   string path   AppDomain CurrentDomain BaseDirectory ToString      Uploadfile      fileName  System IO FileStream fs   new System IO FileStream path  System IO FileMode Open  System IO FileAccess Read   byte   bt   new byte fs Length   fs Read bt  0   int fs Length   fs Close    Response ContentType    application x-unknown octet-stream   Response AppendHeader  Content-Disposition    attachment  filename       fileName          try       if  bt    null                System IO MemoryStream stream1   new System IO MemoryStream bt  true           stream1 Write bt  0  bt Length           Response BinaryWrite bt             Response OutputStream Write bt  0   int stream1 Length           Response Flush               Response End            catch  Exception ex        Response Write ex Message       throw ex    finally       Response End

User · Answer

Please check this link for the reason behind this issue and solution for the error  http   support microsoft com kb 312629 EN-US  Microsoft Support Article  PRB  ThreadAbortException Occurs If You Use Response End  Response Redirect  or Server Transfer Print Print Email Email  To work around this problem  use one of the following methods  For Response End  call the HttpContext Current ApplicationInstance CompleteRequest method instead of Response End to bypass the code execution to the Application EndRequest event  For Response Redirect  use an overload  Response Redirect String url  bool endResponse  that passes false for the endResponse parameter to suppress the internal call to Response End  For example    Response Redirect   quot nextpage aspx quot   false   If you use this workaround  the code that follows Response Redirect is executed  For Server Transfer  use the Server Execute method instead

User · Answer

If you are using Update Panel and link button to download excel is inside the panel than add postback trigger   lt asp PostBackTrigger ControlID  lnkTemplate    gt     and in Code behind inside click event  string ServerPath   System Configuration ConfigurationManager AppSettings  FilePath      Template xlsx   System IO FileInfo file   new System IO FileInfo Server MapPath ServerPath     HttpContext Current Response Clear    HttpContext Current Response AddHeader  Content-Disposition    attachment  filename     file Name   HttpContext Current Response AddHeader  Content-Length   file Length ToString                 HttpContext Current Response ContentType    application octet-stream    HttpContext Current Response TransmitFile file FullName    HttpContext Current Response Flush     HttpContext Current ApplicationInstance CompleteRequest

User · Answer

Use this  works for me always   Response Redirect Request RawUrl  false     Here  Response Redirect Request RawUrl  simply redirects to the url of the current context  while the second parameter  false  indicates to either endResponse or not

User · Answer

Also You Can Use Server Execute

User · Answer

Request Redirect url false     false indicates whether execution of current page should terminate

User · Answer

Just encase someone else ran into the issues I did  I was using Response End    an async trigger button    lt asp AsyncPostBackTrigger ControlID  btn login    gt    in an update panel  I switched to regular post back not the best but it worked         lt asp PostBackTrigger ControlID  btn login    gt      Since I was only redirecting on the page this was a viable solution

User · Answer

I had this same problem too  and it was tricky  For me  it was because I m using Ext Js javascript library  If you are doing a response redirect in server-side code that you accessed in an Ajax call  there are problems  Ext js has a workaround with their Ext Redirect method

User · Answer

Make second argument of Response false as shown below   Response Redirect url false

User · Answer

Resolution     To work around this problem  use one of the following methods          For Response End  call the HttpContext Current ApplicationInstance CompleteRequest     method instead of Response End to bypass the code execution to the   Application EndRequest event    For Response Redirect  use an overload  Response Redirect String url  bool endResponse  that passes false for the endResponse parameter to suppress the internal call to Response End  For example  Response Redirect     nextpage aspx   false   If you use this workaround  the code   that follows Response Redirect is executed    For Server Transfer  use the Server Execute method instead       Symptoms     If you use the Response End  Response Redirect  or Server Transfer   method  a ThreadAbortException exception occurs  You can use a   try-catch statement to catch this exception    Cause     The Response End method ends the page execution and shifts the   execution to the Application EndRequest event in the application s   event pipeline  The line of code that follows Response End is not   executed       This problem occurs in the Response Redirect and Server Transfer   methods because both methods call Response End internally    Status     This behavior is by design    Properties     Article ID  312629 - Last Review  August 30  2012 - Revision  4 0      Applies to         Microsoft ASP NET 4 5   Microsoft ASP NET 4   Microsoft ASP NET 3 5   Microsoft ASP NET 2 0   Microsoft ASP NET 1 1   Microsoft ASP NET 1 0         Keywords  kbexcepthandling kbprb KB312629   Source  PRB  ThreadAbortException Occurs If You Use Response End  Response Redirect  or Server Transfer

[asp.net] Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack

Examples related to asp.net

Examples related to .net-3.5

Examples related to response.redirect