App Having Viewstate Corrupted Every Few Minutes?
Jan 24, 2010
I'm having a problem with a web app I'm managing. Users starting receiving the following error occasionally:
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
The problem is that it's not a cluster - it's a single Windows 2003 server. After digging around, it appears that adding a machineKey section and some extra attributes to the Pages directive in my web.config resolves this error:
<machineKey validationKey='MACHINE KEY SNIPPED'
decryptionKey='DECRYPTION KEY SNIPPED'
validation='SHA1'/>
<pages validateRequest="true" enableEventValidation="false">
After changing these two things in my web.config, the error goes away, but now I have a new problem - Instead of an error that my viewstate is invalid, the app just "Forgets" who my user is, and sends them back to the login page. Now, the users are browsing through the application, and then they're unexpectedly sent to the login page, even after they've already been logged in for a few minutes. While I can't force this to happen, it usually happens within visiting 10-12 different pages, so pretty frequently.
I'd love a resolution to this - does anybody know what else might be causing the viewstate error on a single server, or what I can do to ensure that it's validated properly?
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Jan 14, 2011
If you open a web page on one of the websites hosted on our server, and leave it for 20 minutes, and then submit a form, a "Validation of viewstate MAC failed." error occurs.
What possible reasons could there be for this?
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Aug 27, 2010
I have received an error "Validation of viewstate MAC failed".
I am hosting the web site on my own server, so there is nothing like a "Web Farm or cluster". Can you advise what could be the problem with this error.
I only get this error if the page is left inactive for more then 20 minutes and it throws the exception, so users have log-off and login to continue working fine.
See below full error details.
[code]....
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Dec 3, 2010
We have a ASP.net form [.NET 3.5 on IIS 6] that loads controls dynamically. We are able to retain the values in the viewstate as long as the postback happens within 20 minutes. The database also gets updated properly. Everything works as expected.
However, If it takes more than 20 minutes for a user to fill out the form, the controls no longer retain their values during postbacks. The session values are intact, the user authentication is also intact. We tried several things
1) Added machine keys to web.config files - we have 2 web servers load balanced by Windows load balancer
2) We confirmed that the user are routed to the same server - because the sessions are sticky
3) Increased the session timeout to 60 minutes in IIS 6.0
4) Increased the Idle timeout for connection pool to 60 minutes
5) Changed Form authentication ticket timeout to 60 minutes
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May 9, 2010
I have a problem in my web site ...
When ever i left my website idle ...
The following message is displayed ...
After this message is displayed , no pages is able to access ....
The error message is :
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster
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Feb 13, 2011
I want to redirect the user after 2 mins if there is inactivity for 2 mins. I am not using ASP.NEt membership. And I dont want to use Sessiontimeout for this. Session timeout will logout the user even if he is working on the system. My objective is like screensaver process.
If there is no action for the specified time, the screensaver runs. Similarly, I want to redirect the user to login page.
note that i have already handled it with the following javascript:
[Code]....
Here what my problem is,
the user is working on the site...ok.. he want to see someother site.he browse someother site and works on....or even he can do some other work in his system...but he is active in his system... What this script does is, it automatically logout the user and redirect him to login page. But it should not do while he is active...IT SHOULD REDIRECT IF HE IS NOT ACTIVE REALLY (Similar to Screensaver process)
Is it possible ?
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Oct 9, 2010
Now here is the weird thing. First i am running it locally on the built in vs2008 web server.I load my control in fine, do a postback from a linkbutton, locally on my machine it all works fine, no issue.However when it goes onto my host, it falls over with the message:
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request.Now i also load controls dynamically and use postbacks and things in the admin area of the site...and that works fine, however my front end just keeps failing? See the code behing below:
[Code]....
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Jun 10, 2010
I have a situation where my session variables seem to get corrupted. I Page_Load I am calling 2 subs. Each of them fills a GridView with data from a table. I am saving the content of each Data.DataTable into Session Variables:
Get_Summary_Last_Completed_Shift()
code in sub:
mySqlDataAdapter.Fill(mySqlDataTable)
Session("mySqlDataTable1") = mySqlDataTable
GridView1.DataSource = mySqlDataTable
GridView1.DataBind()
Code:
Get_Petroleum_Disbursement()
code in sub:
mySqlDataAdapter.Fill(mySqlDataTable)
Session("mySqlDataTable5") = mySqlDataTable
GridView5.DataSource = mySqlDataTable
GridView5.DataBind()
After I call the 1st sub and I debug the session variable "mySqlDataTable1" contains all the data from the table. After I call the 2nd sub and I debug the session variable "mySqlDataTable1" has been changed and contains a mix of data from the 2 tables.
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Aug 5, 2010
I have written the following code to download a file from sharepoint. The downloded file works fine in only some machines. For others, it says that the file is corrupted. The issue is for MS Office and image files, however the PDF is not having any issues. We have identified the issue of corruption as due to the addition of a hexadecimal number at the top of the file contents. When it is removed, the file gets opened correctly. The hexadecimal character has been traced out to be representing the file size in bytes. Why this is happening only in some machines and how can we fix it?
private void DownloadFile()
{
SPListItem item = GetFileFromSharepoint();
[code]...
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Sep 20, 2015
I have followed tutorial at [URL] .....
The file does upload via ftp but it is corrupt when downloaded. I've tried uploading a jpg file.
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Jan 11, 2011
I have problem getting values from viewstate in GetTopThemes.
<asp:ObjectDataSource
ID="sourceGetTopThemes"
runat="server"
TypeName="DBConnection"
SelectMethod="GetTopThemes"
EnableViewState="true"></asp:ObjectDataSource>
[Code]....
}
[Code]....
when the page is not Posted back, I saved all values in the viewstate.
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Apr 30, 2010
I have been getting this error a lot lately with some of my users, and I had a couple of concerns with view state and I have read so many articles but I am still lost..
1. I use masterpage on all the pages and I need viewstate for some of the pages but..
There is a page where a user will fill out the information and then submit this data to a cgi server, and it is where I get most of the Client Disconnected errors, what would happen if I disable viewstate when they click on that button?
Now when a user browses from one page to another, does the view state from the previous page get deleted? If not how would I delete it?
Does the master page have its own viewstate? Would I be able to make sure none of items on my master page are using the viewstate?
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Sep 24, 2010
I have a shopping cart page (Cart.aspx) that has a button that will (sometimes) post to a third party payment gateway, if payment is necessary. The payment gateway will process the payment and then do a silent post to my website (Order.aspx) so I can update the order status.
Order.aspx always throws an invalid viewstate error, even though viewstate is disabled on the page.
What's happening is that Cart.aspx (which has viewstate enabled) posts to the payment gateway, and the gateway will post it back as part of the silent post. Even though Order.aspx has viewstate disabled and validation disabled, it still tries to validate the __viewstate field it's being given.
I know setting EnableViewState=false will disable the rendering of the __viewstate field, but if another page provides the field, shouldn't it still skip validation? I tried calling ViewState.Clear() on the Page_Init event of Order.aspx, but ViewState is apparently empty. how to get around this? I don't want to disable ViewState on Cart.aspx (in some cases it may be necessary), but I can't figure out how to clear it on Order.aspx.
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Oct 7, 2010
I have used this example when exporting data to PowerPoint:
I have modified the GenerateSlidesFromDB() method:
public void GenerateSlidesFromDB()
{
string slideName = @"C:UsersxDesktopoutput.pptx";
File.Copy(@"C:UsersxDesktopTest.pptx", slideName, true);[code]....
As you can see I overwrite the placeholder with "Test User", and it works like a charm.I need to add an image (as a placeholder) to this pptx-file. When I do that (and run the code again) I get a corrupted pptx-file?
Error message: PowerPoint removed unreadable content in output.pptx. You should review this presentation to determine whether any content was unexpectedly changed or removed.
Edit: If I try the original code (which is slightly modified since I dont have Adventureworks), I get some other kind of error message:
This file may have become corrupt or damaged for the following reasons: Third-party XML editors sometimes create files that are not compatible with Microsoft Office XML specifications.
The file has been purposely corrupted with the intent to harm your computer or your data. Be cautious when opening a file from an unknown source.
PowerPoint can attempt to recover data from the file, but some presentation data, such as shapes, text,and formatting, may be lost.
Do one of the following:If you want to recover data from the file, click Yes.If you do not want to recoverdata from the file, click No.
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Dec 25, 2010
I am using :
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.contoso.com/test.htm");
request.Method = WebRequestMethods.Ftp.UploadFile;
// This example assumes the FTP site uses anonymous logon.
request.Credentials = new NetworkCredential ("anonymous","janeDoe@contoso.com");
// Copy the contents of the file to the request stream.
StreamReader sourceStream = new StreamReader("testfile.txt");
byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
request.ContentLength = fileContents.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
For uploading images and songs to the server. But the file is getting corrupted on upload. Normal upload is getting error due to security reason and access issues.
Had to dwell on to ftp. But in this case, file is getting corrupted.
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i am getting arabic words like as follows in my system (server 2003) "ÎÕÈ ÈÎÇ" .
same words getting correctly in another machine.
artro.ttf and artrbdo.ttf files i nstalled in font folder.
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Feb 23, 2010
I have been receiving this error despite of the fact i have set the following inside web.config
[Code]....
The error description is as follows: Source: System.Web Message: The state information is invalid for this page and might be corrupted. Stack Trace:
at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
at System.Web.UI.HiddenFieldPageStatePersister.Load()
at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
at System.Web.UI.Page.LoadAllState()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.pages_aspx.ProcessRequest(HttpContext context)in c:WindowsMicrosoft.NETFramework64v2.0.50727Temporary ASP.NET Files
oot2cade9c6ad55f41App_Web_pages.aspx.cdcab7d2.8ksggavg.0.cs:line 0
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Data:System.Collections.ListDictionaryInternal Browser Capabilities
IP Address = 212.235.106.121
Type = Opera8
Name = Opera
Version = 8.00
Major Version = 8
Minor Version = 0
Platform = WinXP
Is Beta = False
Is Crawler = False
Is AOL = False
Is Win16 = False
Is Win32 = True
Supports Frames = True
Supports Tables = True
Supports Cookies = True
Supports VBScript = False
Supports JavaScript = True
Supports Java Applets = True
Supports BackgroundSounds = True
Supports ActiveX Controls = False
Browser = Opera
CDF = False
CLR Version = 0.0
ECMA Script version = 1.4
MSDOM version = 0.0
Supports tables = True
W3C DOM version = 1.0
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Mar 19, 2010
I have this following code for bringing page attachments to the user:
[code]...
The problem is that all supported files works properly (jpg, gif, png, pdf, doc, etc), but .docx files, when downloaded, are corrupted and they need to be fixed by Office in order to be opened.
At first I didn't know if the problem was at uncompressing the zip file that contained the .docx, so instead of putting the output file only in the response, I saved it first, and the file opened successfully, so I know the problem should be at response writing.
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Apr 26, 2010
why cyrillic text is getting corrupted in PDF report.
I have set Arial UNicode Ms font in report. The column from where the data is retrived is also nvarchar(max).
So why the cyrillic text is getting corrupted.
View 1 Replies
Sep 28, 2010
I have used jquery for mbscrollable it working fine but when i run application in Internet Explorer it gives error on button which redirects to next page. Error is: The state information is invalid for this page and might be corrupted. Server Error in '/maxnetecommerce' Application. The state information is invalid for this page and might be corrupted. 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.Web.HttpException: The state information is invalid for this page and might be corrupted.
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:
[FormatException: Invalid character in a Base-64 string.]
System.Convert.FromBase64String(String s) +0
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +102
System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +59
System.Web.UI.HiddenFieldPageStatePersister.Load() +124
[ViewStateException: Invalid viewstate.
Client IP: 182.72.17.210
Port: 54486
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.1; .NET4.0C)
ViewState: 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...]
[HttpException (0x80004005): The state information is invalid for this page and might be corrupted.]
System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +148
System.Web.UI.HiddenFieldPageStatePersister.Load() +10956310
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +11040040
System.Web.UI.Page.LoadAllState() +46
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11035559
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11035098
System.Web.UI.Page.ProcessRequest() +91
System.Web.UI.Page.ProcessRequest(HttpContext context) +240
ASP.default_aspx.ProcessRequest(HttpContext context) +52
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +599
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +171
But it works fine in Mozilla Firefox, when i remove mbscrollable from page no error comes
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Jun 22, 2010
I am receiving the following error when browsing my asp.net page in internet explorer while in firefox mozilla everything works fine. I have tried different approaches as I believe there is a problem with VIEWSTATE as to
- <pages enableViewStateMac="false" >
- <pages enableViewState="false">
- <pages viewStateEncryptionMode="Never">
- <pages maxPageStateFieldLength="40">
but nothing seems to work. The error looks like below: Source Error: [No relevant source lines]
Source File: c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesemportalermal7c94fef4cccf3353App_Web_mtkk1qfn.6.cs Line: 0
Stack Trace:
[FormatException: Invalid character in a Base-64 string.]
System.Convert.FromBase64String(String s) +0
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +72
System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4
System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37
System.Web.UI.HiddenFieldPageStatePersister.Load() +113
[ViewStateException: Invalid viewstate.
Client IP: 127.0.0.1
Port:
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
ViewState: 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...]
[HttpException (0x80004005): The state information is invalid for this page and might be corrupted.]
System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +106
System.Web.UI.ViewStateException.ThrowViewStateError(Exception inner, String persistedState) +14
System.Web.UI.HiddenFieldPageStatePersister.Load() +217
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +105
System.Web.UI.Page.LoadAllState() +43
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6785
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +242
System.Web.UI.Page.ProcessRequest() +80
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.al_page_aspx.ProcessRequest(HttpContext context) in c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesemportalermal7c94fef4cccf3353App_Web_mtkk1qfn.6.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
Remember that the error appear just in internet explorer
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Oct 25, 2010
One day I was developing my MVC app in Visual Studio 2010 and my computer crashed (flaky hardware - now fixed).But ever since then,in my app,whenever I have a view page or control editor up, the <%@ Page ... %> statement was squigley-underlined in blue with an tool-tip error message like:
/.../page.aspx: ASP.NET runtime error: Could not load file or assembly 'StructureMap, Version=2.6.1.0, Culture=neutral, PublicKeyToken=xxxxxxxxxxxx' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT:0x80070057 E_INVALIDARG))
I deleted and re-added the reference to StructureMap in the References in the solution explorer,deleted and re-copied the actual StructureMap DLL, but the error doesn't go-away.I deleted the output directories and rebuilt,but still have the problem.
The application still builds and runs okay, but while in the editor, though I continue to have IntelliSense for the HTML stuff,for any C# code inside <% %>'s, the IntelliSense is gone.
If I copy the application tree to another disk or directory,or rename the root directory to a different name,the problem goes away.But if I use the same name or disk,the problem appears.Maybe it's some corrupted registry entry?
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Nov 25, 2010
In my asp.net application. I am making one pdf template then bind the data with that template then save it on one folder. then pop the pdf file from that saved directory. Now all are fine. The problem is when i host the application sometimes i am getting message as the file is damaged or corrupted with message box. But when i get this error the i am going to refresh the page i will get the pdf file with data. Why It is not coming very first time. Why it is getting when we click on the refresh of browser.
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Oct 24, 2010
I have a major problem. I have windows 2003 serverm in it I have installed sqlserver and on it several databases that was published for months. Now, the windows 2003 server crashed and I cannot login ti windows anymore. What I have done is to create a new installation of windows and installed again the sqlserver...
Now, how do I get back the latest database from the previous corupted installation? I still have access to the files in the previous installation.
View 1 Replies
Aug 5, 2013
I am using Jquery Load and calling a page in a div.
Now while doing postback m getting this error The state information is invalid for this page and might be corrupted.
SO what might be the possible solution for the same.or is this error due to some other thing.
All this error am getting while doing postback.and when i refresh the page and do the same thing again it works absolutely fine.
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