Getting the error

InnerException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

This happens here and there and not all the time in DotNetNuke 5.6.3.

My log shows:

ActiveTabID: 37
ActiveTabName: Home
RawURL: /Home/tabid/37/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://beta.viavalues.com/Home/tabid/37/Default.aspx
UserAgent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; MAAU)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: c55ec5d4-1865-4856-9bd9-7ca861ed6d08
InnerException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.UI.ClientScriptManager.ValidateEvent
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. ---> System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. at System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) at System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) at System.Web.UI.WebControls.TextBox.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.WebControls.TextBox.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---


This did not happen bfore 5.6.3

Any ideas? Setting it to false seems bad for security.

TIA,
JIm

---

Thank you,
James Campbell
MCP,MCSA,MCSE,Sec +
http://jamesecampbell.blogspot.com

Hi Chris,

I see this in many places throughout the site, moreso in a custom page with Dynamic Login(Datasprings) in which I also have to have the DNN login control in the page too. But it seems to happen everywhere. I know I turn off validation, but it is there for a reason.


Also when I click your link, it is as if there isn't any post there. 

With things like this going on daily, I am concerned in disabling event validation:

http://www.crn.com.au/News/277082,asp...


http://msdn.microsoft.com/en-us/libra...

per Microsoft:

Security Note
This feature reduces the risk of unauthorized or malicious postback requests and callbacks. It is strongly recommended that you do not disable event validation.

So yes, I can get around the error for now, but would love to figure out what is causing it. Guess I could run it through the debugger, but other things I have read, said one of the biggest issues with ASP.NET is a lot of programmers disable this.

Thanks,

Jim

---

Thank you,
James Campbell
MCP,MCSA,MCSE,Sec +
http://jamesecampbell.blogspot.com