Question

System.ArgumentException: Invalid postback or callback argument

Asked by: UAnurag

Hi Guys,


I have ported tthe code from 1.1 to 2.0 and I am getting the following exception. Does anyone have idea about it? I dont want to change the <pages enableEventValidation="true"/> to <pages enableEventValidation="false"/> on every page.

Please let me know soon. Following is the error message...


System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> 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.


Thanks,

Anurag

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Asked On
2006-05-15 at 11:14:46ID21851049
Tags

invalid

,

validation

,

page

,

argument

Topic

Programming for ASP.NET

Participating Experts
2
Points
500
Comments
6

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Answers

 

by: laotzi2000Posted on 2006-05-15 at 12:03:10ID: 16684867

In web.config add this:
<pages enableEventValidation="true"/>

 

by: laotzi2000Posted on 2006-05-15 at 12:03:59ID: 16684872

Correction:

In web.config add this:
<pages enableEventValidation="false"/>

 

by: sastry_horaPosted on 2008-11-08 at 07:59:50ID: 22912857


Hi,

 

in repeater control in textbox text changed event i have the following problem in InternetExplorer only,in Mozilla it is working properly

 

iam using EnableEventvalidation="false"  then the text changed event is not firing in IE

 

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.

 

Thanks in advance

with regards,

prasanth  

20120131-EE-VQP-002

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