﻿<?xml version="1.0" encoding="utf-8"?><rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:media="http://search.yahoo.com/mrss/" xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0" version="2.0"><channel><title>Intersoft Community - WebGrid Enterprise - Error when switching to PivotChartView (enableEventValidation=true error</title><link>http://www.intersoftsolutions.com/Community/WebGrid/Error-when-switching-to-PivotChartView-enableEventValidationtrue-error/</link><description /><generator>http://www.intersoftsolutions.com</generator><language>en</language><copyright>Copyright 2002 - 2015 Intersoft Solutions Corp. All rights reserved.</copyright><ttl>60</ttl><item><title>Error when switching to PivotChartView (enableEventValidation=true error</title><link>http://www.intersoftsolutions.com/Community/WebGrid/Error-when-switching-to-PivotChartView-enableEventValidationtrue-error/</link><pubDate>Mon, 14 Mar 2011 23:27:34 GMT</pubDate><dc:creator>yudi</dc:creator><description>&lt;p&gt;&lt;span style="font-family: 'segoe ui','sans-serif'; color: #1f497d; font-size: 9pt;"&gt;This error message is quite odd and we have not received such reports so far. I tried to reproduce the problem in my local test by creating a page that has two instances of WebGrid. Each of the WebGrid is placed into a single pane of WebPaneManager. The event validation also enabled during the test. I found out that everything worked smoothly and switching to PivotChartView doesn’t raise any error.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="font-family: 'segoe ui','sans-serif'; color: #1f497d; font-size: 9pt;"&gt;We are willing to advice you further but in order to do so we would need you to elaborate on your specific scenario by give us a running simple project that reproduce the problem and a step-by-step guide that we can use to observe the problematic behavior.&lt;/span&gt;&lt;/p&gt;</description></item><item><title>Error when switching to PivotChartView (enableEventValidation=true error</title><link>http://www.intersoftsolutions.com/Community/WebGrid/Error-when-switching-to-PivotChartView-enableEventValidationtrue-error/</link><pubDate>Mon, 14 Mar 2011 16:39:28 GMT</pubDate><dc:creator>matt@jmcinc.com</dc:creator><description>&lt;p&gt;&lt;span /&gt;&lt;/p&gt;I am getting this error when I try to switch to PivotChartView any ideas? I am using a webpanemanager to dispay multipual WebGrids if I try to do any Charts or graphs I get this error.&lt;br /&gt;&lt;br /&gt;&lt;span&gt;&lt;h2&gt; &lt;em&gt;Invalid postback or callback argument. Event validation 
is enabled using &amp;lt;pages enableEventValidation="true"/&amp;gt; in 
configuration or &amp;lt;%@ Page EnableEventValidation="true" %&amp;gt; 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.&lt;/em&gt; &lt;/h2&gt;&lt;/span&gt;
            &lt;span style="font-family: arial,helvetica,geneva,sunsans-regular,sans-serif;"&gt;

            &lt;strong&gt; Description: &lt;/strong&gt;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.

            &lt;br /&gt;&lt;br /&gt;

            &lt;strong&gt; Exception Details: &lt;/strong&gt;System.ArgumentException: Invalid
 postback or callback argument. Event validation is enabled using 
&amp;lt;pages enableEventValidation="true"/&amp;gt; in configuration or &amp;lt;%@ 
Page EnableEventValidation="true" %&amp;gt; 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.&lt;br /&gt;&lt;br /&gt;

            &lt;strong&gt;Source Error:&lt;/strong&gt; &lt;br /&gt;&lt;br /&gt;

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                      &lt;code&gt;
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.&lt;/code&gt;

                  &lt;/td&gt;
               &lt;/tr&gt;
            &lt;/tbody&gt;&lt;/table&gt;

            &lt;br /&gt;

            &lt;strong&gt;Stack Trace:&lt;/strong&gt; &lt;br /&gt;&lt;br /&gt;

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                      &lt;code /&gt;&lt;pre&gt;[ArgumentException: Invalid postback or callback argument.  Event validation is enabled using &amp;lt;pages enableEventValidation="true"/&amp;gt; in configuration or &amp;lt;%@ Page EnableEventValidation="true" %&amp;gt; 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.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) &amp;#43;173
   System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) &amp;#43;69
   System.Web.UI.HtmlControls.HtmlInputHidden.LoadPostData(String postDataKey, NameValueCollection postCollection) &amp;#43;94
   System.Web.UI.HtmlControls.HtmlInputHidden.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) &amp;#43;13
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) &amp;#43;343
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) &amp;#43;1743
&lt;/pre&gt;

                  &lt;/td&gt;
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            &lt;/tbody&gt;&lt;/table&gt;

            &lt;/span&gt;&lt;br /&gt;</description></item></channel></rss>