473,698 Members | 2,139 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Eventvalidation , bug or annoyance ?

PL

It seems there is a bug or at least an annoynance with the new eventvalidation .

I can't really tell you a certain way to reproduce this but I have a large datagrid that
uses custom paging, I have navigation controls both at the top and the bottom.

Everything works fine if you click the navigation links and allow the page to fully
load before clicking the next time, but sometimes people click the navigation links
at the top before the page has fully loaded, and behold, the dreaded "yellow page"
appears:

Server Error in '/' Application.
--------------------------------------------------------------------------------
Invalid postback or callback argument. Event validation is enabled using <pages enableEventVali dation="true"/> in configuration or
<%@ Page EnableEventVali dation="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.
....<snip>

The whole problem here seem to be that the hidden form field __EVENTVALIDATI ON is placed
at the very bottom of the page, just above the closing form tag, so if the page isn't fully loaded when
they click the "next" link this field is either not sent along or is corrupted.

So, BUG or annoyance ? You decide, it seems to me this is a buggy implementation to say the least
and it may appear intermittently all over an application just because a postback happens from a page
that haven't fully loaded.

It would be nice to MS comments on this, and how to solve it other than turning eventvalidation off
for the whole application.

PL.
Nov 19 '05 #1
0 1403

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

9
1482
by: Jegenye 2001 Bt | last post by:
Caveat: Python 2.2.2 (#37, Oct 14 2002, 17:02:34) Type "help", "copyright", "credits" or "l >>> l = >>> l 2 >>> l.__getitem__(1) 2 >>> l.__getitem__(slice(1))
8
1314
by: caroundw5h | last post by:
PEP 292 adds a Template class to the string module that uses "$" to indicate a substitution. Template is a subclass of the built-in Unicode type, so the result is always a Unicode string: >>> import string >>> t = string.Template('$page: $title') >>> t.substitute({'page':2, 'title': 'The Best of Times'}) u'2: The Best of Times' If a key is missing from the dictionary, the substitute method will
0
1350
by: Bloody Viking | last post by:
I've got an XSLT stylesheet which I've written and maintained for over 2 years now. I've always simply processed it with java org.apache.xalan.xslt.Process, but now I'm trying to speed things up, by compiling the stylesheet once, and processing hundreds of XML docs with it. The output is HTML. This is Java 1.4.1 on a Sparc9. The relevant code: in main():
16
1721
by: sloughin | last post by:
I realize that C# is a strongly typed language, but as a C++ programmer converting to C# I find the requirement that I typecast my integer enum values to be particularly annoying. Does anyone else in the C# community think that the compiler should relax this a bit // example, define an enum that derives from an int type public enum Fruit : in Apple = 1 Banana = 2 Cherry = 3 Date = 4
0
1192
by: DotQuery | last post by:
Hello ASP.NET team : I have a user control that be added into page at runtime , in a postback event handler . I save the information to view state , and load the user control again in CreateChildControls again . There's a datagrid in the user control . The datagrid bind the data when the user control be loaded at the first
1
2333
by: Dave | last post by:
Does anyone know what might cause this error in IE when my page loads: Error parsing attribute 'enableeventvalidation': Type '_Default' does not have a public property named 'enableeventvalidation' This is the line of code it stops on: <%@ Page Language="C#" AutoEventWireup="true" Inherits="_Default" Debug="true" EnableEventValidation="false" %> Source File: /main/default.aspx Line: 1
0
8671
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8598
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9152
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9016
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8887
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
7709
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
4360
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
4613
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
3
1997
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.