Eilon Lipton's Blog - All Comments

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Chuck — Thu, 03 Jul 2008 18:16:02 GMT

I was having this problem, but only under Firefox - and not on my dev computer.

It turns out that ASP.NET was configured to store session state in cookies and Firefox was configured to not accept any cookies. Altering the session state management for ASP.NET in IIS did the trick.

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Venkat — Thu, 03 Jul 2008 13:02:28 GMT

Hello,

I have a ajax page, which is working fine if I open the page directly.

Now I am referring this page URL in another applicaiton Iframe, to display this page.

Click on Ajax button i am getting the error: sys.webforms.pagerequestmanagerparsererrorexception

Any idea? why it is failing when i refer this page in another application web form (using Iframe)?

Thanks,

Venkat

Fixing Sys.WebForms.PageRequestManagerParserErrorException in AJAX « Manoj Garg’s Tech Blog

Thu, 03 Jul 2008 08:21:23 GMT

Pingback from Fixing Sys.WebForms.PageRequestManagerParserErrorException in AJAX « Manoj Garg’s Tech Blog

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Mark — Thu, 03 Jul 2008 06:37:42 GMT

Here is a novel thought try writing software so people dont get this error you freaking idiot ! Wait that makes sense and nothing Microsoft does makes any sense! I cant wait until visual studio is dead a fate it so dearly deserves!

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Solrac — Sun, 29 Jun 2008 21:52:45 GMT

One thing to try is to call your button events using javascript. Check out the example below.

//Code Behind

btnSubmit.Attributes.Add("onclick", "setSubmit();");

//javascript

function setSubmit() { _doPostBack('btnSubmitClick', '');

}

// Aspx page: bottom of page

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Paul — Thu, 26 Jun 2008 23:41:06 GMT

Hello Eilon,

I have a page that uses a masterpage with the following:

Masterpage has a silverlight usercontrol.

The default page uses the masterpage and has an Accordion with 5 panes.

Each pane with the exception of the last has a web user control.

Each web user control has a repeater with a series of lintButton controls.

The accordion is placed in an update panel. The update panel has a roundedcorner extender.

Now, I call the server.Transfer(page, true) within a clicked event for the linkButton in these usercontrols. The destination page page_load event runs, but does not display and I get the Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it error.

I have attempted using the EnableViewStateValidation = false and EnableViewStateMac = false settings to no avail.

Please Help.

Paul

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Thomas — Tue, 24 Jun 2008 11:48:12 GMT

What a wonderful solution.... HttpModules just don't use them.....quite

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Deb — Thu, 19 Jun 2008 07:07:31 GMT

Just use PostBackUrl prop

example :

--------

<asp:Button ID="btnAddNewUser" Text="Add New User" OnClick="btnAddNewUser_Click"

CssClass="FormButton" runat="server" PostBackUrl="~/Administration/UserAdd.aspx" />

Enjoy!!

Deb

re: Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

Juan Pablo — Thu, 19 Jun 2008 00:40:21 GMT

We faced the same problem more than once; this occurs because the AJAX sends the length of the response, but for some reason the response has another length, so it fails. We tried with the multiple solutions in many sites (a new session, an asp:label before, ...), but the only solution is to check the real response of your call. For example, if you have a grid inside the updatepanel and refresh the UP but do not do a databind() in the grid, the expected response will be shorter than the real one (the same for dropdowns, on-the-fly labels, etc.). Check the exact response of your AJAX call. This is the only solution (for IE use DebugBear which shows the result of the AJAX response; in this case we can saw that some asp controls were not filled and the ajax response fails).

Greetings and sorry for my poor english! =)

What you need to know about ASP.NET Databinder Eval and Bind

Adam Pedley — Wed, 18 Jun 2008 12:04:58 GMT

What you need to know about ASP.NET Databinder Eval and Bind