Al Pascual ASP.NET Blog

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

AJ,

Actually I am getting this error message.

I use godaddy and I have barely uploaded some test pages.

I use VS2008, .Net Framework 3.5 and Ajax 3.5.

I have a radiobuttonlist, and two dropdownlist.

When user selects radiobutton the content of my second dropdownlist changes (suppose to). This scenario works perfectly locally on my computer but when I publish it on the hosting server, I am getting this message.

Any suggestions you may have?

thanks

don kang

kangdon@hotmail.com

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

Plz send me solution for this error

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

The solution for this issue is given in this link.

weblogs.asp.net/.../sys-webforms-pagerequestmanagerparsererrorexception-what-it-is-and-how-to-avoid-it.aspx

hope this will solve your problem.

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

This solution is worthless, pasted all across the net, and worthless

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

i am also facing the same problem. please some expert must help us.

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

i agree with Mr Dave

(Monday, November 10, 2008 1:44 AM by Dave)

actually i tried all this things. but still getting error.

at local it works fine. but after deploying at godday acocount it isn't work :(

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

any other clues. I am also getting same problem....

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

I resolve my error using response.redirect instead of server.transfer /*works in my scenario*/

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

Yes.. i have also resolve my error using Response.redirect instead of server.transfer

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

I get this error by just making repeated calls to an update panel, or when the session times out, even if the session isn't being used.

What the heck is up with this?!

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

when search network is not found then generate this error in browser.

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

I tried your solution.....dint worked for me.....any other possibility?

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

Ususally I'm able to convert a SqlDataSource to a DataView to bind to a new Gridview use Response.Write to send the Excel file to the user using StringWriter, triggered by an asp:button. Trying from a button in the UpdatePanel is not working even with enableEventValidation="false" and I still don't see how to do this after reading this whole thread and posts, that is without trying to decrypting the blob of data AJAX receives from the server.

Any tricks for me, or do I have to give up and move the button outside the update panel even though I don't want to in the layout?

~~~~~~~~

'VB Sub

Protected Sub btnDownload_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Dim sbFile as string = Now.ToString("yyyy-MM-dd").ToString( + ".xls"))

Dim dv As DataView = mySqlDataSource.Select(DataSourceSelectArguments.Empty)

DataViewToExcel(dv, sbFile.ToString)

End Sub

//C# Class void

public static void DataViewToExcel(DataView dv, string filename)

       {

//Convert SqlDataSource to DataView then export to excel for raw data without GridView formatting.

           if (dv.Count > 0)

           {

               if (dv.Count < 65536)

               {

                   //VerifyRenderingInServerForm(gv);

                   HttpContext.Current.Response.Clear();

                   HttpContext.Current.Response.ContentEncoding = Encoding.GetEncoding("ISO-8859-1");

                   HttpContext.Current.Response.Charset = "";

                   HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + filename.ToString());

                   System.IO.StringWriter TextWriter = new System.IO.StringWriter();

                   HttpContext.Current.Response.ContentType = "application/vnd.xls";

                   System.IO.StringWriter stringwrite = new System.IO.StringWriter();

                   HtmlTextWriter htmlwrite = new HtmlTextWriter(stringwrite);

                   GridView gv = new GridView();

                   gv.DataSource = dv;

                   gv.AllowPaging = false;

                   gv.AllowSorting = false;

                   gv.DataBind();

                   gv.RenderControl(htmlwrite);

                   HttpContext.Current.Response.Write(stringwrite.ToString());

                   HttpContext.Current.Response.End();

               }

               else

               {

                   //Msg.Text = "Too many rows - Export to Excel not possible";

               }

           }

       }

# re: How to fix Sys.WebForms.PageRequestManagerParserErrorException in AJAX 1.0

Adding a trigger to the update panel outside the contenttemplate fixed my exel download from a button within the panel!

Thanks to Jonny Coder!

johnnycoder.com/.../export-gridview-to-excel-within-an-updatepanel

...

   </ContentTemplate>

   <Triggers>

       <asp:PostBackTrigger ControlID="btnExport" />

   </Triggers>

</asp:UpdatePanel>

...