ASP.NET AJAX and PageRequestManagerParserErrorException

asp.net

Has anyone run into this error message before when using a timer on an ASP.NET page to update a DataGrid every x seconds?

Searching google yielded this blog entry and many more but nothing that seems to apply to me yet.

The full text of the error message below:

Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.

Best Answer

Many issues can cause that error. It's usually a Response.Write call, but anything that modifies the response can cause it.

We probably won't be able to help you unless you post some pertinent code-behind.

Related Solutions

AJAX PageRequestManagerParserErrorException error in asp.net page

You might be using response.write, server.transfer or similar within updatepanel; avoid that.

refer to http://weblogs.asp.net/leftslipper/archive/2007/02/26/sys-webforms-pagerequestmanagerparsererrorexception-what-it-is-and-how-to-avoid-it.aspx

C# – Response.Redirect in .NET 4.0

you have to do this

string redirectURL=(a proper url goes here)

string script = "window.location='" + redirectURL + "';";

ScriptManager.RegisterStartupScript(this, typeof(Page), "RedirectTo", script, true);

Related Topic

C# – Sys.WebForms.PageRequestManagerParserErrorException