Response.Redirect in .NET 4.0

Question

Response.Redirect() no longer working when upgrade the application to ASP.NET 4.0

• Response.Redirect() is used inside Update panel
• and we using the AjaxToolKit 4.0

it gives me the error:

Error: 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. Details: Error parsing near

Answer 1

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);

Answer 2

UpdatePanel doesn't support resonse.redirect asynchronousely. You should either completely postback the page or avoid using it.

http://forums.asp.net/t/1539851.aspx/1?Response+Redirect+not+working+on+an+UpdatePanel+if+redirecting+to+a+ClickOnce+application+in+some+cases+

http://forums.asp.net/t/1392827.aspx

How to fix error: The message received from the server could not be parsed

Answer 3

Try passing True as the second argument like this:

Response.Redirect("http://...", true);