hi Maria ,
I am also getting the same error When on button click I am opening a download dialogue to download a file.the C# code for which is as follwing:
"Content-Disposition", "attachment; filename=" + file.Name);
The error I get is some thing like this:
"sys.WebForms.PageParseManagerParseErrorException"The message received from the
server could not be parsed. Common causes for the error are when response is
modified by calls to Response.write(), reponse.filters or server trace is enabled
Details" error parsing near 'PK.."
Well the solution suggested on the link provided by you is valid when we use Ajax Updatepanel.And it says that we just need to keep the Button triggering the asyncronous post back outside the Updatepanel. but I am using Radajaxmanager and even If I dont ajaxify the Button I am still getting the error.
how do I simply synchronously submit the page on Button click and initiate the downlaod of a file.