Cannot redirect after http headers have been sent - Programmers Heaven

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!


Welcome to the new platform of Programmer's Heaven! We apologize for the inconvenience caused, if you visited us from a broken link of the previous version. The main reason to move to a new platform is to provide more effective and collaborative experience to you all. Please feel free to experience the new platform and use its exciting features. Contact us for any issue that you need to get clarified. We are more than happy to help you.

Cannot redirect after http headers have been sent

varun_789varun_789 Posts: 7Member
hi friends,

i have trying to develop an application in which i have to export a report to pdf file.

i use crystal reports for that.

i also have to stream that report to client machine and do not have to store that on server.

this happens on a button's click event which is as follows.

protected void Button1_Click(object sender, EventArgs e)
ReportDocument StReport = new ReportDocument();

string reportPath = Server.MapPath(@"~Report.rpt");


ExportOptions crExportOptions;

crExportOptions = StReport.ExportOptions;

crExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat;

MemoryStream ms = (MemoryStream)StReport.ExportToStream(ExportFormatType.PortableDocFormat);






i get the error i mentioned in the subject of this post.

i even tried javascript code which is commented in the listing above but that also failed.

kindly help me in this matter and show me the way forward.

thanks in advance.

Sign In or Register to comment.