Thread was being aborted exception in crystal reports - crystal-reports

Question

We were getting the Thread was being aborted Exception while exporting a report into PDF.
The below code we were using for export a report into PDF.
Response.Buffer = true;
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/pdf";
myReportDoc.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, Session["ReportName"].ToString());
Response.Flush();
Response.Close();
Please help me how to resolve this exception.

Answer 1

SAP explains that:
Cause
The issue has been identified and logged under Problem Report ID ADAPT00765364.
The error is likely caused because Response.End() is used inside the ExportToHttpResponse() method.
It is a known issue that Reponse.End() causes the thread to abort. This is by design.
See Microsoft KB312629 Article for more info.
Workaround
....
try
{
reportDocument.ExportToHttpResponse(format, Response, true, Page.Title);
}
catch (System.Threading.ThreadAbortException)
{
}
....
Resolution
You can write your own code to export a Crystal Report directly to the browser in a format such as PDF, Word, Excel, etc. You must make sure you use the appropriate content type.
Sample code to export Crystal Report to web browser as PDF
try
{
boReportDocument.Load(Server.MapPath(#"MyReport.rpt"));
System.IO.Stream oStream = null;
byte[] byteArray = null;
oStream = boReportDocument.ExportToStream (ExportFormatType.PortableDocFormat);
byteArray = new byte[oStream.Length];
oStream.Read(byteArray, 0, Convert.ToInt32(oStream.Length - 1));
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/pdf";
Response.BinaryWrite(byteArray);
Response.Flush();
Response.Close();
boReportDocument.Close();
boReportDocument.Dispose();
}
catch (Exception ex)
{
string s = ex.Message;
}

Answer 2

The error is thrown because a call to response.End() is made inside of ExportToHttpResponse. Remove your calls to Flush and Close the response and wrap your call to ExportToHttpResponse inside a try/catch block to catch and ignore the System.Threading.ThreadAbortException.