Howto: present a Crystal Reports report as a PDF in an ASP.NET web application (without using temporary files)

By rickvdbosch

- 1 minutes read - 112 words

This one is actually quite simple: Crystal Reports supports exporting to a PDF. Exporting can be done to disk, or to a stream. And a stream can be written to the Repsonse property of a page. And there you go 😉

// Variable declaration   CrystalTest crystalTest;   MemoryStream memoryStream;// Create a new instance of the report you want to display as a PDF   crystalTest = new CrystalTest();// TODO: Add some stuff here to fill the report with data// Export the report to a stream with the PDF format   memoryStream = (MemoryStream)crystalTest.ExportToStream(ExportFormatType.PortableDocFormat);// Set the ContentType to pdf, add a header for the length // and write the contents of the memorystream to the response   Response.ContentType = “application/pdf”;   Response.AddHeader(“content-length”, Convert.ToString(memoryStream.Length));   Response.BinaryWrite(memoryStream.ToArray());//End the response   Response.End();