Render PDF File onto Client's Browser

Generic Procedure for Rendering given file to Client's Browser:

protected void WriteToResponse(string fileName, bool saveAsFile, string fileFormat, System.IO.MemoryStream stream)

        {

            if (Page == null Page.Response == null) return;

            string disposition = saveAsFile ? "attachment" : "inline";

            Page.Response.Clear();

            Page.Response.Buffer = false;

            Page.Response.AppendHeader("Content-Type", string.Format("application/{0}", fileFormat));

            Page.Response.AppendHeader("Content-Transfer-Encoding", "binary");

            Page.Response.AppendHeader("Content-Disposition", string.Format("{0}; filename={1}.{2}", disposition, fileName, fileFormat));

            Page.Response.BinaryWrite(stream.GetBuffer());

            Page.Response.End();

        }

        //Saves File on Server - For given Location

        protected void SaveMemoryStream(MemoryStream stream, string FileName)

        {

            FileStream outStream = File.OpenWrite(FileName);

            stream.WriteTo(outStream);

            outStream.Flush();

            outStream.Close();

        }

Usage:

MemoryStream stream = new MemoryStream();

DevExpress.Web.ASPxTreeList.Export.Helper.ASPxTreeListLink link = new DevExpress.Web.ASPxTreeList.Export.Helper.ASPxTreeListLink(treeViewPDFExporter);

link.CreateReportHeaderArea += new DevExpress.XtraPrinting.CreateAreaEventHandler(link_CreateReportHeaderArea);

link.PrintingSystem = new DevExpress.XtraPrinting.PrintingSystem();

link.CreateDocument();

link.PrintingSystem.ExportToPdf(stream);

//Renders Document to Client's Browser

WriteToResponse(DPkg_MapFile, true, "pdf", stream);

//Saves File on to Server location

SaveMemoryStream(stream, DPkg_MapFile);