SharePoint Document Library C# - Open particular version document from Document library

In this article, I am going show how to open particular version document from SharePoint document library.

void ViewDocument()

        {

            try

            {

SPSite Site = new SPSite(URL);

                    using (SPWeb web = CurrentSite.OpenWeb())

                    {

                        SPList Selectedlist = web.Lists[DocLibrary];

                        SPListItem item = Selectedlist.GetItemById(DocID);

                        SPFileVersion ver =  item.File.Versions.GetVersionFromID(versionID);

                        Stream steam = ver.OpenBinaryStream();

                        byte[] binfile = ver.File.OpenBinary();

                        FileStream fstream = new FileStream(filePath + "\\" + item.File.Name,

                        FileMode.Create, FileAccess.ReadWrite);

                        fstream.Write(binfile, 0, binfile.Length);

                        fstream.Close();

                        frm_ViewAttachment.Close();

                        Process.Start(filePath + "\\" + item.File.Name);

                    }

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message, "Message");

                return;

            }

        }