c# - Download document -


right i'm working project there need make download button. works fine, can click save or save when want download file, when click open, nothing happens, why that?

string path = filepath.tostring(); fileinfo file = new fileinfo(path); if (file.exists) {     response.clear();     response.addheader("content-disposition", "attachment; filename=" + file.name);     response.addheader("content-length", file.length.tostring());     response.contenttype = "application/msword"; //octet-stream     response.writefile(file.fullname);     response.end(); }

update * not working open save

private void setworddocument() {     string strfilename = cleanup(labelfirstname.text + "_" +                                  labellastname.text + "_" +                                  datetime.now.tostring("yyyy-mm-dd") + "." +                                   dropdownlistdownloadcv0.selecteditem.text);      object fs = server.mappath("~/upload/") + strfilename;      using (var db = new knowitcvdbentities())     {         var theempl = (from p in db.employees                        p.username == strusername                        select p).firstordefault();          if (theempl != null)         {                     object missing = missing.value;             object start1 = 0;             var wordapp = new applicationclass();             var mydoc = wordapp.documents.add(ref missing, ref missing, ref missing, ref missing);              object donotsavechanges = wdsaveoptions.wddonotsavechanges;             range rng = mydoc.range(ref start1, ref missing);              try             {                 const char newline = (char)11;                 mydoc.saveas(ref fs,                     ref missing, ref missing, ref missing, ref missing, ref missing,                     ref missing, ref missing, ref missing, ref missing, ref missing,                     ref missing, ref missing, ref missing, ref missing, ref missing);             }                         {                      mydoc.save();                      //mydoc.close(ref donotsavechanges, ref missing, ref missing);                    wordapp.quit(ref donotsavechanges,ref missing,ref missing);                     mydoc = null;                    wordapp = null;                     system.runtime.interopservices.marshal.releasecomobject(mydoc);                      system.runtime.interopservices.marshal.releasecomobject(wordapp);                          gc.collect();                  system.io.stream istream = null;                  // buffer read 10k bytes in chunk:                 byte[] buffer = new byte[10000];                  // length of file:                 int length;                  // total bytes read:                 long datatoread;                  // identify file download including path.                 string filepath = fs.tostring();                  // identify file name.                 string filename = system.io.path.getfilename(filepath);                  try                 {                     // open file.                     istream = new system.io.filestream(filepath, system.io.filemode.open,                         system.io.fileaccess.read, system.io.fileshare.read);                      // total bytes read:                     datatoread = istream.length;                      response.contenttype = "application/msword";                     response.addheader("content-disposition", "attachment; filename=" + filename);                     //application/octet-stream                     // read bytes.                     while (datatoread > 0)                     {                         // verify client connected.                         if (response.isclientconnected)                         {                             // read data in buffer.                             length = istream.read(buffer, 0, 10000);                              // write data current output stream.                             response.outputstream.write(buffer, 0, length);                              // flush data html output.                             response.flush();                              buffer = new byte[10000];                             datatoread = datatoread - length;                         }                         else                         {                             //prevent infinite loop if user disconnects                             datatoread = -1;                         }                     }                 }                 catch (exception ex)                 {                     // trap error, if any.                     response.write("error : " + ex.message);                 }                                 {                     if (istream != null)                     {                         //close file.                         istream.close();                     }                     response.close();                 }

what have forgotten?

i remove line response.addheader("content-length", file.length.tostring());

please follow rfc2616:

the content-length entity-header field indicates size of entity-body, in decimal number of octets, sent recipient or, in case of head method, size of entity-body have been sent had request been get.

hope help.

edit:

by way, should make sure filepath variable using @ here apply server.mappath , file.name should not contains white space.

edit2:

base on comment, response.writefile not solution work , has many problem large file can take reference @ here . should apply response stream follow link below read file stream , put memory , send client link below:

how put webresponse memory stream?

or

http://forums.asp.net/t/1794834.aspx/1

edit 3:

your code posted here still not release ms word correctly, still keeping document that's reason why got exception comments.

please follow link below resolve problem.

disposing of microsoft.office.interop.word.application

or

http://code.msdn.microsoft.com/office/csautomateword-f422cae5


Comments

Post a Comment

Popular posts from this blog

php - Why I am getting the Error "Commands out of sync; you can't run this command now" -

the documentation of error mentioned in title says if commands out of sync; can't run command now in client code, calling client functions in wrong order. this can happen, example, if using mysql_use_result() , try execute new query before have called mysql_free_result(). can happen if try execute 2 queries return data without calling mysql_use_result() or mysql_store_result() in between. from here: http://dev.mysql.com/doc/refman/5.0/en/commands-out-of-sync.html but in first query not fetching data mysql database, inserting. , in second query getting data database. here code $connection = mysqli_connect("localhost","username","password","tbl_msgs"); if(mysqli_connect_errno($connection)) { die("failed connect mysql: " . mysqli_connect_error()); } $query = "insert users (total_comments, total_views) values ({$total_comments}, {$total_views});"; $query .= "insert msgs (no...
Read more

linux - Does gcc have any options to add version info in ELF binary file? -

i mean whether gcc can insert source code version infor elf binary section or similar. not want change source file, add info gcc option in makefile. you can emit version info text file, turn text file object file statically link executable. the first step simple have write code: script or write version info in format plain text file. write makefile rule produce version.o version.txt, using objcopy . you'll have object file 2 useful symbols defined in it: beginning , end of textual version info. add generated object executable, , you'll able access version 2 ways: running strings on binary, or writing code in application print version string (you'll need declare start , end symbols variables in header file).
Read more

java - Are there any classes that implement javax.persistence.Parameter<T>? -

i'm using named queries fetch entities database using jpa , hibernate , came across puzzling me: how come there no default implementations of javax.persistence.parameter interface? i rather impressed how @staticmetamodel used criteriabuilder in jpa2 meaning type safety , don't have mess around setting string names. wanted apply similar of jpa1 ejb's i'm working on: dealergroup_.class: public dealergroup_ { public parameter<integer> id = new parameterimpl<integer>("id"); /// etc... } dealergroupfacade.class: // ... public dealergroup fetch(integer id) { typedquery<dealergroup> query = em.createnamedquery("dealergroup.fetchbyid", dealergroup.class); query.setparameter(dealergroup_.id, query); return query.getsingleresult(); } // ... i surprised find there no implementations of parameter interface - of course, implement myself absence makes me suspicious may mistake using in way? should implementing parameter...
Read more