asp.net mvc - Export to CSV from MVC Controller and View displays CSV raw data on Page -

-

i've got mvc view export excel working great, however, because i'm setting location.href leaving me page full of csv data rather neat grid results before user hit export button.

i'm trying think how change following script doing leave page alone. tried making call search go server again @ runtime user see's csv on webpage momentarily, not good.

any ideas appreciated, cheers

    $(function() {         $('#exportbutton').click(function() {             var url = $('#absolutepath').val() + 'waste.mvc/export';              var data = {                 searchtext: $('#searchtextbox').val().tostring(),                 searchtextsite: $('#searchtextboxsite').val().tostring(),                 startdate: $('#startdate').val(),                 enddate: $('#enddate').val()             };             $('#resultslist').load(url, data, function() {                 $('#loadinggif').empty();                 location.href = url + "?searchtext=" + data.searchtext + "&searchtextsite=" + data.searchtextsite + "&startdate=" + data.startdate + "&enddate=" + data.enddate;             });             //search(); fixes because grid displayed again after csv results         });     });

my controller code:

    public filestreamresult export(string searchtext, string searchtextsite, string startdate, string enddate)     {          var searchresults = getsearchresults(searchtext, searchtextsite, startdate, enddate);         httpcontext.response.addheader("content-disposition", "attachment; filename=export.csv");          var sw = new streamwriter(new memorystream());          sw.writeline("\"ref\",\"source\",\"collected\"");         foreach (var line in searchresults.tolist())         {             sw.writeline(string.format("\"{0}\",\"{1}\",\"{2}\"",                                        line.wasteid,                                        line.sourcewastetypeid.todescription(),                                        line.collecteddate.toshortdatestring()));         }         sw.flush();         sw.basestream.seek(0, seekorigin.begin);          return new filestreamresult(sw.basestream, "text/csv");         // return file(sw.basestream, "text/csv", "report.csv"); renders same result      }

you have controller action return csv file attachment (it use content-disposition: attachment; filename=report.csv http header):

public actionresult getcsv() {     byte[] csvdata = ...     return file(csvdata, "text/csv", "report.csv"); }

now can safely window.location.href = '/reports/getcsv'; , user prompted download csv report stay on same page.


Comments

Post a Comment

Popular posts from this blog

linux - Using a Cron Job to check if my mod_wsgi / apache server is running and restart -

-
my group , running server based upon django , uses mod_wsgi run apache server. not working on project after over, attempting set cronjob similar functionality check if apache server has shut down(system restart or power failure), , if has, restart server me. i've found documentation on how check if apache server down , restart server if is, our server uses https , our start command pretty verbose. can use functionality provided in these examples: https://askubuntu.com/questions/277389/cron-job-to-restart-apache https://www.digitalocean.com/community/tutorials/how-to-use-a-simple-bash-script-to-restart-server-programs or need more complicated process make happen? the command use start server is python manage.py runmodwsgi --host 0.0.0.0 --port 8001 --https-port 8000 --ssl-certificate (certificate location) --server-name (domain name) i'm pretty new linux , using both mod-wsgi apache appreciated. you better off using --setup-only option mod_wsgi-expres
Read more

actionscript 3 - TweenLite does not work with object -

-
i got following problem: i have object called tempscore game. this object blitted canvas renderer via copypixels method. object not display object. it's score-object (self made). score-object extends object called basicblitarrayobject. basicblitarrayobject extends eventdispatcher (therefore no display object). i tried apply several different tweenlite-plugins tempscore-object (i.e. transformaroundcenter, colormatrixfilter, etc.). nothing happens. absolutely nothing. sometimes error messages (when plugin requires display object , object not display object). far good. according greensock (maker of tweenlite) engine can tween numeric property of object. when plugin transformaroundcenter requires display object tweening have modify plugin working non-display object (tempscore). can't because it's way hard me. my game rests upon code: http://www.8bitrocket.com/book/ch11_blastermines.zip try apply tweenlite object called tempmine inside game class blastermines.
Read more

jQuery Ajax Render Fragments OR Whole Page -

-
i'm in throes of building application wraps mess of legacy code. page working on, need substitute fragment divs constructed on back-end -- or else need replace entire page altogether. idea there dynamically controlled flow needs satisfied before can forward legacy product. substituting fragments works fine, seen in below my_body_content swap. trouble comes when i'm trying render not fragment, whole page, in "body" swap. @ point page goes blank. i want similar errors returned server. want nice rest 404 error messages displayed on screen, legacy-product 404s show in legacy-product 404 page. yes, requirements project weird. that's not problem can fix. here's jquery invocation, names changed protect guilty: $.ajax({ url: "places/things", type: "post", data: json.stringify(somebadassobject), datatype: "text", accepts: "text/html", contenttype: "application/json; charset=
Read more