c# - Uploading images with asp.net generic handler -


i trying upload multiple files using following code.

html & jquery

<%@ page language="c#" autoeventwireup="true" codebehind="webform1.aspx.cs" inherits="fileupload.webform1" %>  <!doctype html>  <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server">     <title></title>      <script src="scripts/jquery-1.8.2.min.js"></script>     <script src="scripts/jquery-ui-1.8.24.min.js"></script>     <link href="content/themes/base/jquery.ui.all.css" rel="stylesheet" /> </head> <body>     <form id="form1" runat="server">         <asp:fileupload id="fileupload1" runat="server" allowmultiple="true" />         <br />         <br />         <asp:button id="button1" runat="server" text="upload selected file(s)" />         <div id="progressbar"></div>     </form>     <script type="text/javascript">         $(document).ready(function () {             $("#progressbar").progressbar({ value: 0 });             $("#button1").click(function (evt) {                  var fileupload = $("#fileupload1").get(0);                 var files = fileupload.files;                  var data = new formdata();                 (var = 0; < files.length; i++) {                     data.append(files[i].name, files[i]);                 }                  var options = {};                 options.url = "upload.ashx";                 options.type = "post";                 options.data = data;                 options.asyn = true;                 options.contenttype = false;                 options.processdata = false;                 options.datatype = "application/json; charset=utf-8";                 options.success = function (data) {                     var length = data.length;                     (var = 0; < length; i++) {                         updateprogress();                     }                      $("#progressbar").progressbar("value", 100);                 };                 options.error = function (err) { alert(err.statustext); };                  $.ajax(options);                  evt.preventdefault();             });         });          function updateprogress() {             var value = $("#progressbar").progressbar("option", "value");             if (value < 100) {                 $("#progressbar").progressbar("value", value + 1);             }         }     </script> </body> </html>

c# handler

using system; using system.collections.generic; using system.linq; using system.web;  namespace fileupload {     /// <summary>     /// summary description upload     /// </summary>     public class upload : ihttphandler     {          public void processrequest(httpcontext context)         {             if (context.request.files.count > 0)             {                 httpfilecollection files = context.request.files;                 (int = 0; < files.count; i++)                 {                     httppostedfile file = files[i];                     string fname = context.server.mappath("~/upload/" + file.filename);                     file.saveas(fname);                 }             }             context.response.contenttype = "text/plain";             context.response.write("file(s) uploaded successfully!");         }          public bool isreusable         {                         {                 return false;             }         }     } }

i have jquery ui progress bar updates based on percentage completed. upload 1 file. when select multiple files upload, gives internal server error. progress bar not working @ in either of cases (uploading 1 file or multiple file)

could have , wrong in code?

thanks,

update

i got multiple files issues sorted. still couldnt progress bar updating.


Comments

Post a Comment

Popular posts from this blog

image - ClassNotFoundException when add a prebuilt apk into system.img in android -

i'm in trouble add prebuilt apk system.img based taiwan mtk android phone platform, when push apk onto device,after reboot phone,the apk can installed succecessfully,but if add apk alps/out/target/product/$prj/system/app or vendor/mediatek/$prj/artifacts/out/target/product/$prj/system/app ,and produce system.img,the apk can't installed normally,the logcat say: a.lang.runtimeexception: unable instantiate activity componentinfo{com.sec.android.widgetapp.ap.hero.accuweather.widget/com.sec.android.widgetapp.ap.hero.accuweather.widget.weatherclock}: java.lang.classnotfoundexception: com.sec.android.widgetapp.ap.hero.accuweather.widget.weatherclock. can tell me what's problem ? when package manager installs apps part of system partition different installing apps on data partition. looks app using libraries somewhere else. when install on data lib directory created in apps data directory , symlinked /data/app-lib/. when apps installed on system it's expecte...
Read more

I need to import mysql 5.1 to 5.5? -

i have mysql 5.1 database , need import localhost running 5.5. how import 5.5 or downgrade mysql? install phpmyadmin 5.1 os: http://www.wikihow.com/install-phpmyadmin-on-your-windows-pc or https://www.digitalocean.com/community/articles/how-to-install-and-secure-phpmyadmin-on-ubuntu-12-04 then login, click on database, hit export, , export in sql format (quick fine). import .sql file 5.5 server (after installing phpmyadmin) logging in clicking database , hit import. hope helps!
Read more

Java, Hibernate, MySQL - store UTC date-time -

i saw here on few related questions (like this one , of course, this one )... essentially, want store date-time utc, , let application user choose time zone wants display date-time in. since seems date-time fields affected underlying jdbc driver, wonder if acceptable way go storing utc date-time: set both mysql , application server machine utc time zone (no need separate) both mysql , jvm should pick underlying system time settings (if not instructed otherwise) use datetime table columns on mysql side use java.util.date corresponding mapping on hibernate side (i guess java.sql.timestamp used too) let application worry interpreting date-time fields - i.e. let user choose preferred time zone is ok? edit clarify - here meant refer timestamps created strictly on server (e.g.date-time of record creation). application server instantiates date objects (new date() equals current date-time on server, , time zone agnostic). if client user wants supply date searching/filte...
Read more