c# - File upload not triggering handler? -

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i'm not sure why, handler isn't getting triggered. (i'm still new silverlight way.) following tutorial here. i'm not sure did wrong... thanks. [using silverlight 3.0, vs2008]

mainpage.xaml

<usercontrol x:class="multiselectfileuploader.mainpage"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"      mc:ignorable="d" d:designwidth="640" d:designheight="480"> <grid x:name="layoutroot">     <grid.rowdefinitions>         <rowdefinition height="auto"/>         <rowdefinition height="auto"/>         <rowdefinition height="auto"/>     </grid.rowdefinitions>      <textbox x:name="tbul" grid.row="0" width="150" margin="0 0 250 0"></textbox>     <button x:name="btnul" grid.row="0" width="100" click="btnul_click"></button>      <listbox grid.row="1" width="200" height="25" margin="0 0 200 0"></listbox>     <button grid.row="1" width="50" margin="50 0 0 0"></button>      <textbox grid.row="2" width="125" margin="0 0 275 0"></textbox>     <textbox grid.row="2" width="125" margin="0 0 25 0"></textbox> </grid> </usercontrol>

mainpage.xaml.cs

using system; using system.collections.generic; using system.linq; using system.net; using system.windows; using system.windows.controls; using system.windows.documents; using system.windows.input; using system.windows.media; using system.windows.media.animation; using system.windows.shapes; using system.io;  namespace multiselectfileuploader {     public partial class mainpage : usercontrol     {         public mainpage()         {             initializecomponent();             btnul.content = "upload";         }          protected void btnul_click(object sender, eventargs e)         {             openfiledialog ofd = new openfiledialog() { multiselect = false };              if ((bool)ofd.showdialog()) // if file selected             {                 uploadfile(ofd.file.name, ofd.file.openread());             }         }          private void uploadfile(string filename, stream data)         {             uribuilder ub = new uribuilder("http://localhost:64168/receiver.ashx");             ub.query = string.format("filename={0}", filename);              webclient wc = new webclient();             wc.openreadcompleted += (sender, e) =>             {                 pushdata(data, e.result);                 e.result.close();                 data.close();             };             wc.openwriteasync(ub.uri);         }          private void pushdata(stream input, stream output)         {             byte[] buffer = new byte[4096];             int bytesread;              while((bytesread = input.read(buffer, 0, buffer.length)) != 0)                 output.write(buffer, 0, bytesread);         }     } }

receiver.ashx

<%@ webhandler language="c#" codebehind="receiver.ashx.cs" class="multiselectfileuploader.web.receiver" %>  using system; using system.collections.generic; using system.linq; using system.web; using system.web.services; using system.io;   public class receiver : ihttphandler {      public void processrequest(httpcontext context)     {         string filename = context.request.querystring["filename"].tostring();          using (filestream fs = file.create(context.server.mappath("~/temp/" + filename)))         {             savefile(context.request.inputstream, fs);         }     }      private void savefile(stream stream, filestream fs)     {         byte[] buffer = new byte[4096];         int bytesread;         while ((bytesread = stream.read(buffer, 0, buffer.length)) != 0)             fs.write(buffer, 0, bytesread);     }      public bool isreusable     {         { return false; }     } }

i'm dumb...

the line... wc.openreadcompleted += (sender, e) =>

should be... wc.openwritecompleted += (sender, e) =>


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