I am developing a multi file uploader user control.
after researching for it. the trick is to build a custom HttpHandler to perform the upload process from the context.request.files.
here is the code for my handler:
namespace PSUpload
{
///<summary>
/// Custom HttpHandler to perform uploading files from client
/// to server.
///</summary>
public class PSUploader : IHttpHandler
{
#region Member Variables
private string dirPath = string.Empty;
private DirectoryInfo dir = null;
private string baseLocation = string.Empty;
#endregion
#region Constructor
///<summary>
/// constructor, assing the dirPath string to the AttachPath
/// which is set in the web.config.
/// instantiate the dir DirectoryInfo to check if the directory exist
/// or not.
/// assing the baselocation string to the DirectoryInfo dir.
///</summary>
public PSUploader()
{
dirPath = ConfigurationSettings.AppSettings"AttachPath"].ToString();
dir = new DirectoryInfo(dirPath);
//create the directory if it does not exist.
if (!dir.Exists)
{
dir.Create();
}
baseLocation = dir.ToString();
}
#endregion
#region ProcessRequest
///<summary>
/// called when a page is requested.
/// foreach posted file in the context. save the file to server(upload it).
///</summary>
///<param name="context"></param>
public void ProcessRequest(HttpContext context)
{
if (context.Request.Files.Count > 0)
{
for (int indx = 0 ; indx < context.Request.Files.Count ; indx++)
{
HttpPostedFile file = context.Request.Files[indx];
if (file.ContentLength > 0)
{
file.SaveAs(baseLocation + file.FileName);
}
}
}
}
#endregion
#region IsReusable
public bool IsReusable
{
get
{
return true;
}
}
#endregion
}
}
after that i have registered my handler in the web.config file using the following line:
<httpHandlers>
<addverb="*"path="*.aspx"type="PSUpload.PSUploader,PSUpload"/>
</httpHandlers>
the problem is when i run the application, i just get an empty page without the user control or anything. when i view source code from the browser. i just get the following:
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=windows-1256"></HEAD>
<BODY></BODY></HTML>
i dont know what the problem is.
does anyone has a clue of what the problem seems to be? is there anything missing in my code?
please help
thanx.
Unsolved 
