Uploading files to Web server

[FusionGuy]

I've created a file uploading handler, implemented as an httpHandler. Each
time I attempt to upload a file, or files, my HttpContext.Req uest.Files
property never contains the files that were uploaded. Here's a snippet of
my handler code:

// *** BEGIN HANDLER CODE *** //
public class AutoUpload : IHttpHandler
{
public void ProcessRequest( HttpContext context)
{
HttpRequest request = context.Request ;
HttpResponse response = context.Respons e;
HttpFileCollect ion coll = context.Request .Files;

if (request.Files. Count > 0)
{
// code to save files locally...
}
}
}
// *** END HANDLER CODE *** //

I'm posting files using the normal "<input type="file">" method and also
ensuring that my enctype is set to "multipart/form-data" Just to be as
verbose as possible, here's a snippet of the client-side code:

// *** BEGIN CLIENT CODE *** //
<form id="Form1" method="post" enctype="multip art/form-data"
action="http://localhost/UploaderService/Uploader.aspx">
<input type="file" id="txtUpload" style="WIDTH:25 0px">
<br>
<br>
<input type="submit" value="Post It">
</form>
// *** END CLENTCODE *** //

I've checked to make sure that I have Write permissions to the target
directory and also have Write permissions set to allowed in IIS. Is there
something I've missed here?? Thanks in advance.

[Cowboy (Gregory A. Beamer) - MVP]

RE: Uploading files to Web server

The norm is to have the file input 'runat="server" '. You can then get its
information and upload. Sample scripts:

ASPX page

<INPUT id="filUpload" type="file" name="filUpload " runat="server">

CodeBehind on upload button click event

//C#
if (filUpload.Post edFile != null)
{
filUpload.Poste dFile.SaveAs(lo cationOnWebServ er + fileName);
}

'VB.NET
If Not filUpload.Poste dFile Is Nothing Then
filUpload.Poste dFile.SaveAs(lo cationOnWebServ er + fileName);
End If

Or, if you want more control:

//C#
if (filUpload.Post edFile != null)
{
//Get the file
HttpPostedFile file = fileUpload.Post edFile;
Int32 fileLength = file.ContentLen gth;
string fileName = file.FileName;
byte[] buffer = new byte[fileLength];
file.InputStrea m.Read(buffer, 0, fileLength);

//Save the file (can be placed in another routine)
FileStream newFile = new FileStream(path , FileMode.Create );
newFile.Write(b uffer, 0, buffer.Length);
newFile.Close() ;
}

'VB.NET
If Not filUpload.Poste dFile Is Nothing Then
Dim file As HttpPostedFile = filUpload.Poste dFile

'Find its attributes
Dim fileLength As Int32 = file.ContentLen gth
Dim fileName As String = file.FileName

'Now let's try to save this file
Dim buffer(fileLeng th) As Byte
file.InputStrea m.Read(buffer, 0, fileLength)

Dim newFile As New FileStream(path , FileMode.Create )
newFile.Write(b uffer, 0, buffer.Length)
newFile.Close()
End If


Examples of each

http://www.aspheute.com/english/20000802.asp

http://www.codeproject.com/aspnet/fileupload.asp

--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

*************** ************
Think Outside the Box!
*************** ************


"FusionGuy" wrote:
[color=blue]
> I've created a file uploading handler, implemented as an httpHandler. Each
> time I attempt to upload a file, or files, my HttpContext.Req uest.Files
> property never contains the files that were uploaded. Here's a snippet of
> my handler code:
>
> // *** BEGIN HANDLER CODE *** //
> public class AutoUpload : IHttpHandler
> {
> public void ProcessRequest( HttpContext context)
> {
> HttpRequest request = context.Request ;
> HttpResponse response = context.Respons e;
> HttpFileCollect ion coll = context.Request .Files;
>
> if (request.Files. Count > 0)
> {
> // code to save files locally...
> }
> }
> }
> // *** END HANDLER CODE *** //
>
> I'm posting files using the normal "<input type="file">" method and also
> ensuring that my enctype is set to "multipart/form-data" Just to be as
> verbose as possible, here's a snippet of the client-side code:
>
> // *** BEGIN CLIENT CODE *** //
> <form id="Form1" method="post" enctype="multip art/form-data"
> action="http://localhost/UploaderService/Uploader.aspx">
> <input type="file" id="txtUpload" style="WIDTH:25 0px">
> <br>
> <br>
> <input type="submit" value="Post It">
> </form>
> // *** END CLENTCODE *** //
>
> I've checked to make sure that I have Write permissions to the target
> directory and also have Write permissions set to allowed in IIS. Is there
> something I've missed here?? Thanks in advance.
>
>
>[/color]

[FusionGuy]

Re: Uploading files to Web server

Hi Cowboy,

Thanks for your post, but unfortunately I need to create a more generic file
upload service than that, hence why my code doesn't use server-side web
controls.


"Cowboy (Gregory A. Beamer) - MVP" <NoSpamMgbworld @comcast.netNoS pamM> wrote
in message news:C92CC458-D33A-43D5-96C3-82A49473B6DF@mi crosoft.com...[color=blue]
> The norm is to have the file input 'runat="server" '. You can then get its
> information and upload. Sample scripts:
>
> ASPX page
>
> <INPUT id="filUpload" type="file" name="filUpload " runat="server">
>
> CodeBehind on upload button click event
>
> //C#
> if (filUpload.Post edFile != null)
> {
> filUpload.Poste dFile.SaveAs(lo cationOnWebServ er + fileName);
> }
>
> 'VB.NET
> If Not filUpload.Poste dFile Is Nothing Then
> filUpload.Poste dFile.SaveAs(lo cationOnWebServ er + fileName);
> End If
>
> Or, if you want more control:
>
> //C#
> if (filUpload.Post edFile != null)
> {
> //Get the file
> HttpPostedFile file = fileUpload.Post edFile;
> Int32 fileLength = file.ContentLen gth;
> string fileName = file.FileName;
> byte[] buffer = new byte[fileLength];
> file.InputStrea m.Read(buffer, 0, fileLength);
>
> //Save the file (can be placed in another routine)
> FileStream newFile = new FileStream(path , FileMode.Create );
> newFile.Write(b uffer, 0, buffer.Length);
> newFile.Close() ;
> }
>
> 'VB.NET
> If Not filUpload.Poste dFile Is Nothing Then
> Dim file As HttpPostedFile = filUpload.Poste dFile
>
> 'Find its attributes
> Dim fileLength As Int32 = file.ContentLen gth
> Dim fileName As String = file.FileName
>
> 'Now let's try to save this file
> Dim buffer(fileLeng th) As Byte
> file.InputStrea m.Read(buffer, 0, fileLength)
>
> Dim newFile As New FileStream(path , FileMode.Create )
> newFile.Write(b uffer, 0, buffer.Length)
> newFile.Close()
> End If
>
>
> Examples of each
> http://www.aspheute.com/english/20000802.asp
> http://www.codeproject.com/aspnet/fileupload.asp
>
> --
> Gregory A. Beamer
> MVP; MCP: +I, SE, SD, DBA
>
> *************** ************
> Think Outside the Box!
> *************** ************
>
>
> "FusionGuy" wrote:
>[color=green]
>> I've created a file uploading handler, implemented as an httpHandler.
>> Each
>> time I attempt to upload a file, or files, my HttpContext.Req uest.Files
>> property never contains the files that were uploaded. Here's a snippet
>> of
>> my handler code:
>>
>> // *** BEGIN HANDLER CODE *** //
>> public class AutoUpload : IHttpHandler
>> {
>> public void ProcessRequest( HttpContext context)
>> {
>> HttpRequest request = context.Request ;
>> HttpResponse response = context.Respons e;
>> HttpFileCollect ion coll = context.Request .Files;
>>
>> if (request.Files. Count > 0)
>> {
>> // code to save files locally...
>> }
>> }
>> }
>> // *** END HANDLER CODE *** //
>>
>> I'm posting files using the normal "<input type="file">" method and also
>> ensuring that my enctype is set to "multipart/form-data" Just to be as
>> verbose as possible, here's a snippet of the client-side code:
>>
>> // *** BEGIN CLIENT CODE *** //
>> <form id="Form1" method="post" enctype="multip art/form-data"
>> action="http://localhost/UploaderService/Uploader.aspx">
>> <input type="file" id="txtUpload" style="WIDTH:25 0px">
>> <br>
>> <br>
>> <input type="submit" value="Post It">
>> </form>
>> // *** END CLENTCODE *** //
>>
>> I've checked to make sure that I have Write permissions to the target
>> directory and also have Write permissions set to allowed in IIS. Is
>> there
>> something I've missed here?? Thanks in advance.
>>
>>
>>[/color][/color]