Drag & Drop from Explorer on ASP.NET / VB.NET Web Page

  • Thread starter Thread starter nak
  • Start date Start date
N

nak

Hi there,

In the Windows Live SkyDrive, there is a drag and drop box for dragging
files from Explorer, onto the web page. I would like to know if anyone has
information on how to implement this kind of functionality as the only
examples I can find seem to restrict the drag and drop operation for within
the web page only.

Thanks for your time in advance!

Nick.
 
What does Windows Live SkyDrive have to do with Visual Basic .NET?

ASP.NET / VB.NET, the page is aspx web page.

Maybe you didn't read the subject title correctly. Or are you just
trolling?

Nick.
 
No, I'm not trolling (thanks for asking). I did just misread your question
though. I thought you were asking a question specifically about Windows
Live SkyDrive.

Sorry.

I believe the operation you are talking about is implemented more at the
Windows level than at the specific web page.

-Scott
 
Hi Scott,
No, I'm not trolling (thanks for asking). I did just misread your
question though. I thought you were asking a question specifically about
Windows Live SkyDrive.

Sorry.

I believe the operation you are talking about is implemented more at the
Windows level than at the specific web page.
Click to expand...

Well one of the main reasons I'm not sure it is that low-level is that I
wasn't prompted to install any ActiveX controls, unless it was already
installed of course. I did try a similar implementation a while back using
ActiveX but security features in Windows just wouldn't allow me to do this.

Aaha, I've just tested with Firefox and it's come up with 5 bland HTML
input boxes. So I can only presume that Microsoft are bypassing their own
security model in favor of their own solutions! Awesome :(

Nick.
 
I believe that when you've encountered this behavior before (Windows Live),
you were, in fact, using objects that are already present in the OS, and so
you wouldn't get prompted to use them.

Instead of a web control allowing drag and drop, I believe it's a Windows
object that just sees IE and Windows Explorer as 2 Windows applications.

-Scott
 
Hi Scott,
I believe that when you've encountered this behavior before (Windows
Live), you were, in fact, using objects that are already present in the
OS, and so you wouldn't get prompted to use them.

Instead of a web control allowing drag and drop, I believe it's a Windows
object that just sees IE and Windows Explorer as 2 Windows applications.
Click to expand...

I guess that may be promising that it might be possible to leverage it
somehow, I'll keep plugging at it, many thanks for your time.

Nick.
 
If memory serves, in a Windows environment, the ability to drag and drop
across applications is handled by Object Linking and Embedding (OLE) and in
the past, when I've built VB 6 Windows based apps, I've used the OLE control
to allow this behavior. But again, this is a Windows control, not a Web
control. Only the OS can manage drag and drop between non related
applications.

-Scott
 
Here:

http://en.wikipedia.org/wiki/Windows_Live_SkyDrive

it says this:

"Optionally, an ActiveX-based tool can be installed to allow drag-and-drop
uploading from Windows Explorer."


It would have to be some kind of installed
software. What's really going on has to be
an FTP operation or something similar. The
drag-drop is just a GUI nicety. In the same
way, most FTP programs provide drag-drop,
and Microsoft's FrontPage WYSIYWG editor
used to let you pretend to "edit pages on the
server". But no matter how the program GUI
makes it look, somewhere behind the scenes
there has to be a basic conversation with the
server and a file upload operation.

I'd guess that if you deal with "SkyDrive" as
a webpage in IE then the drag/drop recognition
might be provided by a BHO that checks the
document location when something is dropped
onto IE, and goes into action uploading if the
location is your SkyDrive page.
 
Hello Nick,

You might already know it, but just a quick notice:

The managed support service of the newsgroup
microsoft.public.dotnet.languages.vb is now available instead on Visual
Basic General:
http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/threads. Would you
please repost the question in the forum with the Windows Live ID used to
access your Subscription benefits? Our engineers will assist you in the new
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information about the migration. In the future, please post your
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Regards,
Jie Wang

Microsoft Online Community Support

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