Drag Drop data into Windows Explorer

[BradBrigade]

I want to drag an object from my application into Windows Explorer and
have it create a new file, but the object I want to drop is not a file
to begin with. It seems the only thing I can do is create a temporary
file, then call DoDragDrop with the temp file's name, then delete the
temp file after. The problem is that it is a big process to create the
file, and I don't want to do that until the drop has been done and
explorer requests the file.

I know it can be done because Outlook does it with email messages, and
checking the DataObject's DataFormats reveals that it is not dragging a
pre-existing file. But, it has a bunch of crap that I have no idea
about. "FileGroupDescr iptor", "FileConten ts", etc... and I can't find
out how to use these things in a C# app. It seems they are only use in
C++.

I've been searching for the better half of a day and am getting
nowhere. Can I have it drag a stream and a file name and have explorer
build the file from that? What can I do? Can someone point me
somewhere where I might get some help for this?

Thanks a lot,
-Brad

[Stoitcho Goutsev \(100\)]

Re: Drag Drop data into Windows Explorer

BradBrigade,

I don't want to disappoint you, but I have been looking at this 2 years ago
and I came to the conclusion that this is not possible with .NET. I don't
remember the details, but just to know there is a big chances that this may
not be possible at all.


--

Stoitcho Goutsev (100)

"BradBrigad e" <sizzlefist@hot mail.com> wrote in message
news:1137183285 .278804.282240@ g14g2000cwa.goo glegroups.com.. .[color=blue]
>I want to drag an object from my application into Windows Explorer and
> have it create a new file, but the object I want to drop is not a file
> to begin with. It seems the only thing I can do is create a temporary
> file, then call DoDragDrop with the temp file's name, then delete the
> temp file after. The problem is that it is a big process to create the
> file, and I don't want to do that until the drop has been done and
> explorer requests the file.
>
> I know it can be done because Outlook does it with email messages, and
> checking the DataObject's DataFormats reveals that it is not dragging a
> pre-existing file. But, it has a bunch of crap that I have no idea
> about. "FileGroupDescr iptor", "FileConten ts", etc... and I can't find
> out how to use these things in a C# app. It seems they are only use in
> C++.
>
> I've been searching for the better half of a day and am getting
> nowhere. Can I have it drag a stream and a file name and have explorer
> build the file from that? What can I do? Can someone point me
> somewhere where I might get some help for this?
>
> Thanks a lot,
> -Brad
>[/color]

[D. Yates]

Re: Drag Drop data into Windows Explorer

Try looking at all the drag and drop examples here:

http://www.codeproject.com/

You might find one that points you in the right direction.

Dave