I know this is going to sound stupid, but I got the upload file dialog to work perfectly in my Lightswitch Application, but I can't figure out how to download the file now that I've uploaded it.  I monkeyed around with some different code but no luck.  Help?

Thanks for using HSS Interlink and glad to hear you got the upload working.

As far as downloading, can explain your download scenario? Meaning do you want to download the raw stream into your application code or allow the user to download the file to their desktop?

To download to their desktop you have three options:

1. Download using the Interlink Download Dialog
2. Use the normal Browser (Open Inline) for files like pictures and pdf's
3. Use the normal Browser (Save As) to prompt the user to save the requested file

From the documentation: http://interlink.codeplex.com/documentation

To download a file directly to the browser (Inline) you can use the static method OpenFile
DownloadFileDialog.OpenFileInline(serverSideFileName);

To download a file directly to the browser as an attachment (Save As) you can also use the static method OpenFileAsAttachment
DownloadFileDialog.OpenFileAsAttachment(serverSideFileName);

Heres how to get it to work.

const string remoteFileStore = "/interlink/uploads/";
partial void DownloadFile_Execute()
{
	var item = this.Table1Items.SelectedItem;
	if (null == item) return;
	this.DownloadAFile(item.FileName);
}
private void DownloadAFile(string remoteFileName)
{
	var uri = new Uri(string.Format("{0}{1}", remoteFileStore, remoteFileName), UriKind.Relative);
	Dispatchers.Main.Invoke(() =>
	{
		HtmlPage.Window.Navigate(uri, "_new");
	});
}

NOTE: LightSwitch does not support the Interlink DownloadFileDialog.

And to confirm, you do not need the DownloadHandler as you will be downloading the file directly (bypassing Interlink).

Excellent, glad to hear you got it working. And sorry, forget to mentioned LS doesn't include a reference to the Browser dll by default.

The remoteFileStore should match your server side file store. Depending on your project structure it maybe different.

Also mine includes the trailign slash, so make sure the file name you're passing doesn't contain the slash to.

If put a break point on the uri creator, check the resolved value and then manually paste that into the browser and ensure it's correct.

then your remoteFileStore should "/lightswitch/reporting/interlink/uploads/"

you can go to that physical folder to confirm the path...

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No, the handler has nothing to do with the download.

Can you provide me the absolute path to the folder where the uploaded files are stored?

Example:

c:\inetpub\wwwroot\reporting\interlink\uploads\

If this is your absolute folder path then in LS, your remoteFileStore should be "/reporting/interlink/uploads/"

So to test from the browser you should be able to navigate to

http://yourapp:port/reporting/interlink/uploads/filename.ext

Now you have watch out for sub applications in IIS. If you web app is not a parent application then even though your physical path looks right, IIS is expecting mainapp/subapp/reporting instead of mainapp/reporting

manually put a file in the uploads folder you specified above. something simple like an empty text file (test.txt)

Then open your browser and go to http://localhost:port/reporting/interlink/uploads/test.txt

If that doesn't work try http://localhost:port/interlink/uploads/test.txt

If that doesn't work then restart visual studio and try again.

Once you can manually browse directly to a file in the folder then you can test LS & Interlink.

I'm not sure I understand your question.

Were you able to get to the file from your browser?

No - even if I turn on directory browsing, I can get to the file that way, but can't actually open it.

Ah - I can get to it in the root folder.  Let me try that for now.