Sharing charm attach a file

Question

i have an application that should provide sharing possibility, so here is my code:

DataRequestDeferral deferral = e.Request.GetDeferral();
var file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(@"Utils\shareappemail.html");
 var file2 = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync("SCLogFile.txt");
 var stream = await file.OpenReadAsync();
 var rdr = new StreamReader(stream.AsStream());
 var contents = await rdr.ReadToEndAsync();
 DataPackage requestData = e.Request.Data;
 requestData.Properties.Title = "Bla";
 requestData.Properties.Description = "BlablaBla"; // The description is optional.
 requestData.SetHtmlFormat(HtmlFormatHelper.CreateHtmlFormat(contents));
 List<IStorageItem> imageItems = new List<IStorageItem>();
 imageItems.Add(file2);
 requestData.SetStorageItems(imageItems);
 deferral.Complete();

On my developer PC this thing works and file is being attached. But on my tablet it doesn't attach the file - why?

My two tablets run - Windows 8 Pro and Windows 8 Enterprise - both don't attach files. Both PC's running Windows 8 Pro - attach.

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Foma

Answer 1

DataRequestDeferral deferral = e.Request.GetDeferral();
var file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(@"Utils\shareappemail.html");
 var file2 = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync("SCLogFile.txt");
 var stream = await file.OpenReadAsync();
 var rdr = new StreamReader(stream.AsStream());
 var contents = await rdr.ReadToEndAsync();
 DataPackage requestData = e.Request.Data;
 requestData.Properties.Title = "Bla";
 requestData.Properties.Description = "BlablaBla"; // The description is optional.
 //requestData.SetHtmlFormat(HtmlFormatHelper.CreateHtmlFormat(contents));
 List<IStorageItem> imageItems = new List<IStorageItem>();
 imageItems.Add(file2);
 requestData.SetStorageItems(imageItems);
 deferral.Complete();

But if i comment out this line the file is being attached! WHY? HOW? But i need HTML content + attached file: 

requestData.SetHtmlFormat(HtmlFormatHelper.CreateHtmlFormat(contents));

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Foma

Answer 2

maybe the tavlets are slower? try to use a dataprovider instead of setting the data directly.

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Answer 3

It sounds interesting and could be something if not this thing:

Lets say i don't create HTML content:

DataRequestDeferral deferral = e.Request.GetDeferral();
 var file2 = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync("SCLogFile.txt");
 DataPackage requestData = e.Request.Data;
 requestData.Properties.Title = "Bla";
 requestData.Properties.Description = "BlablaBla"; // The description is optional.
requestData.SetText("SAMPLE TEXT");
 List<IStorageItem> imageItems = new List<IStorageItem>();
 imageItems.Add(file2);
 requestData.SetStorageItems(imageItems);
 deferral.Complete();

In this code sample message Title, description adn text aren't displayed. But attachments are added - it can't be a timing issue because title setting is being processed firstly, so if attachemnt is added than Title should be also displayed. But on PC all is fine

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Foma

Answer 4

Dave,

Also, i have tried you'r solution, but ran into a problem that something isn't working:

private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs e) 
{ 
   e.Request.Data.Properties.Title = "THIS IS A TITLE"; 
   e.Request.Data.Properties.Description = "THIS IS A DESCRIPTION";    
   e.Request.Data.SetDataProvider(StandardDataFormats.StorageItems, OnDataReq); 
} 

internal async void OnDataReq(DataProviderRequest request) 
{ 
   var defferal = request.GetDeferral(); 
   var file = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync("SCLogFile.txt"); request.SetData(RandomAccessStreamReference.CreateFromFile(file)); 
   defferal.Complete(); 
}

And app says: There was a problem with data App1

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Foma

Answer 5

Ok, now i have updated one of my tablets to Windows 8.1 and my first code works.

Does this mean that it was Windows 8.0 issue? And what should i say to customers? Sorry but Windows 8 is a bit buggy, and all of your Enterprice devices are useless - buy new ones???!!!

What the HELL?!

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Foma

Answer 6

you need to set the filetypes property when using a dataprovider.

private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs e)
        {
            e.Request.Data.Properties.Title = "THIS IS A TITLE";
            e.Request.Data.Properties.Description = "THIS IS A DESCRIPTION";
            e.Request.Data.Properties.FileTypes.Add(".txt");
            e.Request.Data.SetDataProvider(StandardDataFormats.StorageItems, OnDataReq);

        }

the OndataRequested method has to be completed very fast. so i think its timinig issue and maybe 8.1 bit faster dan 8.0? 

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Answer 7

you need to set the filetypes property when using a dataprovider.

private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs e)
        {
            e.Request.Data.Properties.Title = "THIS IS A TITLE";
            e.Request.Data.Properties.Description = "THIS IS A DESCRIPTION";
            e.Request.Data.Properties.FileTypes.Add(".txt");
            e.Request.Data.SetDataProvider(StandardDataFormats.StorageItems, OnDataReq);

        }

the OndataRequested method has to be completed very fast. so i think its timinig issue and maybe 8.1 bit faster dan 8.0? 

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Thanks, i will test that monday, and post results here.

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Foma

Answer 8

Sorry, but that wasn't an answer! Dave addition helped me to get code working, but still, i have to choose between filled content or attached file! How my code, Dave's code works on Windows 8.1 but Windows 8 not

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Foma