How to copy .png using FileSavePicker for wp 8.1

Question

How to copy *.png from appdata:/assets/images using FileSavePicker. I find this example File Save Picker - Save Edited Image (C# Metro app) but it does not work.

i have this code:

private async void OpenButton_Click(object sender, RoutedEventArgs e)
    {

        string path = @"\Assets\Logo.png";
        StorageFolder folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
        StorageFile file = await folder.GetFileAsync(path);

        // Show the picker
        FileSavePicker savePicker = new FileSavePicker();
        // Set the file that will be saved
        savePicker.SuggestedSaveFile = file;
        savePicker.SuggestedFileName = "Logo";
        savePicker.FileTypeChoices.Add("PNG", new List<string>() { ".png" });
        savePicker.PickSaveFileAndContinue();



    }

but he saves the file to 0 bytes

Is it to copy or to save? – Kulasangar Feb 20 '15 at 08:51 — Kulasangar, Feb 20 '15 at 08:51
I need to save the application to your phone – Max Bazanov Feb 20 '15 at 14:51 — Max Bazanov, Feb 20 '15 at 14:51

score 0 · Answer 1 · edited May 23 '17 at 12:20

0

Did you try out the sample from msdn? Where did you go wrong withe one you found?

FileSavePicker savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary;
// Dropdown of file types the user can save the file as
savePicker.FileTypeChoices.Add("Plain Text", new List<string>() { ".txt" });
// Default file name if the user does not type one in or select a file to replace
savePicker.SuggestedFileName = "New Document";

Source:

edited May 23 '17 at 12:20

Community

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answered Feb 20 '15 at 08:50

Kulasangar

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And where to write a file to save? Your code keeps file size 0 bytes ( – Max Bazanov Feb 20 '15 at 14:52
You could save it your local folder: https://msdn.microsoft.com/en-us/library/windows/apps/xaml/jj150592.aspx#wedge & have a look here for more http://stackoverflow.com/questions/24048626/filesavepicker-saving-0-bytye-file-windows-phone-8 – Kulasangar Feb 20 '15 at 14:55
the first link has no instructions where to write the path of the file that you want to save – Max Bazanov Feb 20 '15 at 15:30
You mean the comment which is in the above comment or the answer? – Kulasangar Feb 20 '15 at 15:35
I mean the comment above – Max Bazanov Feb 20 '15 at 15:37
So what does this `savePicker.SuggestedStartLocation = Windows.Storage.ApplicationData.LocalFolder;` states in that post? – Kulasangar Feb 20 '15 at 15:40
Seems like here it has been worked out : http://stackoverflow.com/questions/17571152/how-to-save-existing-storagefile-using-filesavepicker – Kulasangar Feb 20 '15 at 16:16

How to copy .png using FileSavePicker for wp 8.1

1 Answers1