public async void Save()
{
try
{
if (_file != null)
{
await _fileService.SaveAsync(_file);
_toastService.ShowToast(_file, "File succesfully saved.");
}
else
{
var savePicker = new Windows.Storage.Pickers.FileSavePicker();
savePicker.SuggestedStartLocation =
Windows.Storage.Pickers.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";
Windows.Storage.StorageFile file = await savePicker.PickSaveFileAsync();
if (file != null)
{
// Prevent updates to the remote version of the file until
// we finish making changes and call CompleteUpdatesAsync.
Windows.Storage.CachedFileManager.DeferUpdates(file);
// write to file
await Windows.Storage.FileIO.WriteTextAsync(file, file.Name);
// Let Windows know that we're finished changing the file so
// the other app can update the remote version of the file.
// Completing updates may require Windows to ask for user input.
Windows.Storage.Provider.FileUpdateStatus status =
await Windows.Storage.CachedFileManager.CompleteUpdatesAsync(file);
if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
{
await new Windows.UI.Popups.MessageDialog("File " + file.Name + " was saved.").ShowAsync();
}
else
{
await new Windows.UI.Popups.MessageDialog("File " + file.Name + " couldn't be saved.").ShowAsync();
}
}
else
{
await new Windows.UI.Popups.MessageDialog("Operation cancelled.").ShowAsync();
}
}
}
catch (Exception ex)
{
_toastService.ShowToast(_file, "Save failed. Error : " + ex.Message);
}
}
public async void Open()
{
// prompt a picker
var picker = new FileOpenPicker
{
ViewMode = PickerViewMode.List,
SuggestedStartLocation = PickerLocationId.DocumentsLibrary
};
picker.FileTypeFilter.Add(".txt");
var file = await picker.PickSingleFileAsync();
if (file == null)
{
//await new Windows.UI.Popups.MessageDialog("No file selected.").ShowAsync();
_ToastService.ShowToast("No file selected.");
}
else
{
File = await _FileService.LoadAsync(file);
}
}