public static async Task<RecipeBox> CreateNewRecipeBoxAsync()
{
var savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary;
// Dropdown of file types the user can save the file as
savePicker.FileTypeChoices.Add("Recipe Box", new List<string>() { ".rcpbx" });
// 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 blank RecipeBox to file
RecipeBox rb = new RecipeBox(file.Name);
rb.LastPath = file.Path;
string rbJson = JsonConvert.SerializeObject(rb);
await Windows.Storage.FileIO.WriteTextAsync(file, rbJson);
// 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)
{
return rb;
}
else
{
return null;
}
}
else
{
//__could insert code here for case of picker cancelled
return null;
}
}
public static async Task SaveRecipeBox(RecipeBox recipeBox)
{
string path = recipeBox.LastPath;
try
{
string recipeBoxJson = JsonConvert.SerializeObject(recipeBox);
StorageFile file = await StorageFile.GetFileFromPathAsync(path);
await FileIO.WriteTextAsync(file, recipeBoxJson);
return;
}
catch (Exception)
{
///todo: have user pick new lolcation/name
}
}
