[UWP] "Could not find a part of the path"

Question

Hello,

In the following scenario:

StorageFolder folder1 = // from folder picker

StorageFolder fold2 = // from folder picker

await Task.Run(()

{

    Directory.Move(folder1.Path, folder2.Path);

    // same error if: Directory.Move(folder1.Path, Path.Combine(folder2.Path + @"\NewDir"));  // NewDir doesn't exist

});

I always got exception "Could not find a part of the path C:\\xxx" where xxx is the top folder name in folder2.

Any idea why?

Thanks!

Answer 1

Use StorageFolder methods instead of Directory.Move. The StorageFolder version goes through the file broker to use the permissions granted by the folder picker. The Directory version uses the app's direct permissions, which it doesn't have for paths outside of its ApplicationData folder. There isn't a direct Move method, but you can build it from the lower level methods.

See my blog entry Skip the path: stick to the StorageFile

Answer 2

Thanks for your reply!

I checked StorageFolder before but didn't know how to achieve the goal. Just checked your blog still don't know what to do.

What I wanted is to move one folder to another, just as what Directory.Move does.

Could you please tell me how to make it work using StorageFolder version?

Many thanks!

Answer 3

What part are you having trouble with?

StorageFolder doesn't have an explicit "Move", so you'll have to break the option down: Create the new folder then move the contents.

Answer 4

The "Move" part.

How to move the content?

Thanks!

Answer 5

Use a folder query to get the contents and then call StorageFile.MoveAsync to move them to the new folder.

You will need to write some code to do this as there isn't a turnkey folder copy API.

Answer 6

Thanks.

Seems I have to loop through the content.