ISETool.exe bug

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Today I found very annoying and strange bug (or, may be, MS call it "feature" ). Seems like directories on isf can hold 1024 files only...
Try code below:

Random rnd = new Random();
using (var isf = IsolatedStorageFile.GetUserStoreForApplication())
{
      byte[] data = new byte[1024];
      isf.CreateDirectory("test");
      for (int i=0; i<1025; i++)
      {
          string fileName = "test\\" + i.ToString("D4") + ".bin";
          using (IsolatedStorageFileStream fs = new IsolatedStorageFileStream(fileName, FileMode.Create, isf))
          {
               rnd.NextBytes(data);
               fs.Write(data, 0, data.Length);
          }
      }
}

After loop completed, resulting directory "test" will be empty! But change i<1024 and you'll get all yours 1024 files...

Tested on emulator and HTC Surround, same results. Can't find any documentation about this limitation... Shame on you, MS!

Update: another strange behavior ('cause of this bug) - if you already have 1024 files and try to add one more, the whole directory content is "magically" disappear But exception isn't thrown...

Interesting, I'll try it as well. This would be lame to have to work around.

Originally Posted by Dbeattie

Interesting, I'll try it as well.

Yes, please, confirm...

I can't test this at the moment but I know I write well over 1000 files to /shared/media so I'm curious to tet this.

Originally Posted by sensboston

Yes, please, confirm...

Hey just tried it out, wrote 2k items to a folder called "Data".

While it didn't show up in the Windows Phone Power tools, the file does exist in the folder itself.

bool success = storage.FileExists(Path.Combine("data", "1999"));

So it's either a problem with the WPConnect api or with the power tools, haven't tried the command line tool.

Yep, fortunately you are right, it's a ISETool.exe (or drivers) bug, not a WP7 ISF.

Originally Posted by sensboston

Yep, fortunately you are right, it's a ISETool.exe (or drivers) bug, not a WP7 ISF.

Could you therefore edit the title of the thread please?

Thanks.