After formatting , DirectoryInfo.GetFileSystemInfos throw DirectoryNotFoundException

[alphaleonis]

Issue by hnorihiro from Friday Jan 09, 2015 at 11:16 GMT
Originally opened as #41

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1.I format the G drive

AlphaFS(2015/1/8)

DirectoryInfo info = new DirectoryInfo(@"G:\");
info.GetFileSystemInfos();//Directory not found Exception

.NET

System.IO.DirectoryInfo info = new System.IO.DirectoryInfo(@"G:\");
info.GetFileSystemInfos();//Success!!

Can you help me?

[alphaleonis]

Comment by Yomodo from Friday Jan 09, 2015 at 11:35 GMT

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What type of device is G: (external drive, USB stick, ...)
NTFS formatting?

[alphaleonis]

Comment by hnorihiro from Wednesday Jan 14, 2015 at 01:03 GMT

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Yes, it is NTFS(USB Drive).
Drive When it is empty after formatting, occurs error.
Drive When $RECYCLE.BIN exist,does not occurs.

[alphaleonis]

Comment by Yomodo from Wednesday Jan 14, 2015 at 23:24 GMT

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Does it still throw the exception if you execute: info.Refresh(); first?

[alphaleonis]

Comment by hnorihiro from Thursday Jan 15, 2015 at 01:49 GMT

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OS Windows7
.NET 3.5

DirectoryInfo info = new DirectoryInfo(@"G:\");
info.Refresh();
info.GetFileSystemInfos();//Directory not found Exception

it still throw the exception .

[alphaleonis]

Comment by Yomodo from Thursday Jan 15, 2015 at 10:14 GMT

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Confirmed on Windows 8.1 X64

It seems related to the volume label.
The exception can be avoided with: /v:myLabel
But even then I still see the Exception thrown, sometimes.

var drive = @"D:";
var format_cmd = "/C format.com " + drive + " /fs:NTFS /v:myLabel /q";

using (var process = Process.Start("CMD.exe", format_cmd))
    process.WaitForExit();

DirectoryInfo info = new DirectoryInfo(drive + @"\");
info.GetFileSystemInfos();

However, System.IO indeed does not throw an Exception.

[Yomodo]

Unfortunately, I could not find anything to fix within AlphaFS.

The only possbile fix for this issue,
is to add a: Thread.Sleep(1000); before calling DirectoryInfo().