CODEWITHSUNDEEP
c#directorydirectoryinfo
EC84B4
EC84B4

Reputation: 7696

Error on getting DirectoryInfo with GetFileSystemInfos()

I get an error when I'm trying to get a DirectoryInfo because there is some read only file and folder.

How can I skip them?

var dirinfo = new DirectoryInfo(Path_Tb_Path.Text);
var entries = dirinfo.GetFileSystemInfos("**", SearchOption.AllDirectories);

Upvotes: 0

Views: 576

Answers (1)

Darin Dimitrov
Darin Dimitrov

Reputation: 1038770

In .NET 4.0 you could use the EnumerateFileSystemInfos method. For example you could write the following recursive method which will swallow the UnauthorizedAccessException for some files and only include those files in the result for which you have permission to access:

public static IEnumerable<FileSystemInfo> SafeGetFileSystemInfosRecursive(DirectoryInfo directory, string searchPattern)
{
    try
    {
        return directory
            .EnumerateFileSystemInfos(searchPattern)
            .Concat(
                directory
                    .EnumerateDirectories()
                    .SelectMany(x => SafeGetFileSystemInfosRecursive(x, searchPattern))
            );
    }
    catch (UnauthorizedAccessException)
    {
        return Enumerable.Empty<FileSystemInfo>();
    }
}

and then call the method like that:

var dirInfo = new DirectoryInfo(Path_Tb_Path.Text);
FileSystemInfo[] entries = SafeGetFileSystemInfosRecursive(dirInfo, "**").ToArray();

Upvotes: 1

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