Question

I have a question about my project… I need to know how to list all folders (in a string list or something) from a Windows Azure blob storage… I allready have my BlobClient and the connection to my Azure storage.

Who can help me with this “problem”?

Answer 1

Try this code. It makes use of Storage Client library 2.0.3:

        CloudStorageAccount storageAccount = CloudStorageAccount.DevelopmentStorageAccount;
        CloudBlobContainer blobContainer = storageAccount.CreateCloudBlobClient().GetContainerReference("wad-control-container");
        string blobPrefix = null;
        bool useFlatBlobListing = false;
        var blobs = blobContainer.ListBlobs(blobPrefix, useFlatBlobListing, BlobListingDetails.None);
        var folders = blobs.Where(b => b as CloudBlobDirectory != null).ToList();
        foreach (var folder in folders)
        {
            Console.WriteLine(folder.Uri);
        }

If you’re using Storage Client Library 1.8 (i.e. previous to version 2.0), try this code:

        var storageAccount = CloudStorageAccount.DevelopmentStorageAccount;
        cloudBlobClient = storageAccount.CreateCloudBlobClient();
        CloudBlobContainer container = cloudBlobClient.GetContainerReference("wad-control-container");
        IEnumerable<IListBlobItem> blobs = container.ListBlobs(new BlobRequestOptions()
        {
            UseFlatBlobListing = false,
        });
        var folders = blobs.Where(b => b as CloudBlobDirectory != null);

        foreach (var folder in folders)
        {
            Console.WriteLine(folder.Uri);
        }