List Files in Azure Blob Storage

Question

I am trying to list all the jpg files in my blob. When I use this code

CloudStorageAccount storageAccount1 = CloudStorageAccount.Parse(CloudConfigurationManager.GetSetting("ConnString"));
CloudBlobContainer container1 = blobClient.GetContainerReference(imageFolder);
var blobs = container1.ListBlobs();

All the files in that particular blob are listed

I have tried to modify the above code but the modified code does not list anything.

CloudStorageAccount storageAccount1 = CloudStorageAccount.Parse(CloudConfigurationManager.GetSetting("ConnString"));
CloudBlobContainer container1 = blobClient.GetContainerReference(imageFolder);
var blobs = container1.ListBlobs().OfType<CloudBlobContainer>().OrderByDescending(b => b.Name).Where(b => b.Name.EndsWith(".jpg"));

.OfType<CloudBlobContainer>() - are you sure you have the right type? — David Makogon
Yes you are correct. I changed OfType<CloudBlobContainer>() to OfType<CloudBlockBlob>() and it worked. Thank you for your assistance. — Dan Nick

David Makogon David Makogon · Accepted Answer · 2015-02-16T23:06:32

Just to close out this question properly: The issue is that the query code is inadvertently checking for containers within the container, not blobs within the container:

CloudStorageAccount storageAccount1 = CloudStorageAccount.Parse(CloudConfigurationManager.GetSetting("ConnString"));
CloudBlobContainer container1 = blobClient.GetContainerReference(imageFolder);
var blobs = container1.ListBlobs().OfType<CloudBlobContainer>().OrderByDescending(b => b.Name).Where(b => b.Name.EndsWith(".jpg"));

The last line should be changed to:

var blobs = container1.ListBlobs().OfType<CloudBlockBlob>()...

List Files in Azure Blob Storage

1 Answers