Azure blob storage data lake service client how to get folders and files in sorted format based on type in paginated response

Question

Here is my code I'm using initialized data service client to get the storage blob containers folders and files.

However, while iterating through paginated responses I'm not getting data in a sorted format. I want all the folders/directories to appear on the first pages and then files at the end.

It would be helpful if someone has an idea of how this can be done.

Thanks in advance.

Answer 1

Fetching Files and folders from Blob Storage in Pagination

1. Create a storage account

2. Create a file share account

3. Create a directory / folder in fileshare

4. Use the Connection string of the storage account, fileshare name and folder name in the below code

        string connectionString = "Connection-String";
        CloudStorageAccount cloud_StorageAccount = CloudStorageAccount.Parse(connectionString);
        CloudFileClient cloud_FileClient = cloud_StorageAccount.CreateCloudFileClient();
        CloudFileShare cloud_FileShare = cloud_FileClient.GetShareReference("FileShare");
        CloudFileDirectory root_Directory = cloud_FileShare.GetRootDirectoryReference();
        CloudFileDirectory file_Directory = root_Directory.GetDirectoryReference("Directory_Name");
        List<IListFileItem> files = Get_Files_Directory(file_Directory);
        int i = 0;
        foreach (var item in files)
        {
   
            SampleData s = new SampleData();
            s.ID = i+1;
            s.FileName = ((Microsoft.Azure.Storage.File.CloudFile)item).Name;
            s.FolderName = ((Microsoft.Azure.Storage.File.CloudFile)item).SnapshotQualifiedUri.LocalPath;
   
            _sampleDataList.Add(s);
   
        }``
   

Code Execution

The below is the list of sorted files in the pagination Page1

Page2