1 public class AZureBlobHelper
 2     {
 3         CloudBlobContainer blobContainer;
 4         string path;
 5 
 6         public AZureBlobHelper(
 7             string _connectionString,
 8             string _containerName,
 9             string _path)
10         {            
11             blobContainer = CloudStorageAccount.Parse(_connectionString)
12                                                 .CreateCloudBlobClient()
13                                                 .GetContainerReference(_containerName);
14 
15             if (_path != string.Empty && _path.EndsWith("/") == false)
16             {
17                 path = _path + "/";
18             }
19             else
20             {
21                 path = _path;
22             }
23         }
24         public bool upload(MemoryStream _stream, string _fileName)
25         {            
26             CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path + _fileName);
27             blockBlob.UploadFromStream(_stream, null, null, null);
28             return true;
29         }
30         
31         public string[] getFileList()
32         {
33             List<string> list = new List<string>();
34             CloudBlobDirectory direcotry =  blobContainer.GetDirectoryReference(path);
35             foreach(var file in direcotry.ListBlobs())
36             {
37                 string fileName = file.Uri.Segments[file.Uri.Segments.Length - 1];
38                 list.Add(fileName);
39             }
40             return list.ToArray();
41         }
42         public MemoryStream download(string _fileName)
43         {
44             MemoryStream ms = new MemoryStream();
45             CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path + _fileName);            
46             blockBlob.DownloadToStream(ms);            
47             return ms;
48         }
49         public void delete(string _fileName)
50         {
51             CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path + _fileName);
52             blockBlob.Delete();
53         }
54     }