Dhananjay Kumar

In this post I will show you to download a file from Azure BLOB.

Set the Connection String as below,

Function to download and save file is as below,

public void  DownloadFileFromBlob(string fileName, string containerName,string storageConnectionString)
        {
            account = CloudStorageAccount.Parse(RoleEnvironment.GetConfigurationSettingValue(storageConnectionString));
            blobClient = account.CreateCloudBlobClient();
            container = blobClient.GetContainerReference(containerName);
            blob = container.GetBlobReference(fileName);
            MemoryStream memStream = new MemoryStream();
            blob.DownloadToStream(memStream);
            Response.ContentType = blob.Properties.ContentType;
            Response.AddHeader("Content-Disposition", "Attachment; filename=" + fileName.ToString());
            Response.AddHeader("Content-Length", blob.Properties.Length.ToString());
            Response.BinaryWrite(memStream.ToArray());

        }

you need to pass

1. Connection string to BLOB storage
2. Public Container name
3. BLOB name or file name

Thanks for reading. I hope this post was useful