public AzureBlobStorageConnection(AzureBlobStorageProviderFactory factory)
 {
     _factory = (factory ?? StorageProviderFactories.GetFactoryByProviderName("AzureBlob")) as AzureBlobStorageProviderFactory;
 }
 public AzureBlobStorageConnection(string connectionString, AzureBlobStorageProviderFactory factory)
     : this(factory)
 {
     this.ConnectionString = connectionString;
 }