| TransferContext Properties | 
The TransferContext type exposes the following members.
| Name | Description | |
|---|---|---|
| ClientRequestId | 
            Gets or sets the client request id.
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| LastCheckpoint | 
            Gets the last checkpoint of the transfer.
             | |
| LogLevel | 
            Gets or sets the logging level to be used for the related transfer operation.
             | |
| ProgressHandler | 
            Gets or sets the progress update handler.
             | |
| SetAttributesCallbackAsync | 
            Gets or sets the callback invoked to set destination's attributes in memory. 
            The attributes set in this callback will be sent to azure storage service. 
             | |
| ShouldOverwriteCallbackAsync | 
            Gets or sets the callback invoked to tell whether to overwrite an existing destination.
             |