RadCloudUpload for WPF is not quite different then the RadUpload for Silverlight control. This is why there is no straight forward approach for migrating between the controls. Also, there is no an example as the one you are asking for.
RadCloudUpload works with storage providers. In order to work with the control and your custom storage service you will need to implement a custom provider
that posts and gets request to the service. In order to get started with the cloud upload control I suggest you to read its documentation
and see its First Look demo
which demonstrates how to create a custom provider.
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