Namespace: Hazelcast.IO.Serialization
Assembly: Hazelcast.Net (in Hazelcast.Net.dll) Version: 3.6.3.0

The IData type exposes the following members.

	Name	Description
	DataSize	Returns size of internal binary data in bytes
	GetHeapCost	Returns approximate heap cost of this Data object in bytes.
	GetPartitionHash	Returns partition hash calculated for serialized object.
	GetTypeId	Returns serialization type of binary form.
	HasPartitionHash	Returns true if Data has partition hash, false otherwise.
	IsPortable	Returns true if this Data is created from a IPortable object, false otherwise.
	ToByteArray	Returns byte array representation of internal binary format.
	TotalSize	Returns the total size of Data in bytes

Top Data is basic unit of serialization. It stores binary form of an object serialized

Reference