v3.0

Returns a Boolean value indicating whether or not there is user data on the UserDataItem at the specified index (true=empty/no data; false=not empty). The index must be in the range of 0 to UserDataMap.Count - 1.

A common scenario for using this property is inside a loop which visits each component in the user data map to see if any user data has been set.

UserDataItem Cluster.Elements ClusterProperty