RadJumpList exposes the ItemCount property which returns
the count of data items currently available in the control.
Using the ItemCount property
The ItemCount property returns the count of the data items currently
available in RadJumpList. This count is not always equal to the original count
of items in the data source used to populate RadJumpList. A particular scenario
where this might be the case is when filtering is applied in RadJumpList and a
subset of the items has passed the filter.
The ItemCount property might be used in different scenarios where the
user has to be informed about the amount of items available after a given data
operation. This property can be the source of a Binding object and a
PropertyChanged event is fired each time its value changes. This property cannot be set.