| This
property is used to access the Item number that is
currently displayed at the top of the list. It can be
used to determine/control vertical scrolling of the data. If set, it must be set to a value
between 1 and the number of items in the List.
Setting this property to a
row near the bottom of the List contents does not always
guarantee that the row identified will be the first line
within the control. The system will attempt to leave the
bottom few lines visible, however it will assure that the
item indicated is visible.
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