Available for List and ListView object.
Read/Write at design time
Specifies whether a List or ListView objects allow selecting multiple lines.
For List objects, it can be one of the following values:
0
None Just
one line can be selected (default)
1
Simple Line selection
is toggled each time is clicked or double-clicked
2
Extended Multiple lines can be selected
combining the mouse with <Shift> or <Ctrl> keys
For ListView objects, it can be one of the following values:
FALSE Just one line can be selected
(default).
TRUE Multiple lines can be
selected.