ListPickerBox

ListPickerBox[list,{val₁lbl₁,val₂lbl₂,…}]

is a low-level box structure that represents a list pane control.

Details and Options

ListPickerBox is used in the low-level representation of ListPicker. Except for low-level notebook expression manipulation, ListPickerBox should not need to be used directly.
list is a list of the values val_i that have been selected in the resulting control, and may be an empty list if no values are selected. list is typically a Dynamic expression.
val_i may be any Wolfram Language expression. lbl_i must be a low-level box representation.
The following options can be given:

Appearance	Automatic	the overall appearance of the pane
AppearanceElements	Automatic	overall control elements to include in the displayed output
Background	Automatic	background color to use
BaselinePosition	Automatic	alignment relative to surrounding text
BaseStyle	{}	base style specifications for the list picker
ContentPadding	True	whether to shrink the margins tightly around the contents
Enabled	Automatic	whether the pane is enabled or grayed out
FieldSize	{{1.,50.},{1.,10.}}	the size of the field for list items
FrameMargins	Automatic	margins to leave inside the menu frame
ImageMargins	Automatic	margins around the displayed menu
ImageSize	Automatic	the overall image size of the displayed list pane
Multiselection	True	whether to allow simultaneous selection of multiple items
Scrollbars	{Automatic,Automatic}	whether to include scrollbars
ScrollPosition	{0,0}	scroll position if scrolling is enabled
Spacings	Automatic	vertical spacings

A ListPickerBox with nothing selected:

A ListPickerBox with two values selected:

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