TTMSFNCTreeViewColumn.Expandable Property
True shows an expand/collapse button on the column header so the column can be collapsed. Default: False.
API unit family: TMSFNCTreeViewData
Declaring type: TTMSFNCTreeViewColumn
Type: Boolean
Syntax
property Expandable: Boolean;
__property bool Expandable = {read=FExpandable, write=SetExpandable, default=0};
Default: False