TTreeViewOptions

type TTreeViewOptions = set of (

  tvoAllowMultiselect,

Allows selection of several tree-items, e.g. using Ctrl+click and Shift+click. Has the same affect as setting the MultiSelect property to True.

  tvoAutoExpand,

Automatically expands child nodes for a tree-item when user clicks it, or the item is activated by code. Has the same affect as setting the AutoExpand property to True.

  tvoAutoInsertMark,

Allows painting a horizontal line below a tree-item under cursor when mouse moves. Good for drag-drop.

  tvoAutoItemHeight,

Detect height of a tree-item based on current font and icons.

  tvoHideSelection,

If a control looses focus, then don't paint selection for selected tree-item. Same as HideSelection property.

  tvoHotTrack,

Additionally highlight/underline a tree-item when mouse is over it. Same as HotTrack property.

  tvoKeepCollapsedNodes,

When some items change, keep previously folded tree-items in folded state.

  tvoReadOnly,

Don't allow to change item captions by clicking on items with a delay. Same as ReadOnly property.

  tvoRightClickSelect,

Right-click also selects a tree-item. Otherwise it only calls PopupMenu. Same as RightClickSelect property.

  tvoRowSelect,

When a tree-item is selected, paint selection background with full width. Same as RowSelect property.

  tvoShowButtons,

Show expand/collapse (fold/unfold) icons at left side for nodes with sub-nodes. Same as ShowButtons property.

  tvoShowLines,

Show vertical lines at left side which paint tree structure for nested nodes. Same as ShowLines property.

  tvoShowRoot,

Show the root tree-item which is always present in code but may be hidden for user. Same as ShowRoot property.

  tvoShowSeparators,

Show horizontal lines below all tree-items.

  tvoToolTips,

Show tooltip (hint) for a tree-item when the item is too long to fit by width and mouse is over it. Same as ToolTips property.

  tvoNoDoubleClickExpand,

Prevents toggling the expanded state for the tree view item when it is double clicked.

  tvoThemedDraw,

Tree view item is drawn using settings from theme services.

  tvoEmptySpaceUnselect

Indicates if empty space can be be drawn below unselected items in the tree view.

);

TCustomTreeView.Options

The set of options enabled in the tree view control.