Similar to ListView, but can display a hierarchical tree of elements. The base items source for the tree identifies the root items, each of which can have n associated child items. There is no hard limit to the nesting - child items can have children and so on
To make a widget usable as an entry in a TreeView, it must inherit from the IUserObjectListEntry interface.
Editor Properties: (see get_editor_property/set_editor_property)
accessible_behavior(SlateAccessibleBehavior): [Read-Write] Whether or not the widget is accessible, and how to describe it. If set to custom, additional customization options will appear.
accessible_summary_behavior(SlateAccessibleBehavior): [Read-Write] How to describe this widget when it’s being presented through a summary of a parent widget. If set to custom, additional customization options will appear.
accessible_summary_text(Text): [Read-Write] When AccessibleSummaryBehavior is set to Custom, this is the text that will be used to describe the widget.
accessible_text(Text): [Read-Write] When AccessibleBehavior is set to Custom, this is the text that will be used to describe the widget.
bp_on_entry_generated(OnListEntryGeneratedDynamic): [Read-Write] Called when a row widget is generated for a list item
bp_on_entry_initialized(OnListEntryInitializedDynamic): [Read-Write] Called when a row widget is generated for a list item
bp_on_entry_released(OnListEntryReleasedDynamic): [Read-Write] Called when a row widget is released by the list (i.e. when it no longer represents a list item)
bp_on_get_item_children(OnGetItemChildrenDynamic): [Read-Write] Called to get the list of children (if any) that correspond to the given item. Only called if the native C++ version of the event is not bound.
bp_on_item_clicked(SimpleListItemEventDynamic): [Read-Write] BP on Item Clicked
bp_on_item_double_clicked(SimpleListItemEventDynamic): [Read-Write] BP on Item Double Clicked
bp_on_item_expansion_changed(OnItemExpansionChangedDynamic): [Read-Write] BP on Item Expansion Changed
bp_on_item_is_hovered_changed(OnItemIsHoveredChangedDynamic): [Read-Write] BP on Item Is Hovered Changed
bp_on_item_scrolled_into_view(OnListItemScrolledIntoViewDynamic): [Read-Write] BP on Item Scrolled Into View
bp_on_item_selection_changed(OnListItemSelectionChangedDynamic): [Read-Write] BP on Item Selection Changed
can_children_be_accessible(bool): [Read-Write] Whether or not children of this widget can appear as distinct accessible widgets.
clear_selection_on_click(bool): [Read-Write] Clear Selection on Click
clipping(WidgetClipping): [Read-Write] Controls how the clipping behavior of this widget. Normally content that overflows the bounds of the widget continues rendering. Enabling clipping prevents that overflowing content from being seen.
NOTE: Elements in different clipping spaces can not be batched together, and so there is a performance cost to clipping. Do not enable clipping unless a panel actually needs to prevent content from showing up outside its bounds.
consume_mouse_wheel(ConsumeMouseWheel): [Read-Write] Consume Mouse Wheel
cursor(MouseCursor): [Read-Write] The cursor to show when the mouse is over the widget
enable_fixed_line_offset(bool): [Read-Write] Enable Fixed Line Offset
enable_scroll_animation(bool): [Read-Write] True to enable lerped animation when scrolling through the list
entry_spacing(float): [Read-Write] Entry Spacing
entry_widget_class(type(Class)): [Read-Write] The type of widget to create for each entry displayed in the list.
fixed_line_scroll_offset(float): [Read-Write] Optional fixed offset (in lines) to always apply to the top/left (depending on orientation) of the list. If provided, all non-inertial means of scrolling will settle with exactly this offset of the topmost entry. Ex: A value of 0.25 would cause the topmost full entry to be offset down by a quarter length of the preceeding entry.
flow_direction_preference(FlowDirectionPreference): [Read-Write] Allows you to set a new flow direction
is_enabled(bool): [Read-Write] Sets whether this widget can be modified interactively by the user
is_focusable(bool): [Read-Write] Is Focusable
is_volatile(bool): [Read-Write] If true prevents the widget or its child’s geometry or layout information from being cached. If this widget changes every frame, but you want it to still be in an invalidation panel you should make it as volatile instead of invalidating it every frame, which would prevent the invalidation panel from actually ever caching anything.
navigation(WidgetNavigation): [Read-Write] The navigation object for this widget is optionally created if the user has configured custom navigation rules for this widget in the widget designer. Those rules determine how navigation transitions can occur between widgets.
num_designer_preview_entries(int32): [Read-Write] The number of dummy item entry widgets to preview in the widget designer
orientation(Orientation): [Read-Write] The scroll & layout orientation of the list. ListView and TileView only. Vertical will scroll vertically and arrange tiles into rows. Horizontal will scroll horizontally and arrange tiles into columns.
override_accessible_defaults(bool): [Read-Write] Override all of the default accessibility behavior and text for this widget.
override_cursor(bool): [Read-Write] Override Cursor
render_opacity(float): [Read-Write] The opacity of the widget
render_transform(WidgetTransform): [Read-Write] The render transform of the widget allows for arbitrary 2D transforms to be applied to the widget.
render_transform_pivot(Vector2D): [Read-Write] The render transform pivot controls the location about which transforms are applied. This value is a normalized coordinate about which things like rotations will occur.
return_focus_to_selection(bool): [Read-Write] Return Focus to Selection
selection_mode(SelectionMode): [Read-Write] Selection Mode
slot(PanelSlot): [Read-Write] The parent slot of the UWidget. Allows us to easily inline edit the layout controlling this widget.
tool_tip_text(Text): [Read-Write] Tooltip text to show when the user hovers over the widget with the mouse
tool_tip_widget(Widget): [Read-Only] Tooltip widget to show when the user hovers over the widget with the mouse
visibility(SlateVisibility): [Read-Write] The visibility of the widget
wheel_scroll_multiplier(float): [Read-Write] The multiplier to apply when wheel scrolling
[Read-Write] BP on Item Expansion Changed