TreeProps

allowDrop

allowDrop?: boolean

Allows native drag data to be dropped on this control.

Inherited

Type: boolean

automationName

automationName?: string

Accessible automation name exposed to assistive technology and test drivers.

Inherited

Type: string

canvasLeft

canvasLeft?: number

Canvas left coordinate when parented by Canvas.

Inherited

Type: number

canvasTop

canvasTop?: number

Canvas top coordinate when parented by Canvas.

Inherited

Type: number

capturePointerOnPress

capturePointerOnPress?: boolean

Captures a pressed pointer until release, cancellation, unmount, or disposal.

Inherited

Type: boolean

childrenOf

childrenOf(item: T): readonly T[]

Returns the logical children of an item.

classes

classes?: readonly string[]

Avalonia style classes applied to the native control.

Inherited

Type: readonly string[]

dock

dock?: Dock

Edge used when the control is placed in a DockPanel.

Inherited

Type: Dock

gridColumn

gridColumn?: number

Zero-based column index when the control is placed in a Grid.

Inherited

Type: number

gridColumnSpan

gridColumnSpan?: number

Number of Grid columns occupied by the control.

Inherited

Type: number

gridRow

gridRow?: number

Zero-based row index when the control is placed in a Grid.

Inherited

Type: number

gridRowSpan

gridRowSpan?: number

Number of Grid rows occupied by the control.

Inherited

Type: number

height

height?: number

Preferred control height in device-independent pixels.

Inherited

Type: number

horizontalAlignment

horizontalAlignment?: HorizontalAlignment

Horizontal alignment within the parent layout slot.

Inherited

Type: HorizontalAlignment

isEnabled

isEnabled?: boolean

Whether the control accepts user interaction.

Inherited

Type: boolean

isExpanded

isExpanded?(item: T): boolean

Returns whether an item is expanded.

isVisible

isVisible?: boolean

Whether the control participates in rendering and layout.

Inherited

Type: boolean

itemKey

itemKey(item: T): ItemKey

Returns a stable key for an item.

itemLabel

itemLabel(item: T): string

Returns the label displayed for an item.

items

items: readonly T[]

Root logical tree items.

Type: readonly T[]

key

key?: ItemKey

Optional reconciliation key for the tree control.

Type: ItemKey

margin

margin?: Thickness

Space outside the control.

Inherited

Type: Thickness

maxHeight

maxHeight?: number

Maximum permitted control height.

Inherited

Type: number

maxWidth

maxWidth?: number

Maximum permitted control width.

Inherited

Type: number

minHeight

minHeight?: number

Minimum permitted control height.

Inherited

Type: number

minWidth

minWidth?: number

Minimum permitted control width.

Inherited

Type: number

onDragOver

onDragOver?(event: DropEvent): DropEffect

Chooses the accepted native drag effect.

Inherited

onDrop

onDrop?(event: DropEvent): void | Promise<unknown>

Receives normalized text and local-file drop data.

Inherited

onExpandedChanged

onExpandedChanged?(item: T, expanded: boolean): void

Called after an item's expanded state changes.

onKeyDown

onKeyDown?(event: KeyEvent): boolean

Handles a normalized key-down event.

Inherited

onKeyUp

onKeyUp?(event: KeyEvent): boolean

Handles a normalized key-up event.

Inherited

onPointerCancel

onPointerCancel?(event: PointerEvent): boolean

Handles cancellation or loss of an active pointer capture using its last known local state.

Inherited

onPointerDown

onPointerDown?(event: PointerEvent): boolean

Handles a normalized pointer press.

Inherited

onPointerMove

onPointerMove?(event: PointerEvent): boolean

Handles normalized pointer movement.

Inherited

onPointerUp

onPointerUp?(event: PointerEvent): boolean

Handles a normalized pointer release.

Inherited

opacity

opacity?: number

Opacity from zero (transparent) to one (opaque).

Inherited

Type: number

ref

ref?: ControlRef<unknown>

Receives the retained native control handle.

Inherited

Type: ControlRef<unknown>

toolTip

toolTip?: string

Text shown when the pointer pauses over the control.

Inherited

Type: string

verticalAlignment

verticalAlignment?: VerticalAlignment

Vertical alignment within the parent layout slot.

Inherited

Type: VerticalAlignment

width

width?: number

Preferred control width in device-independent pixels.

Inherited

Type: number