Class Dropdown<TItemType, TView>

Inheritance
object
Widget
Dropdown<TItemType, TView>
StringDropdown
Implements
Inherited Members
Namespace: Ritchie.Toolbox.Widgets
Assembly: Ritchie.Toolbox.dll
Syntax
public abstract class Dropdown<TItemType, TView> : Widget, IFontFamilyProvider, IInspectable, IMouseClickHandler, IGainFocusHandler, ILoseFocusHandler, IDropdownButtonVisual, IVisual<DropdownButtonVisualState>, IMouseEnterHandler, IMouseLeaveHandler, IMouseDownHandler, IMouseUpHandler, IMouseHandler, IUpdateThemeProperties where TView : DropdownItemView<TItemType>, new()
Type Parameters
Name Description
TItemType
TView

Constructors

Dropdown()

Declaration
public Dropdown()

Properties

Items

Declaration
public ICollection<TItemType> Items { get; }
Property Value
Type Description
ICollection<TItemType>

PlaceholderTExt

Declaration
public string PlaceholderTExt { get; set; }
Property Value
Type Description
string

SelectedIndex

Declaration
public int SelectedIndex { get; set; }
Property Value
Type Description
int

VisualProperties

Gets a read-only reference to the visual properties associated with the widget.

Declaration
public ref readonly DropdownButtonVisualState VisualProperties { get; }
Property Value
Type Description
DropdownButtonVisualState

Methods

ArrangeChildren(IGuiContext, LayoutRect)

Declaration
protected override void ArrangeChildren(IGuiContext context, LayoutRect availableSpace)
Parameters
Type Name Description
IGuiContext context
LayoutRect availableSpace
Overrides

BeforeRender()

Declaration
protected override void BeforeRender()
Overrides

GetContentSize(Point)

Declaration
protected override Point GetContentSize(Point availableSize)
Parameters
Type Name Description
Point availableSize
Returns
Type Description
Point
Overrides

OnFocusGained(FocusEvent)

Declaration
public void OnFocusGained(FocusEvent e)
Parameters
Type Name Description
FocusEvent e

OnFocusLost(FocusEvent)

Declaration
public void OnFocusLost(FocusEvent e)
Parameters
Type Name Description
FocusEvent e

OnMouseClick(MouseButtonEvent)

Declaration
public void OnMouseClick(MouseButtonEvent e)
Parameters
Type Name Description
MouseButtonEvent e

OnMouseDown(MouseButtonEvent)

Declaration
public void OnMouseDown(MouseButtonEvent e)
Parameters
Type Name Description
MouseButtonEvent e

OnMouseEnter(MouseMoveEvent)

Declaration
public void OnMouseEnter(MouseMoveEvent e)
Parameters
Type Name Description
MouseMoveEvent e

OnMouseLeave(MouseMoveEvent)

Declaration
public void OnMouseLeave(MouseMoveEvent e)
Parameters
Type Name Description
MouseMoveEvent e

OnMouseUp(MouseButtonEvent)

Declaration
public void OnMouseUp(MouseButtonEvent e)
Parameters
Type Name Description
MouseButtonEvent e

RebuildClippingZone(GeometryHelper)

Declaration
protected override void RebuildClippingZone(GeometryHelper geometry)
Parameters
Type Name Description
GeometryHelper geometry
Overrides

RebuildGeometry(GeometryHelper)

Declaration
protected override void RebuildGeometry(GeometryHelper geometry)
Parameters
Type Name Description
GeometryHelper geometry
Overrides

SetItems(IEnumerable<TItemType>)

Declaration
public void SetItems(IEnumerable<TItemType> itemSource)
Parameters
Type Name Description
IEnumerable<TItemType> itemSource

UpdateThemeProperties()

Retrieves layout properties from the visual style. Called by the UI system on every frame before layout updates occur. If layout properties change during this method call, the widget will automatically invalidate its own layout.

Declaration
public void UpdateThemeProperties()

Events

SelectedIndexChanged

Declaration
public event Action<int>? SelectedIndexChanged
Event Type
Type Description
Action<int>

Implements

Extension Methods