public class RadCalculatorElement : LightVisualElement, INotifyPropertyChanged, ICustomTypeDescriptor, ISupportSystemSkin, IComponent, IDisposable, IBindableComponent, ISupportDrag, ISupportDrop, IShortcutProvider, IStylableElement, IStylableNode, IPrimitiveElement, IShapedElement, IFillElement, IBorderElement, IBoxStyle, IBoxElement, IImageElement, ITextPrimitive, ITextProvider, ICalculatorElement, ICalculatorButtonElementContainer

Constructors

RadCalculatorElement()

Initializes a new instance of the RadCalculatorElement class.

Declaration

public RadCalculatorElement()

Properties

CalculationBehavior

Gets or sets the calculation behavior.

Declaration

public StandardCalculatorCalculationBehavior CalculationBehavior { get; set; }

Property Value

StandardCalculatorCalculationBehavior

ContentElement

Gets the RadCalculatorContentElement, which is responsible for calculator buttons and their layout.

Declaration

public RadCalculatorContentElement ContentElement { get; }

Property Value

RadCalculatorContentElement

Culture

Gets or sets current culture for the RadCalculatorElement.

Declaration

public CultureInfo Culture { get; set; }

Property Value

System.Globalization.CultureInfo

Implements

ICalculatorElement.Culture

TextAreaElement

Gets the RadCalculatorTextAreaElement, which is responsible for the displayed value, memory and history.

Declaration

public RadCalculatorTextAreaElement TextAreaElement { get; }

Property Value

RadCalculatorTextAreaElement

Methods

ArrangeOverride(SizeF)

Arranges the RadElement to its final location. The element must call the Arrange method of each of its children.

Declaration

protected override SizeF ArrangeOverride(SizeF finalSize)

Parameters

System.Drawing.SizeF finalSize The size that is available for element.

Returns

System.Drawing.SizeF The rectangle occupied by the element. Usually `finalSize`. Should you return different size, the Layout system will restart measuring and rearranging the items. That could lead to infinite recursion.

Overrides

LightVisualElement.ArrangeOverride(SizeF)

Remarks

In this method call to the Arrange method of each child must be made.

CreateCalculationBehavior()

Creates the calculation behavior. responsible for the mathematic operations and history.

Declaration

protected virtual StandardCalculatorCalculationBehavior CreateCalculationBehavior()

Returns

StandardCalculatorCalculationBehavior

CreateChildElements()

Called by the element when constructed. Allows inheritors to build the element tree.

Declaration

protected override void CreateChildElements()

Overrides

RadElement.CreateChildElements()

CreateContentElement()

Creates the RadCalculatorContentElement, which is responsible for calculator buttons and their layout.

Declaration

protected virtual RadCalculatorContentElement CreateContentElement()

Returns

RadCalculatorContentElement

CreateTextPartElement()

Creates the RadCalculatorTextAreaElement, which is responsible for the displayed value, memory and history.

Declaration

protected virtual RadCalculatorTextAreaElement CreateTextPartElement()

Returns

RadCalculatorTextAreaElement

GetFormattedValue()

Gets the formatted value.

Declaration

protected virtual string GetFormattedValue()

Returns

System.String

InitializeFields()

Initializes member fields to their default values. This method is called prior the CreateChildItems one and allows for initialization of members on which child elements depend.

Declaration

protected override void InitializeFields()

Overrides

LightVisualElement.InitializeFields()

MeasureOverride(SizeF)

Measures the space required by the RadElement

Used by the layout system.

Declaration

protected override SizeF MeasureOverride(SizeF availableSize)

Parameters

System.Drawing.SizeF availableSize The size that is available to the RadElement. The available size can be infinity (to take the full size of the element)

Returns

System.Drawing.SizeF The minimum size required by the element to be completely visible. Cannot be infinity.

Overrides

LightVisualElement.MeasureOverride(SizeF)

Remarks

In this method call to the Measure method of each child must be made.

OnButtonMouseUp(RadCalculatorButton, MouseEventArgs)

Executed when a button is mouse up event is fired.

Declaration

public void OnButtonMouseUp(RadCalculatorButton button, MouseEventArgs e)

Parameters

RadCalculatorButton button
System.Windows.Forms.MouseEventArgs e

Implements

ICalculatorButtonElementContainer.OnButtonMouseUp(RadCalculatorButton, MouseEventArgs)

OnCalculatorKeyDown(KeyEventArgs)

Executed when a key down event is fired.

Declaration

public void OnCalculatorKeyDown(KeyEventArgs e)

Parameters

System.Windows.Forms.KeyEventArgs e

Implements

ICalculatorButtonElementContainer.OnCalculatorKeyDown(KeyEventArgs)

OnCalculatorKeyPress(KeyPressEventArgs)

Executed when a key press event is fired.

Declaration

public void OnCalculatorKeyPress(KeyPressEventArgs e)

Parameters

System.Windows.Forms.KeyPressEventArgs e

Implements

ICalculatorButtonElementContainer.OnCalculatorKeyPress(KeyPressEventArgs)

OnDisplayValueChanged()

Executed when the display value needs to be updated.

Declaration

public void OnDisplayValueChanged()

Implements

ICalculatorElement.OnDisplayValueChanged()

OnDisplayValueChanging(String, String)

Executed when the displayed value is about to be updated. Cancellable.

Declaration

public bool OnDisplayValueChanging(string oldValue, string newValue)

Parameters

System.String oldValue The old value.
System.String newValue The new value.

Returns

System.Boolean A value indicating whether to cancel the operation.

Implements

ICalculatorElement.OnDisplayValueChanging(String, String)

OnHistoryUpdated(String)

Executed when the history text needs to be updated.

Declaration

public void OnHistoryUpdated(string lastAction)

Parameters

System.String lastAction

Implements

ICalculatorElement.OnHistoryUpdated(String)

OnMemoryUpdated(Boolean)

Executed when the memory is updated.

Declaration

public void OnMemoryUpdated(bool hasMemory)

Parameters

System.Boolean hasMemory

Implements

ICalculatorElement.OnMemoryUpdated(Boolean)

OnValueChanged()

Fires the ValueChanged event.

Declaration

protected virtual void OnValueChanged()

OnValueChanging(ValueChangingEventArgs)

Fires the ValueChanging event.

Declaration

protected virtual void OnValueChanging(ValueChangingEventArgs args)

Parameters

ValueChangingEventArgs args

ShouldArrangeChild(RadElement)

Gets a value indicating, whether a child will be arranged during the ArrangeOverride.

Declaration

protected override bool ShouldArrangeChild(RadElement child)

Parameters

RadElement child The child.

Returns

System.Boolean Whether the child will be arranged in ArrangeOverride.

Overrides

RadElement.ShouldArrangeChild(RadElement)

ShouldMeasureChild(RadElement)

Gets a value indicating, whether a child will be measured during the MeasureOverride.

Declaration

protected override bool ShouldMeasureChild(RadElement child)

Parameters

RadElement child The child.

Returns

System.Boolean Whether the child will be measured in MeasureOverride.

Overrides

RadElement.ShouldMeasureChild(RadElement)

UpdateText()

Updates the displayed text/value.

Declaration

protected virtual void UpdateText()

Events

ValueChanged

Fired when the displayed value has changed.

Declaration

public event EventHandler ValueChanged

Event Type

System.EventHandler

ValueChanging

Fired when the display value is about to be changed.

Declaration

public event ValueChangingEventHandler ValueChanging

Event Type

ValueChangingEventHandler

Extension Methods

CommonExtensions.ClearIfNoBindingAndSet(RadObject, RadProperty)

DispatcherExtensions.CheckAccess(RadObject)

SerializationExtensions.DeserializePrimitives(RadItem, SerializationInfo)

CommonExtensions.SetIfDifferent(RadObject, RadProperty, Object)

CommonExtensions.ClearIfSet(RadObject, RadProperty)

CommonExtensions.IsLocalValueSet(RadObject, RadProperty)

DispatcherExtensions.CheckAccess(RadObject)

SvgExtentions.Traverse<T>(T, Func<T, IEnumerable<T>>)

SvgExtentions.TraverseDepthFirst<T>(T, Func<T, IEnumerable<T>>)