Class RadCalculatorElement

Inheritance
System.Object
DisposableObject
RadObject
RadElement
VisualElement
RadComponentElement
RadItem
UIItemBase
LightVisualElement
RadCalculatorElement
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Telerik.WinControls.UI
Assembly: Telerik.WinControls.UI.dll

Syntax

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

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
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

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

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
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

OnCalculatorKeyDown(KeyEventArgs)

Executed when a key down event is fired.

Declaration
public void OnCalculatorKeyDown(KeyEventArgs e)
Parameters
System.Windows.Forms.KeyEventArgs e

Implements

OnCalculatorKeyPress(KeyPressEventArgs)

Executed when a key press event is fired.

Declaration
public void OnCalculatorKeyPress(KeyPressEventArgs e)
Parameters
System.Windows.Forms.KeyPressEventArgs e

Implements

OnDisplayValueChanged()

Executed when the display value needs to be updated.

Declaration
public void OnDisplayValueChanged()
Implements

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

OnHistoryUpdated(String)

Executed when the history text needs to be updated.

Declaration
public void OnHistoryUpdated(string lastAction)
Parameters
System.String lastAction

Implements

OnMemoryUpdated(Boolean)

Executed when the memory is updated.

Declaration
public void OnMemoryUpdated(bool hasMemory)
Parameters
System.Boolean hasMemory

Implements

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

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

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