GcDropDownCalculator Class

Represents a GcDropDownCalculator control which could perform calculation operations like addition, subtraction, multiplication, and division.

Inheritance

object

Visual

GcDropDownCalculator

Implements

IAnimatable

IFrameworkInputElement

IInputElement

IQueryAmbient

ISupportInitialize

Namespace: GrapeCity.Wpf.SpreadSheet.CellType.Editors

Assembly: GrapeCity.Wpf.SpreadSheet.CellType.dll

Syntax

[StyleTypedProperty(Property = "EditButtonStyle", StyleTargetType = typeof(CalculatorButton))]
[StyleTypedProperty(Property = "ErrorMessageStyle", StyleTargetType = typeof(TextBlock))]
[StyleTypedProperty(Property = "HistoryStyle", StyleTargetType = typeof(TextBlock))]
[StyleTypedProperty(Property = "MathButtonStyle", StyleTargetType = typeof(CalculatorButton))]
[StyleTypedProperty(Property = "MemoryButtonStyle", StyleTargetType = typeof(CalculatorButton))]
[StyleTypedProperty(Property = "MemoryStatusStyle", StyleTargetType = typeof(TextBlock))]
[StyleTypedProperty(Property = "NumericButtonStyle", StyleTargetType = typeof(CalculatorButton))]
[StyleTypedProperty(Property = "OutputStyle", StyleTargetType = typeof(TextBlock))]
[StyleTypedProperty(Property = "ResetButtonStyle", StyleTargetType = typeof(CalculatorButton))]
[TemplateVisualState(Name = "Disabled", GroupName = "CommonStates")]
[TemplateVisualState(Name = "Normal", GroupName = "CommonStates")]
[TemplateVisualState(Name = "HasErrors", GroupName = "CalculationStates")]
[TemplateVisualState(Name = "Empty", GroupName = "CalculationStates")]
public class GcDropDownCalculator : ControlBase, IAnimatable, IFrameworkInputElement, IInputElement, IQueryAmbient, ISupportInitialize

<StyleTypedProperty(Property:="EditButtonStyle", StyleTargetType:=GetType(CalculatorButton))>
<StyleTypedProperty(Property:="ErrorMessageStyle", StyleTargetType:=GetType(TextBlock))>
<StyleTypedProperty(Property:="HistoryStyle", StyleTargetType:=GetType(TextBlock))>
<StyleTypedProperty(Property:="MathButtonStyle", StyleTargetType:=GetType(CalculatorButton))>
<StyleTypedProperty(Property:="MemoryButtonStyle", StyleTargetType:=GetType(CalculatorButton))>
<StyleTypedProperty(Property:="MemoryStatusStyle", StyleTargetType:=GetType(TextBlock))>
<StyleTypedProperty(Property:="NumericButtonStyle", StyleTargetType:=GetType(CalculatorButton))>
<StyleTypedProperty(Property:="OutputStyle", StyleTargetType:=GetType(TextBlock))>
<StyleTypedProperty(Property:="ResetButtonStyle", StyleTargetType:=GetType(CalculatorButton))>
<TemplateVisualState(Name:="Disabled", GroupName:="CommonStates")>
<TemplateVisualState(Name:="Normal", GroupName:="CommonStates")>
<TemplateVisualState(Name:="HasErrors", GroupName:="CalculationStates")>
<TemplateVisualState(Name:="Empty", GroupName:="CalculationStates")>
Public Class GcDropDownCalculator
    Inherits ControlBase
    Implements IAnimatable, IFrameworkInputElement, IInputElement, IQueryAmbient, ISupportInitialize

Remarks

A GcDropDownCalculator control can be used on its own, or as a drop-down part of a GrapeCity.Windows.InputMan.GcNumber control. For more information, see GrapeCity.Windows.InputMan.GcNumber.

The GcDropDownCalculator control provides calculation using either the mouse or keyboard. You could click the button in the control or press keys to perform calculation. The following table summarizes keyboard operations.

Key Combination	Calculator Operation
Esc, Ctrl+Delete	GrapeCity.Windows.InputMan.CalculatorOperation.C. Clears the current calculation.
Delete	GrapeCity.Windows.InputMan.CalculatorOperation.CE. Clears the displayed number.
Back	GrapeCity.Windows.InputMan.CalculatorOperation.Backspace. Deletes the last digit of the displayed number.
D0, NumPad0	GrapeCity.Windows.InputMan.CalculatorOperation.Digit0. Puts this number in the calculator display.
D1, NumPad1	GrapeCity.Windows.InputMan.CalculatorOperation.Digit1. Puts this number in the calculator display.
D2, NumPad2	GrapeCity.Windows.InputMan.CalculatorOperation.Digit2. Puts this number in the calculator display.
D3, NumPad3	GrapeCity.Windows.InputMan.CalculatorOperation.Digit3. Puts this number in the calculator display.
D4, NumPad4	GrapeCity.Windows.InputMan.CalculatorOperation.Digit4. Puts this number in the calculator display.
D5, NumPad5	GrapeCity.Windows.InputMan.CalculatorOperation.Digit5. Puts this number in the calculator display.
D6, NumPad6	GrapeCity.Windows.InputMan.CalculatorOperation.Digit6. Puts this number in the calculator display.
D7, NumPad7	GrapeCity.Windows.InputMan.CalculatorOperation.Digit7. Puts this number in the calculator display.
D8, NumPad8	GrapeCity.Windows.InputMan.CalculatorOperation.Digit8. Puts this number in the calculator display.
D9, NumPad9	GrapeCity.Windows.InputMan.CalculatorOperation.Digit9. Puts this number in the calculator display.
Decimal, OemComma, OemPeriod	GrapeCity.Windows.InputMan.CalculatorOperation.DecimalPoint. Inserts a decimal point.
F9	GrapeCity.Windows.InputMan.CalculatorOperation.Sign. Changes the sign of the displayed number.
Add, Shift+OemPlus	GrapeCity.Windows.InputMan.CalculatorOperation.Add. Adds.
Subtract, Shift+OemMinus	GrapeCity.Windows.InputMan.CalculatorOperation.Subtract. Subtracts.
Multiply, Shift+Oem1	GrapeCity.Windows.InputMan.CalculatorOperation.Multiply. Multiplies.
Divide, OemQuestion	GrapeCity.Windows.InputMan.CalculatorOperation.Divide. Divides.
Shift+D5	GrapeCity.Windows.InputMan.CalculatorOperation.Percentage. Displays the result of multiplication as a percentage. Enter one number, click , enter the second number, and then click %. For example, 50 25% will display 12.5. You can also perform operations with percentages. Enter one number, click the operator (+, -, *, or /), enter the second number, click %, and then click =..
OemTilde	GrapeCity.Windows.InputMan.CalculatorOperation.SquareRoot. Calculates the square root of the displayed number.
R	GrapeCity.Windows.InputMan.CalculatorOperation.Reciprocal. Calculates the reciprocal of the displayed number.
Return, Shift+OemMinus	GrapeCity.Windows.InputMan.CalculatorOperation.Equal. Performs any operation on the previous two numbers. To repeat the last operation, click = again.
Ctrl+L	GrapeCity.Windows.InputMan.CalculatorOperation.MemoryClear. Clears any number stored in memory.
Ctrl+R	GrapeCity.Windows.InputMan.CalculatorOperation.MemoryRecall. Recalls the number stored in memory. The number remains in memory.
Ctrl+M	GrapeCity.Windows.InputMan.CalculatorOperation.MemorySave. Stores the displayed number in memory.
Ctrl+P	GrapeCity.Windows.InputMan.CalculatorOperation.MemoryPlus. Adds the displayed number to any number already in memory but does not display the sum of these numbers.
Ctrl+Q	GrapeCity.Windows.InputMan.CalculatorOperation.MemoryMinus. Subtracts the displayed number from any number already in memory but does not display the result of the subtraction.

Supported VisualState list:

VisualStateGroup Name

VisualState Name

Description

CommonStates

Normal

Represents the visual appearance when control is in normal state.

CommonStates

Disabled

Represents the visual appearance when IsEnabled is false.

CalculationStates

HasErrors

Represents the visual appearance when HasError is true.

CalculationStates

Empty

Represents the visual appearance when HasError is false.

ValidationStates

Valid

Represents the visual appearance when System.Windows.Controls.Validation.GetHasError(System.Windows.DependencyObject) returns false.

ValidationStates

InvalidFocused

Represents the visual appearance when System.Windows.Controls.Validation.GetHasError(System.Windows.DependencyObject) returns true and IsKeyboardFocused is true.

ValidationStates

InvalidUnfocused

Represents the visual appearance when System.Windows.Controls.Validation.GetHasError(System.Windows.DependencyObject) returns true and IsKeyboardFocused is false.

VisualStateGroup Name	VisualState Name	Description
CommonStates	Normal	Represents the visual appearance when control is in normal state.
CommonStates	Disabled	Represents the visual appearance when IsEnabled is false.
CalculationStates	HasErrors	Represents the visual appearance when HasError is true.
CalculationStates	Empty	Represents the visual appearance when HasError is false.
ValidationStates	Valid	Represents the visual appearance when System.Windows.Controls.Validation.GetHasError(System.Windows.DependencyObject) returns false.
ValidationStates	InvalidFocused	Represents the visual appearance when System.Windows.Controls.Validation.GetHasError(System.Windows.DependencyObject) returns true and IsKeyboardFocused is true.
ValidationStates	InvalidUnfocused	Represents the visual appearance when System.Windows.Controls.Validation.GetHasError(System.Windows.DependencyObject) returns true and IsKeyboardFocused is false.

Constructors

Name	Description
GcDropDownCalculator()	Initializes a new instance of the GcDropDownCalculator class.

Fields

Name	Description
DisplayTextProperty	Identifies the DisplayText dependency property.
EditButtonStyleProperty	Identifies the EditButtonStyle dependency property.
ErrorMessageStyleProperty	Identifies the ErrorMessageStyle dependency property.
HasErrorProperty	Identifies the HasError dependency property.
HasMemoryProperty	Identifies the HasMemory dependency property.
HistoryProperty	Identifies the History dependency property.
HistoryStyleProperty	Identifies the HistoryStyle dependency property.
IsShowHistoryProperty	Identifies the IsShowHistory dependency property.
MathButtonStyleProperty	Identifies the MathButtonStyle dependency property.
MemoryButtonStyleProperty	Identifies the MemoryButtonStyle dependency property.
MemoryStatusStyleProperty	Identifies the MemoryStatusStyle dependency property.
NumericButtonStyleProperty	Identifies the NumericButtonStyle dependency property.
OutputStyleProperty	Identifies the OutputStyle dependency property.
ResetButtonStyleProperty	Identifies the ResetButtonStyle dependency property.
ValueChangedEvent	Identifies the ValueChanged routed event.
ValueProperty	Identifies the Value dependency property.

Properties

Name	Description
DisplayText	Gets the display text of a GcDropDownCalculator. This is a dependency property.
EditButtonStyle	Gets or sets a Style which is used to render the Edit buttons. This is a dependency property.
ErrorMessageStyle	Gets or sets a Style which is used to render the error message part. This is a dependency property.
HasError	Gets a value indicating whether this instance of GcDropDownCalculator has an error. This is a dependency property.
HasMemory	Gets a value indicating whether this instance of GcDropDownCalculator has memorized value. This is a dependency property.
History	Gets the history text string for current calculation. This is a dependency property.
HistoryStyle	Gets or sets a Style which is used to render the history part. This is a dependency property.
IsShowHistory	Gets or sets whether to show the history of calculation or not. This is a dependency property.
MathButtonStyle	Gets or sets a Style which is used to render the Math buttons. This is a dependency property.
MemoryButtonStyle	Gets or sets a Style which is used to render the Memory buttons. This is a dependency property.
MemoryStatusStyle	Gets or sets a Style which is used to render the memory status part. This is a dependency property.
NumericButtonStyle	Gets or sets a Style which is used to render the Numeric buttons. This is a dependency property.
OutputStyle	Gets or sets a Style which is used to render the output part. This is a dependency property.
ProcessCommand	Represents the ProcessCommand command, which requests that calculator to process the operation the command parameter describes.
ResetButtonStyle	Gets or sets a Style which is used to render the Reset buttons. This is a dependency property.
Value	Gets or sets the value of a GcDropDownCalculator. This is a dependency property.

Methods

Name	Description
OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs)	Invoked just before the IsKeyboardFocusWithinChanged event is raised by this element. Implement this method to add class handling for this event.
OnValueChanged(RoutedEventArgs)	Called when value of this calculator changed, to raise the ValueChanged event.

Events

Name	Description
ValueChanged	Occurs when the value of the calculator changed.