Class NumericUpDown

Represents a control that enables single value selection from a numeric range of values through a Spinner and TextBox.

Inheritance
System.Object
DependencyObject
UIElement
FrameworkElement
Control
UpDownBase
UpDownBase<System.Double>
NumericUpDown
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: System.Windows.Controls
Assembly: OpenSilver.Controls.Input.Toolkit.dll
Syntax
[TemplatePart(Name = "Text", Type = typeof(TextBox))]
[TemplatePart(Name = "Spinner", Type = typeof(Spinner))]
[StyleTypedProperty(Property = "SpinnerStyle", StyleTargetType = typeof(ButtonSpinner))]
public class NumericUpDown : UpDownBase<double>, IControl, IFrameworkElement, IUIElement, IDependencyObject

Constructors

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NumericUpDown()

Initializes a new instance of the NumericUpDown class.

Declaration
public NumericUpDown()

Fields

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DecimalPlacesProperty

Identifies the DecimalPlaces dependency property.

Declaration
public static readonly DependencyProperty DecimalPlacesProperty
Field Value
Type Description
DependencyProperty
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IncrementProperty

Identifies the Increment dependency property.

Declaration
public static readonly DependencyProperty IncrementProperty
Field Value
Type Description
DependencyProperty
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MaximumProperty

Identifies the Maximum dependency property.

Declaration
public static readonly DependencyProperty MaximumProperty
Field Value
Type Description
DependencyProperty
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MinimumProperty

Identifies the Minimum dependency property.

Declaration
public static readonly DependencyProperty MinimumProperty
Field Value
Type Description
DependencyProperty

Properties

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DecimalPlaces

Gets or sets the number of decimal places that are displayed in the NumericUpDown.

Declaration
public int DecimalPlaces { get; set; }
Property Value
Type Description
System.Int32
Remarks

The default value is zero.

DecimalPlaces decides output format of Value property. It is implemented via formatString field and FormatValue override.

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Increment

Gets or sets a value added or subtracted from the value property.

Declaration
public double Increment { get; set; }
Property Value
Type Description
System.Double
Remarks

The default values is one.

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Maximum

Gets or sets the Maximum possible Value.

Declaration
public double Maximum { get; set; }
Property Value
Type Description
System.Double
Remarks

The default values is one.

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Minimum

Gets or sets the Minimum possible Value.

Declaration
public double Minimum { get; set; }
Property Value
Type Description
System.Double
Remarks

The default value is zero.

Methods

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FormatValue()

Provides decimal specific value formatting for the value property.

Declaration
protected override string FormatValue()
Returns
Type Description
System.String

Formatted Value.
Overrides
System.Windows.Controls.UpDownBase<System.Double>.FormatValue()
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OnApplyTemplate()

Builds the visual tree for the NumericUpDown control when a new template is applied.

Declaration
public override void OnApplyTemplate()
Overrides
System.Windows.Controls.UpDownBase<System.Double>.OnApplyTemplate()
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OnCreateAutomationPeer()

Returns a NumericUpDownAutomationPeer for use by the Silverlight automation infrastructure.

Declaration
protected override AutomationPeer OnCreateAutomationPeer()
Returns
Type Description
AutomationPeer

A NumericUpDownAutomationPeer object for the NumericUpDown.
Overrides
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OnDecimalPlacesChanged(Int32, Int32)

Called when the DecimalPlaces property value has changed.

Declaration
protected virtual void OnDecimalPlacesChanged(int oldValue, int newValue)
Parameters
Type Name Description
System.Int32 oldValue

Old value of the DecimalPlaces property.
System.Int32 newValue

New value of the DecimalPlaces property.
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OnDecrement()

Called by OnSpin when the spin direction is SpinDirection.Decrease.

Declaration
protected override void OnDecrement()
Overrides
System.Windows.Controls.UpDownBase<System.Double>.OnDecrement()
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OnIncrement()

Called by OnSpin when the spin direction is SpinDirection.Increase.

Declaration
protected override void OnIncrement()
Overrides
System.Windows.Controls.UpDownBase<System.Double>.OnIncrement()
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OnIncrementChanged(Double, Double)

Called when the Increment property value has changed.

Declaration
protected virtual void OnIncrementChanged(double oldValue, double newValue)
Parameters
Type Name Description
System.Double oldValue

Old value of the Increment property.
System.Double newValue

New value of the Increment property.
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OnMaximumChanged(Double, Double)

Called when the Maximum property value has changed.

Declaration
protected virtual void OnMaximumChanged(double oldValue, double newValue)
Parameters
Type Name Description
System.Double oldValue

Old value of the Maximum property.
System.Double newValue

New value of the Maximum property.
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OnMinimumChanged(Double, Double)

Called when the Minimum property value has changed.

Declaration
protected virtual void OnMinimumChanged(double oldValue, double newValue)
Parameters
Type Name Description
System.Double oldValue

Old value of the Minimum property.
System.Double newValue

New value of the Minimum property.
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OnValueChanged(RoutedPropertyChangedEventArgs<Double>)

Override UpDownBase<T>.OnValueChanged to raise value changed automation event and determine if a maximum or minimum has been reached.

Declaration
protected override void OnValueChanged(RoutedPropertyChangedEventArgs<double> e)
Parameters
Type Name Description
RoutedPropertyChangedEventArgs<System.Double> e

Event args.
Overrides
System.Windows.Controls.UpDownBase<System.Double>.OnValueChanged(System.Windows.RoutedPropertyChangedEventArgs<System.Double>)
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OnValueChanging(RoutedPropertyChangingEventArgs<Double>)

Override UpDownBase<T>.OnValueChanging to do validation and coercion.

Declaration
protected override void OnValueChanging(RoutedPropertyChangingEventArgs<double> e)
Parameters
Type Name Description
RoutedPropertyChangingEventArgs<System.Double> e

Event args.
Overrides
System.Windows.Controls.UpDownBase<System.Double>.OnValueChanging(System.Windows.Controls.RoutedPropertyChangingEventArgs<System.Double>)
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ParseValue(String)

Called by ApplyValue to parse user input as a decimal number.

Declaration
protected override double ParseValue(string text)
Parameters
Type Name Description
System.String text

User input.
Returns
Type Description
System.Double

Value parsed from user input.
Overrides
System.Windows.Controls.UpDownBase<System.Double>.ParseValue(System.String)

Extension Methods