RangeBase Class
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Represents an element that has a value within a specific range, such as the ProgressBar, ScrollBar, and Slider controls.
Inheritance Hierarchy
System.Object
System.Windows.DependencyObject
System.Windows.UIElement
System.Windows.FrameworkElement
System.Windows.Controls.Control
System.Windows.Controls.Primitives.RangeBase
System.Windows.Controls.Primitives.ScrollBar
System.Windows.Controls.ProgressBar
System.Windows.Controls.Slider
Namespace: System.Windows.Controls.Primitives
Assembly: System.Windows (in System.Windows.dll)
Syntax
'Declaration
Public MustInherit Class RangeBase _
Inherits Control
public abstract class RangeBase : Control
The RangeBase type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
.gif "Public property") .gif "Supported by Silverlight for Windows Phone") |
ActualHeight | Gets the rendered height of a FrameworkElement. (Inherited from FrameworkElement.) |
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ActualWidth | Gets the rendered width of a FrameworkElement. (Inherited from FrameworkElement.) |
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AllowDrop | Gets or sets a value that determines whether this UIElement can be a drop target for purposes of Silverlight drag-and-drop operations. (Inherited from UIElement.) |
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Background | Gets or sets a brush that provides the background of the control. (Inherited from Control.) |
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BorderBrush | Gets or sets a brush that describes the border background of a control. (Inherited from Control.) |
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BorderThickness | Gets or sets the border thickness of a control. (Inherited from Control.) |
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CacheMode | Gets or sets a value that indicates that rendered content should be cached when possible. (Inherited from UIElement.) |
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CharacterSpacing | Gets or sets the distance between characters of text in the control measured in 1000ths of the font size. (Inherited from Control.) |
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Clip | Gets or sets the Geometry used to define the outline of the contents of a UIElement. (Inherited from UIElement.) |
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Cursor | Gets or sets the cursor image that displays while the mouse pointer is over a FrameworkElement. (Inherited from FrameworkElement.) |
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DataContext | Gets or sets the data context for a FrameworkElement when it participates in data binding. (Inherited from FrameworkElement.) |
.gif "Protected property") |
DefaultStyleKey | Gets or sets the key that references the default style for the control. (Inherited from Control.) |
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DesiredSize | Gets the size that this UIElement computed during the measure pass of the layout process. (Inherited from UIElement.) |
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Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
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Effect | Gets or sets the pixel shader effect to use for rendering this UIElement. (Inherited from UIElement.) |
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FlowDirection | Gets or sets the direction that text and other user interface elements flow within any parent element that controls their layout. (Inherited from FrameworkElement.) |
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FontFamily | Gets or sets the font used to display text in the control. (Inherited from Control.) |
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FontSize | Gets or sets the size of the text in this control. (Inherited from Control.) |
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FontStretch | Gets or sets the degree to which a font is condensed or expanded on the screen. (Inherited from Control.) |
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FontStyle | Gets or sets the style in which the text is rendered. (Inherited from Control.) |
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FontWeight | Gets or sets the thickness of the specified font. (Inherited from Control.) |
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Foreground | Gets or sets a brush that describes the foreground color. (Inherited from Control.) |
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Height | Gets or sets the suggested height of a FrameworkElement. (Inherited from FrameworkElement.) |
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HorizontalAlignment | Gets or sets the horizontal alignment characteristics that are applied to a FrameworkElement when it is composed in a layout parent, such as a panel or items control. (Inherited from FrameworkElement.) |
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HorizontalContentAlignment | Gets or sets the horizontal alignment of the control's content. (Inherited from Control.) |
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IsEnabled | Gets or sets a value indicating whether the user can interact with the control. (Inherited from Control.) |
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IsHitTestVisible | Gets or sets whether the contained area of this UIElement can return true values for hit testing. (Inherited from UIElement.) |
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IsTabStop | Gets or sets a value that indicates whether a control is included in tab navigation. (Inherited from Control.) |
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Language | Gets or sets localization/globalization language information that applies to a FrameworkElement. (Inherited from FrameworkElement.) |
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LargeChange | Gets or sets a value to be added to or subtracted from the Value of a RangeBase control. |
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Margin | Gets or sets the outer margin of a FrameworkElement. (Inherited from FrameworkElement.) |
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MaxHeight | Gets or sets the maximum height constraint of a FrameworkElement. (Inherited from FrameworkElement.) |
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Maximum | Gets or sets the highest possible Value of the range element. |
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MaxWidth | Gets or sets the maximum width constraint of a FrameworkElement. (Inherited from FrameworkElement.) |
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MinHeight | Gets or sets the minimum height constraint of a FrameworkElement. (Inherited from FrameworkElement.) |
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Minimum | Gets or sets the Minimum possible Value of the range element. |
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MinWidth | Gets or sets the minimum width constraint of a FrameworkElement. (Inherited from FrameworkElement.) |
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Name | Gets or sets the identifying name of the object. When a XAML processor creates the object tree from XAML markup, run-time code can refer to the XAML-declared object by this name. (Inherited from FrameworkElement.) |
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Opacity | Gets or sets the degree of the object's opacity. (Inherited from UIElement.) |
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OpacityMask | Gets or sets the brush used to alter the opacity of regions of this object. (Inherited from UIElement.) |
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Padding | Gets or sets the padding inside a control. (Inherited from Control.) |
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Parent | Gets the parent object of this FrameworkElement in the object tree. (Inherited from FrameworkElement.) |
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Projection | Gets or sets the perspective projection (3-D effect) to apply when rendering this UIElement. (Inherited from UIElement.) |
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RenderSize | Gets the final render size of a UIElement. (Inherited from UIElement.) |
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RenderTransform | Gets or sets transform information that affects the rendering position of a UIElement. (Inherited from UIElement.) |
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RenderTransformOrigin | Gets or sets the origin point of any possible render transform declared by RenderTransform, relative to the bounds of the UIElement. (Inherited from UIElement.) |
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Resources | Gets the locally defined resource dictionary. In XAML, you can establish resource items as child object elements of a frameworkElement.Resources property element, through XAML implicit collection syntax. (Inherited from FrameworkElement.) |
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SmallChange | Gets or sets a Value to be added to or subtracted from the Value of a RangeBase control. |
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Style | Gets or sets an instance Style that is applied for this object during rendering. (Inherited from FrameworkElement.) |
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TabIndex | Gets or sets a value that determines the order in which elements receive focus when the user navigates through controls by using the TAB key. (Inherited from Control.) |
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TabNavigation | Gets or sets a value that modifies how tabbing and TabIndex work for this control. (Inherited from Control.) |
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Tag | Gets or sets an arbitrary object value that can be used to store custom information about this object. (Inherited from FrameworkElement.) |
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Template | Gets or sets a control template. (Inherited from Control.) |
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Triggers | Gets the collection of triggers for animations that are defined for a FrameworkElement. (Inherited from FrameworkElement.) |
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UseLayoutRounding | Gets or sets a value that determines whether rendering for the object and its visual subtree should use rounding behavior that aligns rendering to whole pixels. (Inherited from UIElement.) |
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Value | Gets or sets the current setting of the range control, which may be coerced. |
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VerticalAlignment | Gets or sets the vertical alignment characteristics that are applied to a FrameworkElement when it is composed in a parent object such as a panel or items control. (Inherited from FrameworkElement.) |
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VerticalContentAlignment | Gets or sets the vertical alignment of the control's content. (Inherited from Control.) |
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Visibility | Gets or sets the visibility of a UIElement. A UIElement that is not visible does not render and does not communicate its desired size to layout. (Inherited from UIElement.) |
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Width | Gets or sets the width of a FrameworkElement. (Inherited from FrameworkElement.) |
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Methods
| Name | Description | |
|---|---|---|
.gif "Public method") |
AddHandler | Adds a routed event handler for a specified routed event, adding the handler to the handler collection on the current element. Specify handledEventsToo as true to have the provided handler be invoked for routed event that had already been marked as handled by another element along the event route. (Inherited from UIElement.) |
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ApplyTemplate | Loads the relevant control template so that its parts can be referenced. (Inherited from Control.) |
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Arrange | Positions child objects and determines a size for a UIElement. Parent objects that implement custom layout for their child elements should call this method from their layout override implementations to form a recursive layout update. (Inherited from UIElement.) |
.gif "Protected method") |
ArrangeOverride | Provides the behavior for the Arrange pass of Silverlight layout. Classes can override this method to define their own Arrange pass behavior. (Inherited from FrameworkElement.) |
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CaptureMouse | Sets mouse capture to a UIElement. (Inherited from UIElement.) |
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CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
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ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
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FindName | Retrieves an object that has the specified identifier name. (Inherited from FrameworkElement.) |
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Focus | Attempts to set the focus on the control. (Inherited from Control.) |
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GetAnimationBaseValue | Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
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GetBindingExpression | Retrieves the BindingExpression for a dependency property where a binding is established. (Inherited from FrameworkElement.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetTemplateChild | Retrieves the named element in the instantiated ControlTemplate visual tree. (Inherited from Control.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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GetValue | Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.) |
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InvalidateArrange | Invalidates the arrange state (layout) for a UIElement. After the invalidation, the UIElement will have its layout updated, which will occur asynchronously. (Inherited from UIElement.) |
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InvalidateMeasure | Invalidates the measurement state (layout) for a UIElement. (Inherited from UIElement.) |
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Measure | Updates the DesiredSize of a UIElement. Typically, objects that implement custom layout for their layout children call this method from their own MeasureOverride implementations to form a recursive layout update. (Inherited from UIElement.) |
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MeasureOverride | Provides the behavior for the Measure pass of Silverlight layout. Classes can override this method to define their own Measure pass behavior. (Inherited from FrameworkElement.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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OnApplyTemplate | When overridden in a derived class, is invoked whenever application code or internal processes (such as a rebuilding layout pass) call ApplyTemplate. In simplest terms, this means the method is called just before a UI element displays in an application. For more information, see Remarks. (Inherited from FrameworkElement.) |
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OnCreateAutomationPeer | When implemented in a derived class, returns class-specific AutomationPeer implementations for the Silverlight automation infrastructure. (Inherited from UIElement.) |
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OnDoubleTap | Called before the DoubleTap event occurs. (Inherited from Control.) |
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OnDragEnter | Called before the DragEnter event occurs. (Inherited from Control.) |
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OnDragLeave | Called before the DragLeave event occurs. (Inherited from Control.) |
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OnDragOver | Called before the DragOver event occurs. (Inherited from Control.) |
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OnDrop | Called before the Drop event occurs. (Inherited from Control.) |
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OnGotFocus | Called before the GotFocus event occurs. (Inherited from Control.) |
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OnHold | Called before the Hold event occurs. (Inherited from Control.) |
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OnKeyDown | Called before the KeyDown event occurs. (Inherited from Control.) |
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OnKeyUp | Called before the KeyUp event occurs. (Inherited from Control.) |
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OnLostFocus | Called before the LostFocus event occurs. (Inherited from Control.) |
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OnLostMouseCapture | Called before the LostMouseCapture event occurs to provide handling for the event in a derived class without attaching a delegate. (Inherited from Control.) |
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OnManipulationCompleted | Called before the ManipulationCompleted event occurs. (Inherited from Control.) |
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OnManipulationDelta | Called before the ManipulationDelta event occurs. (Inherited from Control.) |
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OnManipulationStarted | Called before the ManipulationStarted event occurs. (Inherited from Control.) |
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OnMaximumChanged | Called when the Maximum property changes. |
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OnMinimumChanged | Called when the Minimum property changes. |
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OnMouseEnter | Called before the MouseEnter event occurs. (Inherited from Control.) |
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OnMouseLeave | Called before the MouseLeave event occurs. (Inherited from Control.) |
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OnMouseLeftButtonDown | Called before the MouseLeftButtonDown event occurs. (Inherited from Control.) |
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OnMouseLeftButtonUp | Called before the MouseLeftButtonUp event occurs. (Inherited from Control.) |
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OnMouseMove | Called before the MouseMove event occurs. (Inherited from Control.) |
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OnMouseRightButtonDown | Called before the MouseRightButtonDown event occurs. (Inherited from Control.) |
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OnMouseRightButtonUp | Called before the MouseRightButtonUp event occurs. (Inherited from Control.) |
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OnMouseWheel | Called before the MouseWheel event occurs to provide handling for the event in a derived class without attaching a delegate. (Inherited from Control.) |
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OnTap | Called before the Tap event occurs. (Inherited from Control.) |
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OnTextInput | Called before the TextInput event occurs. (Inherited from Control.) |
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OnTextInputStart | Called before the TextInputStart event occurs. (Inherited from Control.) |
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OnTextInputUpdate | Called before the TextInputUpdate event occurs. (Inherited from Control.) |
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OnValueChanged | Raises the ValueChanged routed event. |
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ReadLocalValue | Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.) |
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ReleaseMouseCapture | Removes mouse capture from a UIElement. After this call, typically no object holds mouse capture. (Inherited from UIElement.) |
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RemoveHandler | Removes the specified routed event handler from this UIElement. (Inherited from UIElement.) |
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SetBinding | Attaches a binding to a FrameworkElement, using the provided binding object, and returns a BindingExpressionBase for possible later use. (Inherited from FrameworkElement.) |
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SetValue | Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.) |
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ToString | Provides a string representation of a RangeBase object. (Overrides Object.ToString().) |
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TransformToVisual | Returns a transform object that can be used to transform coordinates from the UIElement to the specified object. (Inherited from UIElement.) |
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UpdateLayout | Ensures that all positions of child objects of a UIElement are properly updated for layout. (Inherited from UIElement.) |
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Events
| Name | Description | |
|---|---|---|
.gif "Public event") |
BindingValidationError | Occurs when a data validation error is reported by a binding source. (Inherited from FrameworkElement.) |
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DataContextChanged | Occurs when the data context for this element changes. (Inherited from FrameworkElement.) |
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DoubleTap | Occurs when a DoubleTap gesture is committed while over this UIElement. (Inherited from UIElement.) |
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DragEnter | Occurs when the input system reports an underlying drag event with this element as the target. (Inherited from UIElement.) |
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DragLeave | Occurs when the input system reports an underlying drag event with this element as the origin. (Inherited from UIElement.) |
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DragOver | Occurs when the input system reports an underlying drag event with this element as the potential drop target. (Inherited from UIElement.) |
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Drop | Occurs when the input system reports an underlying drop event with this element as the drop target. (Inherited from UIElement.) |
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GotFocus | Occurs when a UIElement receives focus. (Inherited from UIElement.) |
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Hold | Occurs when a Hold gesture is committed while over this UIElement. (Inherited from UIElement.) |
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IsEnabledChanged | Occurs when the IsEnabled property changes. (Inherited from Control.) |
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KeyDown | Occurs when a keyboard key is pressed while the UIElement has focus. (Inherited from UIElement.) |
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KeyUp | Occurs when a keyboard key is released while the UIElement has focus. (Inherited from UIElement.) |
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LayoutUpdated | Occurs when the layout of the Silverlight visual tree changes. (Inherited from FrameworkElement.) |
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Loaded | Occurs when a FrameworkElement has been constructed and added to the object tree. (Inherited from FrameworkElement.) |
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LostFocus | Occurs when a UIElement loses focus. (Inherited from UIElement.) |
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LostMouseCapture | Occurs when the UIElement loses mouse capture. (Inherited from UIElement.) |
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ManipulationCompleted | Occurs when a manipulation and inertia on the UIElement is complete. (Inherited from UIElement.) |
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ManipulationDelta | Occurs when the input device changes position during a manipulation. (Inherited from UIElement.) |
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ManipulationStarted | Occurs when an input device begins a manipulation on the UIElement. (Inherited from UIElement.) |
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MediaCommand | Occurs when a button is pressed on a remote control. (Inherited from UIElement.) |
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MouseEnter | Occurs when the mouse (or a stylus) enters the bounding area of a UIElement. (Inherited from UIElement.) |
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MouseLeave | Occurs when the mouse (or the stylus) leaves the bounding area of a UIElement. (Inherited from UIElement.) |
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MouseLeftButtonDown | Occurs when the left mouse button is pressed (or when the tip of the stylus touches the tablet) while the mouse pointer is over a UIElement. (Inherited from UIElement.) |
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MouseLeftButtonUp | Occurs when the left mouse button is released (or the tip of the stylus is removed from the tablet) while the mouse (or the stylus) is over a UIElement (or while a UIElement holds mouse capture). (Inherited from UIElement.) |
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MouseMove | Occurs when the coordinate position of the mouse (or stylus) changes while over a UIElement (or while a UIElement holds mouse capture). (Inherited from UIElement.) |
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MouseRightButtonDown | Occurs when the right mouse button is pressed while the mouse pointer is over a UIElement. (Inherited from UIElement.) |
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MouseRightButtonUp | Occurs when the right mouse button is released while the mouse pointer is over a UIElement. However, this event will only be raised if a caller marks the preceding MouseRightButtonDown event as handled; see Remarks. (Inherited from UIElement.) |
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MouseWheel | Occurs when the user rotates the mouse wheel while the mouse pointer is over a UIElement, or the UIElement has focus. (Inherited from UIElement.) |
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SizeChanged | Occurs when either the ActualHeight or the ActualWidth properties change value on a FrameworkElement. (Inherited from FrameworkElement.) |
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Tap | Occurs when a Tap gesture is committed while over this UIElement. (Inherited from UIElement.) |
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TextInput | Occurs when a UI element gets text in a device-independent manner. (Inherited from UIElement.) |
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TextInputStart | Occurs when a UI element initially gets text in a device-independent manner. (Inherited from UIElement.) |
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TextInputUpdate | Occurs when text continues to be composed via an input method editor (IME). (Inherited from UIElement.) |
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Unloaded | Occurs when this object is no longer connected to the main object tree. (Inherited from FrameworkElement.) |
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ValueChanged | Occurs when the range value changes. |
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Fields
| Name | Description | |
|---|---|---|
.gif "Public field") .gif "Static member") |
LargeChangeProperty | Identifies the LargeChange dependency property. |
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MaximumProperty | Identifies the Maximum dependency property. |
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MinimumProperty | Identifies the Minimum dependency property. |
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SmallChangeProperty | Identifies the SmallChange dependency property. |
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ValueProperty | Identifies the Value dependency property. |
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Remarks
A RangeBase control has a Value that can be set between the Minimum and Maximum properties. The RangeBase visually indicates its Value.
A RangeBase control has a limited default style. If you want to enhance the appearance of the control, you can create a new ControlTemplate or DataTemplate.
The RangeBase control uses property coercion to make sure that the Minimum, Maximum, and Value properties maintain the relationship of Minimum ≤ Value ≤ Maximum. Coercion affects the return value of each property, but not the value of its associated field. If the conditions causing coercion are removed, the return value of each property once again reflects the true value of its associated field.
The following table shows an example sequence of property settings and the resulting values for Minimum, Maximum, and Value.
Action |
Minimum |
Maximum |
Value |
|---|---|---|---|
Original settings |
Field = 15 Property = 15 |
Field = 100 Property = 100 |
Field =30 Property = 30 |
Set Minimum = 200 |
Field = 200 Property = 200 |
Field = 100 Property = 200 |
Field = 30 Property = 200 |
Set Value = 45 |
Field = 200 Property = 200 |
Field = 100 Property = 200 |
Field = 45 Property = 200 |
Set Minimum = 0 |
Field = 0 Property = 0 |
Field = 100 Property = 100 |
Field = 45 Property = 45 |
- Setting Minimum, Maximum, Value, SmallChange, or LargeChange to NaN, NegativeInfinity, or PositiveInfinity raises an ArgumentException. In addition, setting SmallChange or LargeChange to a value less than zero raises an ArgumentException.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.