Documentation

Class RadRadialMenu

Represents a control that enables a user to visualize a set of RadRadialMenuItem.

Inheritance
System.Object
RadRadialMenu
Namespace: Telerik.Windows.Controls
Assembly: Telerik.Windows.Controls.Navigation.dll

Syntax

[TelerikToolboxCategory("Navigation")]
public class RadRadialMenu : Control, INotifyPropertyChanged, IThemable

Constructors

RadRadialMenu()

Initializes a new instance of the RadRadialMenu class.

Declaration
public RadRadialMenu()

Fields

AutoCalculateStartAngleProperty

Identifies the AutoCalculateStartAngle dependency property.

Declaration
public static readonly DependencyProperty AutoCalculateStartAngleProperty
Field Value
System.Windows.DependencyProperty

AutoSizeMenuItemsProperty

Identifies the AutoSizeMenuItems dependency property.

Declaration
public static readonly DependencyProperty AutoSizeMenuItemsProperty
Field Value
System.Windows.DependencyProperty

ClosedEvent

Identifies the Closed routed event.

Declaration
public static readonly RoutedEvent ClosedEvent
Field Value
System.Windows.RoutedEvent

ContentMenuBackgroundStyleProperty

Identifies the ContentMenuBackgroundStyle dependency property.

Declaration
public static readonly DependencyProperty ContentMenuBackgroundStyleProperty
Field Value
System.Windows.DependencyProperty

HideEventNameProperty

Identifies the HideEventName dependency property.

Declaration
public static readonly DependencyProperty HideEventNameProperty
Field Value
System.Windows.DependencyProperty

InnerNavigationRadiusFactorProperty

Identifies the InnerNavigationRadiusFactor dependency property.

Declaration
public static readonly DependencyProperty InnerNavigationRadiusFactorProperty
Field Value
System.Windows.DependencyProperty

InnerRadiusFactorProperty

Identifies the InnerRadiusFactor dependency property.

Declaration
public static readonly DependencyProperty InnerRadiusFactorProperty
Field Value
System.Windows.DependencyProperty

IsOpenProperty

Identifies the IsOpen dependency property.

Declaration
public static readonly DependencyProperty IsOpenProperty
Field Value
System.Windows.DependencyProperty

ItemsSourceProperty

Identifies the ItemsSource dependency property.

Declaration
public static readonly DependencyProperty ItemsSourceProperty
Field Value
System.Windows.DependencyProperty

NavigatedEvent

Identifies the Navigate routed event.

Declaration
public static readonly RoutedEvent NavigatedEvent
Field Value
System.Windows.RoutedEvent

NavigationMenuBackgroundStyleProperty

Identifies the NavigationMenuBackgroundStyle dependency property.

Declaration
public static readonly DependencyProperty NavigationMenuBackgroundStyleProperty
Field Value
System.Windows.DependencyProperty

OpenedEvent

Identifies the Opened routed event.

Declaration
public static readonly RoutedEvent OpenedEvent
Field Value
System.Windows.RoutedEvent

OpeningEvent

Identifies the Opening routed event.

Declaration
public static readonly RoutedEvent OpeningEvent
Field Value
System.Windows.RoutedEvent

OuterBorderPaddingProperty

Identifies the PlacementMode dependency property.

Declaration
public static readonly DependencyProperty OuterBorderPaddingProperty
Field Value
System.Windows.DependencyProperty

OuterRadiusFactorProperty

Identifies the OuterRadiusFactor dependency property.

Declaration
public static readonly DependencyProperty OuterRadiusFactorProperty
Field Value
System.Windows.DependencyProperty

PopupHorizontalOffsetProperty

Identifies the PlacementMode dependency property.

Declaration
public static readonly DependencyProperty PopupHorizontalOffsetProperty
Field Value
System.Windows.DependencyProperty

PopupPlacementProperty

Identifies the PlacementMode dependency property.

Declaration
public static readonly DependencyProperty PopupPlacementProperty
Field Value
System.Windows.DependencyProperty

PopupVerticalOffsetProperty

Identifies the PlacementMode dependency property.

Declaration
public static readonly DependencyProperty PopupVerticalOffsetProperty
Field Value
System.Windows.DependencyProperty

PreviewToolTipOpenEvent

Identifies the PreviewToolTipOpen routed event.

Declaration
public static readonly RoutedEvent PreviewToolTipOpenEvent
Field Value
System.Windows.RoutedEvent

RadialContextMenuProperty

Identifies the RadRadialMenu attached property.

Declaration
public static readonly DependencyProperty RadialContextMenuProperty
Field Value
System.Windows.DependencyProperty

ShowEventNameProperty

Identifies the ShowEventName dependency property.

Declaration
public static readonly DependencyProperty ShowEventNameProperty
Field Value
System.Windows.DependencyProperty

ShowToolTipProperty

Identifies the ShowToolTip dependency property.

Declaration
public static readonly DependencyProperty ShowToolTipProperty
Field Value
System.Windows.DependencyProperty

StartAngleProperty

Identifies the StartAngle dependency property.

Declaration
public static readonly DependencyProperty StartAngleProperty
Field Value
System.Windows.DependencyProperty

StaysOpenOnShowProperty

Identifies the StaysOpenOnShow dependency property.

Declaration
public static readonly DependencyProperty StaysOpenOnShowProperty
Field Value
System.Windows.DependencyProperty

Properties

AnimationSpeedFactor

Gets or sets the speed factor for the animations in RadRadialMenu. The default value is 1.5d. The value is always a positive number. The min value is 0.1d.

Declaration
public static double AnimationSpeedFactor { get; set; }
Property Value
System.Double

AutoCalculateStartAngle

Gets or sets a value that indicates whether the start angle of the first menu item should be calculated automatically. If set to false the StartAngle property will be used to determine the starting position of the first menu item. This property only works when AutoSizeMenuItems is set to true.

Declaration
public bool AutoCalculateStartAngle { get; set; }
Property Value
System.Boolean

AutoSizeMenuItems

Gets or sets whether the menu items would be auto sized to fill the whole circle of the menu. Setting this property to true allows you to add more than 8 menu items.

Declaration
public bool AutoSizeMenuItems { get; set; }
Property Value
System.Boolean

Commands

Gets the collection with all the custom commands registered with the CommandService.

Declaration
public CommandCollection<RadRadialMenu> Commands { get; }
Property Value
CommandCollection<RadRadialMenu>

Remarks

Custom commands have higher priority than the built-in (default) ones.

CommandService

Gets the CommandService instance that manages the commanding behavior of this instance.

Declaration
public CommandService CommandService { get; }
Property Value
CommandService

ContentMenuBackgroundStyle

Gets or sets the System.Windows.Style value that defines the appearance of the menu items panel.

Declaration
public Style ContentMenuBackgroundStyle { get; set; }
Property Value
System.Windows.Style

Remarks

The System.Windows.Style should target the System.Windows.Shapes.Rectangle type.

Examples
<telerikPrimitives:RadRadialMenu>
    <telerikPrimitives:RadRadialMenu.ContentMenuBackgroundStyle>
        <Style TargetType="Rectangle">
            <Setter Property="Fill" Value="LightGreen"/>
        </Style>
    </telerikPrimitives:RadRadialMenu.ContentMenuBackgroundStyle>
</telerikPrimitives:RadRadialMenu>

EnableQuickMode

Sets or gets whether the RadRadialMenu is in quick mode. If true, the animation is disabled and the control doesn't close when hiding.

Declaration
public static bool EnableQuickMode { get; set; }
Property Value
System.Boolean

HideEventName

Gets or sets the name of the event that will hide the context menu.

Declaration
public string HideEventName { get; set; }
Property Value
System.String

The name of the event.

InnerNavigationRadiusFactor

Gets or sets the factor that defines the inner radius of the panel holding the NavigationItemButton items as a fraction of the size of the RadRadialMenu control.

Declaration
public double InnerNavigationRadiusFactor { get; set; }
Property Value
System.Double

The value should be between 0 and 1. If the passed value lies outside this range, it is automatically set to the nearest boundary value.
Examples
<telerikPrimitives:RadRadialMenu InnerNavigationRadiusFactor="0.3"/>

InnerRadiusFactor

Gets or sets the factor that defines the inner radius of the panel holding the RadRadialMenuItem items as a fraction of the size of the RadRadialMenu control.

Declaration
public double InnerRadiusFactor { get; set; }
Property Value
System.Double

The value should be between 0 and 1. If the passed value lies outside this range, it is automatically set to the nearest boundary value.

Examples
<telerikPrimitives:RadRadialMenu InnerRadiusFactor="0.3"/>

IsOpen

Gets or sets a value that indicates whether the RadRadialMenu is open.

Declaration
public bool IsOpen { get; set; }
Property Value
System.Boolean

Examples
<telerikPrimitives:RadRadialMenu IsOpen="True"/>

IsTemplateApplied

Determines whether the OnApplyTemplate() method and the ApplyTemplateCore() routine is passed.

Declaration
protected bool IsTemplateApplied { get; }
Property Value
System.Boolean

ItemContainerGenerator

Gets the RadialMenuItemContainerGenerator of the RadRadialMenu

Declaration
public RadialMenuItemContainerGenerator ItemContainerGenerator { get; }
Property Value
RadialMenuItemContainerGenerator

Items

Gets the collection of all RadRadialMenuItem.

Declaration
public ObservableCollection<RadRadialMenuItem> Items { get; }
Property Value
System.Collections.ObjectModel.ObservableCollection<RadRadialMenuItem>

Examples
<telerikPrimitives:RadRadialMenu x:Name="radialMenu">
    <telerikPrimitives:RadialMenuItem Header="Item 1"/>
    <telerikPrimitives:RadialMenuItem Header="Item 2"/>
    <telerikPrimitives:RadialMenuItem Header="Item 3"/>
</telerikPrimitives:RadRadialMenu>
var items = this.radialMenu.Items;

ItemsSource

Gets or sets a collection used to generate the content of the RadRadialMenu.

Declaration
public IEnumerable<IRadialMenuItem> ItemsSource { get; set; }
Property Value
System.Collections.Generic.IEnumerable<IRadialMenuItem>

NavigationMenuBackgroundStyle

Gets or sets the System.Windows.Style value that defines the appearance of the navigation buttons panel.

Declaration
public Style NavigationMenuBackgroundStyle { get; set; }
Property Value
System.Windows.Style

Remarks

The System.Windows.Style should target the System.Windows.Shapes.Rectangle type.

Examples
<telerikPrimitives:RadRadialMenu>
    <telerikPrimitives:RadRadialMenu.NavigationMenuBackgroundStyle>
        <Style TargetType="Rectangle">
            <Setter Property="Fill" Value="LightGreen"/>
        </Style>
    </telerikPrimitives:RadRadialMenu.NavigationMenuBackgroundStyle>
</telerikPrimitives:RadRadialMenu>

OuterBorderPadding

Gets or sets the distance between the outer ring of the RadRadialMenu and its RadRadialMenuItem.

Declaration
public double OuterBorderPadding { get; set; }
Property Value
System.Double

OuterRadiusFactor

Gets or sets the factor that defines the outer radius of the panel holding the NavigationItemButton items as a fraction of the size of the RadRadialMenu control.

Declaration
public double OuterRadiusFactor { get; set; }
Property Value
System.Double

The value should be between 0 and 1. If the passed value lies outside this range, it is automatically set to the nearest boundary value.
Examples
<telerikPrimitives:RadRadialMenu OuterRadiusFactor="0.9"/>

PopupHorizontalOffset

Gets or sets a PopupHorizontalOffset that determines the horizontal offset of the menu's Popup. This is a dependency property. Only used when PopupPlacement i set to Absolute and AbsolutePoint.

Declaration
public double PopupHorizontalOffset { get; set; }
Property Value
System.Double

PopupPlacement

Gets or sets a PopupPlacement that determines where the menu would be position. This is a dependency property.

Declaration
public PlacementMode PopupPlacement { get; set; }
Property Value
System.Windows.Controls.Primitives.PlacementMode

PopupVerticalOffset

Gets or sets a PopupVerticalOffset that determines the horizontal offset of the menu's Popup. This is a dependency property. Only used when PopupPlacement i set to Absolute and AbsolutePoint.

Declaration
public double PopupVerticalOffset { get; set; }
Property Value
System.Double

ShowEventName

Gets or sets the name of the event that will show the context menu.

Declaration
public string ShowEventName { get; set; }
Property Value
System.String

The name of the event.

ShowToolTip

Gets or sets a value that indicates whether a tool tip, displaying the current selected RadRadialMenuItem header text, will be displayed.

Declaration
public bool ShowToolTip { get; set; }
Property Value
System.Boolean

Examples
<telerikPrimitives:RadRadialMenu ShowToolTip="True"/>

StartAngle

Gets or sets the start angle for ordering the RadRadialMenuItem components.

Declaration
public double StartAngle { get; set; }
Property Value
System.Double

The angle is measured in radians.
Examples
<telerikPrimitives:RadRadialMenu StartAngle="45"/>

StaysOpenOnShow

Gets or sets whether the RadRadialMenu will be automatically opened when shown as context menu.

Declaration
public bool StaysOpenOnShow { get; set; }
Property Value
System.Boolean

TargetElement

Gets the target System.Windows.FrameworkElement instance that RadRadialMenu is assigned to.

Declaration
public FrameworkElement TargetElement { get; }
Property Value
System.Windows.FrameworkElement

Remarks

Before the menu is attached to the element this property has null value.

Examples
<TextBlock Text="Some Text">
    <telerikPrimitives:RadRadialContextMenu.Menu>
        <telerikPrimitives:RadRadialMenu x:Name="radialMenu"/>
    </telerikPrimitives:RadRadialContextMenu.Menu>
</TextBlock>

After you perform the action that will attach the menu to the target element, you can use the TargetElement property:

var textBlock = this.radialMenu.TargetElement;

Methods

add_Closed(RadRoutedEventHandler)

Declaration
public void add_Closed(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

add_Navigated(RadRoutedEventHandler)

Declaration
public void add_Navigated(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

add_Opened(RadRoutedEventHandler)

Declaration
public void add_Opened(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

add_Opening(RadRoutedEventHandler)

Declaration
public void add_Opening(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

add_PreviewToolTipOpen(RadRadialMenu.MenuToolTipEventHandler)

Declaration
public void add_PreviewToolTipOpen(RadRadialMenu.MenuToolTipEventHandler value)
Parameters
RadRadialMenu.MenuToolTipEventHandler value

ApplyTemplateCore()

Called when the Framework OnApplyTemplate is called. Inheritors should override this method should they have some custom template-related logic. This is done to ensure that the IsTemplateApplied property is properly initialized.

Declaration
protected bool ApplyTemplateCore()
Returns
System.Boolean

CanUpdateVisualState()

Determines whether the current visual state may be updated.

Declaration
protected virtual bool CanUpdateVisualState()
Returns
System.Boolean

ComposeVisualStateName()

Builds the current visual state for this instance.

Declaration
protected virtual string ComposeVisualStateName()
Returns
System.String

GetRadialContextMenu(DependencyObject)

Returns the instance of current RadRadialMenu that is attached to specific System.Windows.FrameworkElement.

Declaration
public static RadRadialMenu GetRadialContextMenu(DependencyObject obj)
Parameters
System.Windows.DependencyObject obj

The target System.Windows.FrameworkElement.
Returns
RadRadialMenu

The attached RadRadialMenu control.

OnApplyTemplate()

When overridden in a derived class, is invoked whenever application code or internal processes (such as a rebuilding layout pass) call System.Windows.Controls.Control.ApplyTemplate.

Declaration
public override void OnApplyTemplate()

OnCreateAutomationPeer()

Creates a RadRadialMenuAutomationPeer.

Declaration
protected override AutomationPeer OnCreateAutomationPeer()
Returns
System.Windows.Automation.Peers.AutomationPeer

OnInitialized(EventArgs)

Raises the System.Windows.FrameworkElement.Initialized event. This method is invoked whenever System.Windows.FrameworkElement.IsInitialized is set to true internally.

Declaration
protected override void OnInitialized(EventArgs e)
Parameters
System.EventArgs e

The System.Windows.RoutedEventArgs that contains the event data.

OnMouseLeave(MouseEventArgs)

Called before the System.Windows.UIElement.MouseLeave event occurs.

Declaration
protected override void OnMouseLeave(MouseEventArgs e)
Parameters
System.Windows.Input.MouseEventArgs e

The data for the event.

OnMouseLeftButtonUp(MouseButtonEventArgs)

Called before the System.Windows.UIElement.MouseLeftButtonUp event occurs.

Declaration
protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
Parameters
System.Windows.Input.MouseButtonEventArgs e

The data for the event.

OnMouseMove(MouseEventArgs)

Called before the System.Windows.UIElement.MouseMove event occurs.

Declaration
protected override void OnMouseMove(MouseEventArgs e)
Parameters
System.Windows.Input.MouseEventArgs e

The data for the event.

OnNavigating(RadialMenuNavigatingEventArgs)

Fires the Navigating event.

Declaration
protected virtual void OnNavigating(RadialMenuNavigatingEventArgs e)
Parameters
RadialMenuNavigatingEventArgs e

The data for the event.

OnPreviewToolTipOpen(RadRadialMenuItem, PlacementMode, Double, Double, Double)

Creates the MenuToolTipEventArgs and raises the PreviewToolTipOpen routed event.

Declaration
protected virtual MenuToolTipEventArgs OnPreviewToolTipOpen(RadRadialMenuItem menuItem, PlacementMode placement, double horizontalOffset, double verticalOffset, double outerRadius)
Parameters
RadRadialMenuItem menuItem

System.Windows.Controls.Primitives.PlacementMode placement

System.Double horizontalOffset

System.Double verticalOffset

System.Double outerRadius

Returns
MenuToolTipEventArgs

OnPropertyChanged(String)

Called when a value of a property is changed.

Declaration
protected void OnPropertyChanged(string name)
Parameters
System.String name

The name of the property that changes.

OnSelectionChanged(RadRadialMenuItem)

Called when selection is changed.

Declaration
protected virtual void OnSelectionChanged(RadRadialMenuItem item)
Parameters
RadRadialMenuItem item

The changed menu item.

OnTemplateApplied()

Occurs when the OnApplyTemplate method has been called and the template is already successfully applied.

Declaration
protected void OnTemplateApplied()

remove_Closed(RadRoutedEventHandler)

Declaration
public void remove_Closed(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

remove_Navigated(RadRoutedEventHandler)

Declaration
public void remove_Navigated(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

remove_Opened(RadRoutedEventHandler)

Declaration
public void remove_Opened(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

remove_Opening(RadRoutedEventHandler)

Declaration
public void remove_Opening(RadRoutedEventHandler value)
Parameters
RadRoutedEventHandler value

remove_PreviewToolTipOpen(RadRadialMenu.MenuToolTipEventHandler)

Declaration
public void remove_PreviewToolTipOpen(RadRadialMenu.MenuToolTipEventHandler value)
Parameters
RadRadialMenu.MenuToolTipEventHandler value

ResetTheme()

Resets the theme.

Declaration
public void ResetTheme()

SetRadialContextMenu(DependencyObject, RadRadialMenu)

Attaches an instance of RadRadialMenu to a specific System.Windows.FrameworkElement.

Declaration
public static void SetRadialContextMenu(DependencyObject obj, RadRadialMenu value)
Parameters
System.Windows.DependencyObject obj

The target System.Windows.FrameworkElement.
RadRadialMenu value

The RadRadialMenu instance to be attached to the target element.

SetVisualState(String, Boolean)

Applies the specified visual state as current.

Declaration
protected virtual void SetVisualState(string state, bool animate)
Parameters
System.String state

The new visual state.
System.Boolean animate

True to use transitions, false otherwise.

UpdateVisualState(Boolean)

Re-evaluates the current visual state for the control and updates it if necessary.

Declaration
protected virtual void UpdateVisualState(bool animate)
Parameters
System.Boolean animate

True to use transitions during state update, false otherwise.

Events

Closed

Occurs when a RadRadialMenu is closed.

Declaration
[SRCategory("Behavior")]
public event RadRoutedEventHandler Closed
Event Type
RadRoutedEventHandler

Navigated

Occurs when a RadRadialMenu is navigated to another view.

Declaration
[SRCategory("Behavior")]
public event RadRoutedEventHandler Navigated
Event Type
RadRoutedEventHandler

Navigating

Occurs before a menu level changes.

Declaration
public event EventHandler<RadialMenuNavigatingEventArgs> Navigating
Event Type
System.EventHandler<RadialMenuNavigatingEventArgs>

Opened

Occurs when a RadRadialMenu is opened.

Declaration
[SRCategory("Behavior")]
public event RadRoutedEventHandler Opened
Event Type
RadRoutedEventHandler

Opening

Occurs before particular instance of RadRadialMenu opens. If it is handled then RadRadialMenu will not open.

Declaration
[SRCategory("Behavior")]
public event RadRoutedEventHandler Opening
Event Type
RadRoutedEventHandler

PreviewToolTipOpen

Occurs before MenuToolTip is shown.

Declaration
public event RadRadialMenu.MenuToolTipEventHandler PreviewToolTipOpen
Event Type
RadRadialMenu.MenuToolTipEventHandler

PropertyChanged

Occurs when a property value changes.

Declaration
public event PropertyChangedEventHandler PropertyChanged
Event Type
System.ComponentModel.PropertyChangedEventHandler

SelectionChanged

Occurs when menu item is selected/deselected.

Declaration
public event EventHandler<MenuSelectionChangedEventArgs> SelectionChanged
Event Type
System.EventHandler<MenuSelectionChangedEventArgs>

Extension Methods