Class DropDownButton

Represents DropDownButton control.

Inheritance
System.Object
RibbonItemsControl
DropDownButton
SplitButton
Implements
System.IDisposable
Inherited Members
Namespace: Syncfusion.Windows.Tools.Controls
Assembly: Syncfusion.Tools.Wpf.dll
Syntax
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public class DropDownButton : RibbonItemsControl, ICollapsable, IRibbonControl, IDisposable
Remarks

DropDownButton class represents a control that can display child UIElements in a dropdown popup.

Examples

This example shows how to create a DropDownButton in XAML. 

<ribbon:DropDownButton SmallIcon="SampleImages/ChangeCase16.png">
<ribbon:RibbonMenuItem Header="Sentence case"/>
<ribbon:RibbonMenuItem Header="lowercase"/>
<ribbon:RibbonMenuItem Header="UPPERCASE"/>
<ribbon:RibbonMenuItem Header="Capitalize Each Word"/>
<ribbon:RibbonMenuItem Header="tOOGLE cASE"/>
</ribbon:DropDownButton>

This example shows how to create a DropDownButton in C#. 

DropDownButton button = new DropDownButton();
RibbonMenuItem item = new RibbonMenuItem();
button.Items.Add(item);
stackPanel.Children.Add(button);

Constructors

DropDownButton()

Initializes a new instance of the DropDownButton class.

Declaration
public DropDownButton()

Fields

IsGroupProperty

Defines IsGrouped dependency property.

Declaration
public static readonly DependencyProperty IsGroupProperty
Field Value
Type
System.Windows.DependencyProperty

IsPressedProperty

Identifies when button is pressed. This is a dependency property.

Declaration
public static readonly DependencyProperty IsPressedProperty
Field Value
Type
System.Windows.DependencyProperty

IsPressedPropertyKey

Key through which IsPressed property can be changed. This is a dependency property key.

Declaration
protected static readonly DependencyPropertyKey IsPressedPropertyKey
Field Value
Type
System.Windows.DependencyPropertyKey

PathGeometryProperty

Defines path which is contained in toggle button. This is a dependency property.

Declaration
public static readonly DependencyProperty PathGeometryProperty
Field Value
Type
System.Windows.DependencyProperty

ToggleButtonToolTipProperty

Defines tooltip for toggle button which is contained in large size form dropdown . This is a dependency property.

Declaration
public static readonly DependencyProperty ToggleButtonToolTipProperty
Field Value
Type
System.Windows.DependencyProperty

Properties

IsGroup

Gets or sets a value indicating whether the user can add child items in QAT using right click. If true, user can not add its child as QAT item. This is a dependency property.

Declaration
public bool IsGroup { get; set; }
Property Value
Type Description
System.Boolean

true if this instance is group; otherwise, false.

IsPressed

Gets a value indicating whether this button is pressed.

Declaration
public bool IsPressed { get; }
Property Value
Type Description
System.Boolean

true if this instance is pressed; otherwise, false.

PathGeometry

Gets or sets path which is contained in toggle button.

Declaration
public Geometry PathGeometry { get; set; }
Property Value
Type Description
System.Windows.Media.Geometry

Type: System.Windows.Media.Geometry Geometry used in bottom part of the DropDownButton.

ToggleButtonToolTip

Gets or sets tooltip for toggle button which is available at bottom part of large size form.

Declaration
public object ToggleButtonToolTip { get; set; }
Property Value
Type Description
System.Object

Type: System.Object Object to display as a tooltip in bottom part of the DropDownButton.

Methods

Dispose()

Dispose all used objects

Declaration
public void Dispose()

GetContainerForItemOverride()

Creates or identifies the element that is used to display the given item.

Declaration
protected override DependencyObject GetContainerForItemOverride()
Returns
Type Description
System.Windows.DependencyObject

The element that is used to display the given item.

IsItemItsOwnContainerOverride(Object)

Determines if the specified item is (or is eligible to be) its own container.

Declaration
protected override bool IsItemItsOwnContainerOverride(object item)
Parameters
Type Name Description
System.Object item

The item to check.
Returns
Type Description
System.Boolean

true if the item is (or is eligible to be) its own container; otherwise, false.

OnApplyTemplate()

When overridden in a derived class, is invoked whenever application code or internal processes call ApplyTemplate.

Declaration
public override void OnApplyTemplate()
Overrides

OnCreateAutomationPeer()

Returns class-specific AutomationPeer implementations for the Windows Presentation Foundation infrastructure.

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

The type-specific AutomationPeer implementation.

OnGotKeyboardFocus(KeyboardFocusChangedEventArgs)

Invoked when an unhandled Keyboard.GotKeyboardFocus attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration
protected override void OnGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
Parameters
Type Name Description
System.Windows.Input.KeyboardFocusChangedEventArgs e

The event data

OnIsDropDownOpenChanged(DependencyPropertyChangedEventArgs)

Invoked when DropDown open changed.

Declaration
protected override void OnIsDropDownOpenChanged(DependencyPropertyChangedEventArgs e)
Parameters
Type Name Description
System.Windows.DependencyPropertyChangedEventArgs e

The event data
Overrides

OnIsPressedChanged(DependencyPropertyChangedEventArgs)

Updates property value cache and raises IsPressedChanged event.

Declaration
protected virtual void OnIsPressedChanged(DependencyPropertyChangedEventArgs e)
Parameters
Type Name Description
System.Windows.DependencyPropertyChangedEventArgs e

Property changes details, such as old value and new value.

OnItemsChanged(NotifyCollectionChangedEventArgs)

Invoked when the System.Windows.Controls.ItemsControl.Items property changes.

Declaration
protected override void OnItemsChanged(NotifyCollectionChangedEventArgs e)
Parameters
Type Name Description
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

Information about the change.

OnKeyDown(KeyEventArgs)

Invoked when an unhandled Keyboard.KeyDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration
protected override void OnKeyDown(KeyEventArgs e)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs e

The event data
Overrides

OnMouseLeave(MouseEventArgs)

Provides class handling for the OnMouseLeave routed event that occurs when a mouse is released inside this element.

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

The event data.

OnMouseRightButtonUp(MouseButtonEventArgs)

Invoked when an unhandled System.Windows.UIElement.MouseRightButtonUp�routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration
protected override void OnMouseRightButtonUp(MouseButtonEventArgs e)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs e

The System.Windows.Input.MouseButtonEventArgs that contains the event data. The event data reports that the right mouse button was released.
Overrides

OnPathGeometryChanged(DependencyPropertyChangedEventArgs)

Updates property value cache and raises PathGeometryChanged event.

Declaration
protected virtual void OnPathGeometryChanged(DependencyPropertyChangedEventArgs e)
Parameters
Type Name Description
System.Windows.DependencyPropertyChangedEventArgs e

Property changes details, such as old value and new value.

OnStylusSystemGesture(StylusSystemGestureEventArgs)

Invoked when an unhandled Stylus.StylusSystemGesture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration
protected override void OnStylusSystemGesture(StylusSystemGestureEventArgs e)
Parameters
Type Name Description
System.Windows.Input.StylusSystemGestureEventArgs e

The event data
Overrides

OnTouchUp(TouchEventArgs)

Provides class handling for the TouchUp routed event that occurs when a touch is released inside this element.

Declaration
protected override void OnTouchUp(TouchEventArgs e)
Parameters
Type Name Description
System.Windows.Input.TouchEventArgs e

The event data
Overrides

SetIsPressed(Boolean)

Sets IsPressed dependency property.

Declaration
protected void SetIsPressed(bool pressed)
Parameters
Type Name Description
System.Boolean pressed

Value which should be set.

Events

IsPressedChanged

Event that is raised when IsPressed property is changed.

Declaration
public event PropertyChangedCallback IsPressedChanged
Event Type
Type
System.Windows.PropertyChangedCallback

PathGeometryChanged

Event that is raised when PathGeometry property is changed.

Declaration
public event PropertyChangedCallback PathGeometryChanged
Event Type
Type
System.Windows.PropertyChangedCallback

Implements

System.IDisposable