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DragGestureRecognizer Class

Definition

Provides drag gesture recognition and defines the associated events for dragging and dropping.

public ref class DragGestureRecognizer : Microsoft::Maui::Controls::GestureRecognizer
public class DragGestureRecognizer : Microsoft.Maui.Controls.GestureRecognizer
type DragGestureRecognizer = class
    inherit GestureRecognizer
Public Class DragGestureRecognizer
Inherits GestureRecognizer
Inheritance

Constructors

DragGestureRecognizer()

Initializes a new instance of the DragGestureRecognizer class.

Fields

CanDragProperty

Bindable property for CanDrag.

DragStartingCommandParameterProperty

Bindable property for DragStartingCommandParameter.

DragStartingCommandProperty

Bindable property for DragStartingCommand.

DropCompletedCommandParameterProperty

Bindable property for DropCompletedCommandParameter.

DropCompletedCommandProperty

Bindable property for DropCompletedCommand.

transientNamescope (Inherited from Element)

Properties

AutomationId

Gets or sets a value that allows the automation framework to find and interact with this element.

(Inherited from Element)
BindingContext

Gets or sets an object that contains the properties that will be targeted by the bound properties that belong to this BindableObject. This is a bindable property.

(Inherited from BindableObject)
CanDrag

Gets or sets the value which indicates whether the element the gesture recognizer is attached to can be a drag source.

ClassId

Gets or sets a value used to identify a collection of semantically similar elements.

(Inherited from Element)
Dispatcher

Gets the dispatcher that was available when this bindable object was created, otherwise tries to find the nearest available dispatcher (probably the window's/app's).

(Inherited from BindableObject)
DragStartingCommand

Gets or sets the command to be executed when a drag gesture is first recognized.

DragStartingCommandParameter

Gets or sets the parameter that's to be passed to the DragStartingCommand.

DropCompletedCommand

Gets or sets the command to be executed when a drop gesture is completed.

DropCompletedCommandParameter

Gets or sets the parameter that's to be passed to the DropCompletedCommand.

EffectControlProvider

For internal use by .NET MAUI.

(Inherited from Element)
Effects

Gets or sets the styles and properties that will be applied to the element during runtime.

(Inherited from Element)
Handler

Gets or sets the associated handler for this element.

(Inherited from Element)
Id

Gets a value that can be used to uniquely identify an element throughout the run of your application.

(Inherited from Element)
LogicalChildren
Obsolete.
(Inherited from Element)
Parent

Gets or sets the parent Element of this element.

(Inherited from Element)
RealParent

For internal use by .NET MAUI.

(Inherited from Element)
StyleId

Gets or sets a user defined value to uniquely identify the element.

(Inherited from Element)

Methods

AddLogicalChild(Element)

Adds an Element to the logical children.

(Inherited from Element)
ApplyBindings()

Applies all the current bindings to BindingContext.

(Inherited from BindableObject)
ClearLogicalChildren()

Removes all child Elements.

(Inherited from Element)
ClearValue(BindableProperty)

Clears any value that is previously set for a bindable property.

(Inherited from BindableObject)
ClearValue(BindablePropertyKey)

Clears any value that is previously set for a bindable property, identified by its key.

(Inherited from BindableObject)
CoerceValue(BindableProperty)

Coerces the value of the specified bindable property. This is done by invoking BindableProperty.CoerceValueDelegate of the specified bindable property.

(Inherited from BindableObject)
CoerceValue(BindablePropertyKey)

Coerces the value of the specified bindable property. This is done by invoking BindableProperty.CoerceValueDelegate of the specified bindable property.

(Inherited from BindableObject)
EffectIsAttached(String)

For internal use by .NET MAUI.

(Inherited from Element)
FindByName(String)

Returns the element that has the specified name.

(Inherited from Element)
GetValue(BindableProperty)

Returns the value that is contained in the given bindable property.

(Inherited from BindableObject)
InsertLogicalChild(Int32, Element)

Inserts an Element to the logical children at the specified index.

(Inherited from Element)
IsSet(BindableProperty)

Determines whether or not a bindable property exists and has a value set.

(Inherited from BindableObject)
OnBindingContextChanged()

Invoked whenever the binding context of the element changes. Implement this method to add class handling for this event.

(Inherited from Element)
OnChildAdded(Element)

Raises the ChildAdded event. Implement this method to add class handling for this event.

(Inherited from Element)
OnChildRemoved(Element, Int32)

Raises the ChildRemoved event. Implement this method to add class handling for this event

(Inherited from Element)
OnHandlerChanged()

When overridden in a derived class, should raise the HandlerChanged event.

(Inherited from Element)
OnHandlerChanging(HandlerChangingEventArgs)

When overridden in a derived class, should raise the HandlerChanging event.

(Inherited from Element)
OnParentChanged()

When overridden in a derived class, should raise the ParentChanged event.

(Inherited from Element)
OnParentChanging(ParentChangingEventArgs)

When overridden in a derived class, should raise the ParentChanging event.

(Inherited from Element)
OnParentSet()

Raises the (internal) ParentSet event. Implement this method in order to add behavior when the element is added to a parent.

(Inherited from Element)
OnPropertyChanged(String)

Method that is called when a bound property is changed.

(Inherited from Element)
OnPropertyChanging(String)

Raises the PropertyChanging event.

(Inherited from BindableObject)
RemoveBinding(BindableProperty)

Removes a previously set binding from a bindable property.

(Inherited from BindableObject)
RemoveDynamicResource(BindableProperty)

Removes a previously set dynamic resource.

(Inherited from Element)
RemoveLogicalChild(Element)

Removes the first occurrence of a specific Element from the logical children.

(Inherited from Element)
SetBinding(BindableProperty, BindingBase)

Assigns a binding to a bindable property.

(Inherited from BindableObject)
SetDynamicResource(BindableProperty, String)

Sets the BindableProperty property of this element to be updated via the DynamicResource with the provided key.

(Inherited from Element)
SetValue(BindableProperty, Object)

Sets the value of the specified bindable property.

(Inherited from BindableObject)
SetValue(BindablePropertyKey, Object)

Sets the value of the specified bindable property.

(Inherited from BindableObject)
SetValueFromRenderer(BindableProperty, Object)

For internal use by .NET MAUI.

(Inherited from Element)
SetValueFromRenderer(BindablePropertyKey, Object)

For internal use by .NET MAUI.

(Inherited from Element)
UnapplyBindings()

Removes all current bindings from the current context.

(Inherited from BindableObject)

Events

BindingContextChanged

Occurs when the value of the BindingContext property changes.

(Inherited from BindableObject)
ChildAdded

Raised whenever a child element is added to the element.

(Inherited from Element)
ChildRemoved

Raised whenever a child element is removed from the element.

(Inherited from Element)
DescendantAdded

Raised whenever a child element is added to the element's subtree.

(Inherited from Element)
DescendantRemoved

Raised whenever a child element is removed from the elements subtree.

(Inherited from Element)
DragStarting

Occurs when a drag gesture is detected.

DropCompleted

Occurs when a drop gesture is completed.

HandlerChanged

Raised whenever the element's handler has changed.

(Inherited from Element)
HandlerChanging

Raised whenever the element's handler starts to change.

(Inherited from Element)
ParentChanged

Raised whenever the element's parent has changed.

(Inherited from Element)
ParentChanging

Raised whenever the element's starts to change.

(Inherited from Element)
PropertyChanged

Occurs when a property value changes.

(Inherited from BindableObject)
PropertyChanging

Occurs when a property value is changing.

(Inherited from BindableObject)

Explicit Interface Implementations

IContextFlyoutElement.ContextFlyout

Gets the ContextFlyout for the view. Menu flyouts, menu flyout subitems, and menu flyout separators can be added to the context flyout.

(Inherited from Element)
IDynamicResourceHandler.SetDynamicResource(BindableProperty, String) (Inherited from BindableObject)
IEffectControlProvider.RegisterEffect(Effect)

Registers the specified effect to this element.

(Inherited from Element)
IElement.Parent

Gets the Parent of the Element.

(Inherited from Element)
IElementController.Descendants()

For internal use by .NET MAUI.

(Inherited from Element)
IElementController.LogicalChildren

For internal use by .NET MAUI.

(Inherited from Element)
IElementController.SetValueFromRenderer(BindableProperty, Object)

For internal use by .NET MAUI.

(Inherited from Element)
INameScope.RegisterName(String, Object)

For internal use by .NET MAUI.

(Inherited from Element)
INameScope.UnregisterName(String)

For internal use by .NET MAUI.

(Inherited from Element)
IToolTipElement.ToolTip

Represents a small rectangular pop-up window that displays a brief description of a view's purpose when the user rests the pointer on the view.

(Inherited from Element)
IVisualTreeElement.GetVisualChildren()

Gets a readonly list of the element's visual children.

(Inherited from Element)
IVisualTreeElement.GetVisualParent()

Gets the element's visual parent.

(Inherited from Element)

Extension Methods

GetPropertyIfSet<T>(BindableObject, BindableProperty, T)
SetAppTheme<T>(BindableObject, BindableProperty, T, T)
SetAppThemeColor(BindableObject, BindableProperty, Color, Color)
SetBinding(BindableObject, BindableProperty, String, BindingMode, IValueConverter, String)

Creates and applies a binding to a property.

SetBinding<TSource,TProperty>(BindableObject, BindableProperty, Func<TSource,TProperty>, BindingMode, IValueConverter, Object, String, Object, Object, Object)

Creates a binding between a property on the source object and a property on the target object.

FindByName<T>(Element, String)
ToHandler(IElement, IMauiContext)
ToPlatform(IElement, IMauiContext)
GetVisualElementWindow(IVisualTreeElement)

Gets the Window containing the Visual Tree Element, if the element is contained within one.

GetVisualTreeDescendants(IVisualTreeElement)

Gets the entire hierarchy of descendants as a list of children for a given Visual Tree Element.

GetVisualTreeElements(IVisualTreeElement, Point)

Gets list of a Visual Tree Element's children based off of a given Point.

GetVisualTreeElements(IVisualTreeElement, Rect)

Gets list of a Visual Tree Elements children based off of a rectangle.

GetVisualTreeElements(IVisualTreeElement, Double, Double, Double, Double)

Gets list of a Visual Tree Elements children based off of a rectangle defined by its coordinates which are specified in platform units, not pixels.

GetVisualTreeElements(IVisualTreeElement, Double, Double)

Gets list of a Visual Tree Elements children based off of a given x, y point.

Applies to