Class RadDragAndDropManager

A manager class that enables drag drop operations between objects.

Inheritance

System.Object

RadDragAndDropManager

Namespace: Telerik.Windows.Controls.DragDrop

Assembly: Telerik.Windows.Controls.dll

Syntax

public static class RadDragAndDropManager : Object

Fields

AllowDragProperty

Identifies the AllowDrag attached property.

Declaration

public static readonly DependencyProperty AllowDragProperty

Field Value

System.Windows.DependencyProperty

AllowDropProperty

Identifies the AllowDrop attached property.

Declaration

public static readonly DependencyProperty AllowDropProperty

Field Value

System.Windows.DependencyProperty

AutoDragProperty

Identifies the AutoDrag attached property.

Declaration

public static readonly DependencyProperty AutoDragProperty

Field Value

System.Windows.DependencyProperty

DragArrowAdjustingEvent

Identifies the DragArrowAdjusting event.

Declaration

public static readonly RoutedEvent DragArrowAdjustingEvent

Field Value

System.Windows.RoutedEvent

DragInfoEvent

Identifies the DragInfo event.

Declaration

public static readonly RoutedEvent DragInfoEvent

Field Value

System.Windows.RoutedEvent

DragQueryEvent

Identifies the DragQuery event.

Declaration

public static readonly RoutedEvent DragQueryEvent

Field Value

System.Windows.RoutedEvent

DropInfoEvent

Identifies the DropInfo event.

Declaration

public static readonly RoutedEvent DropInfoEvent

Field Value

System.Windows.RoutedEvent

DropQueryEvent

Identifies the DragQuery event.

Declaration

public static readonly RoutedEvent DropQueryEvent

Field Value

System.Windows.RoutedEvent

Properties

ArrowVisibilityMinimumThreshold

Gets or sets the minimum length of the arrow that needs to be reached before it is shown.

Declaration

public static double ArrowVisibilityMinimumThreshold { get; set; }

Property Value

System.Double

AutoBringIntoView

Gets or sets a value indicating whether the ScrollViews should automatically scroll to bring content into view.

Declaration

public static bool AutoBringIntoView { get; set; }

Property Value

System.Boolean

DragCueOffset

Get or sets the relative horizontal and vertical offset of the drag cue. These values could be negative.

Declaration

public static Point DragCueOffset { get; set; }

Property Value

System.Windows.Point

DragStartThreshold

Gets or sets the distance in pixels that the user needs to drag an object before a real drag operation starts. This prevents incidental drag on mouse press.

Declaration

public static double DragStartThreshold { get; set; }

Property Value

System.Double

EnableNativeDrag

Enables RadDragAndDropManager to use the native drag/drop system capabilities.

Declaration

public static bool EnableNativeDrag { get; set; }

Property Value

System.Boolean

ExecutionMode

Gets or sets the execution mode of the drag operations.

Declaration

public static DragExecutionMode ExecutionMode { get; set; }

Property Value

DragExecutionMode The execution mode.

IsDragging

Gets a value indicating whether there is a dragging in process.

Declaration

public static bool IsDragging { get; }

Property Value

System.Boolean

Options

Gets the status of the current drag and drop process.

Declaration

public static DragDropOptions Options { get; }

Property Value

DragDropOptions

Methods

AddDragArrowAdjustingHandler(DependencyObject, EventHandler<DragArrowAdjustingEventArgs>)

Adds a handler to for the DragArrowAdjusting routed event.

Declaration

public static void AddDragArrowAdjustingHandler(DependencyObject target, EventHandler<DragArrowAdjustingEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to add handler to.

System.EventHandler<DragArrowAdjustingEventArgs> handler The handler for the event.

AddDragInfoHandler(DependencyObject, EventHandler<DragDropEventArgs>)

Adds a handler to for the DragInfo routed event.

Declaration

public static void AddDragInfoHandler(DependencyObject target, EventHandler<DragDropEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to add handler to.

System.EventHandler<DragDropEventArgs> handler The handler for the event.

AddDragQueryHandler(DependencyObject, EventHandler<DragDropQueryEventArgs>)

Adds a handler to for the DragQuery routed event.

Declaration

public static void AddDragQueryHandler(DependencyObject target, EventHandler<DragDropQueryEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to add handler to.

System.EventHandler<DragDropQueryEventArgs> handler The handler for the event.

AddDropInfoHandler(DependencyObject, EventHandler<DragDropEventArgs>)

Adds a handler to for the DropInfo routed event.

Declaration

public static void AddDropInfoHandler(DependencyObject target, EventHandler<DragDropEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to add handler to.

System.EventHandler<DragDropEventArgs> handler The handler for the event.

AddDropQueryHandler(DependencyObject, EventHandler<DragDropQueryEventArgs>)

Adds a handler to for the DropQuery routed event.

Declaration

public static void AddDropQueryHandler(DependencyObject target, EventHandler<DragDropQueryEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to add handler to.

System.EventHandler<DragDropQueryEventArgs> handler The handler for the event.

CancelDrag()

Cancels the current drag operation.

Declaration

public static void CancelDrag()

GenerateArrowCue()

Generates an arrow content control that can be used in as an arrow cue in the drag/drop operation.

Declaration

public static ContentControl GenerateArrowCue()

Returns

System.Windows.Controls.ContentControl A new drag arrow cue element.

GenerateVisualCue()

Creates a drag/drop visual cue based on the default settings of the Drag/Drop manager.

Declaration

public static DragVisualCue GenerateVisualCue()

Returns

DragVisualCue

GenerateVisualCue(FrameworkElement)

Creates a drag/drop visual cue based on the default settings of the Drag/Drop manager.

Declaration

public static DragVisualCue GenerateVisualCue(FrameworkElement source)

Parameters

System.Windows.FrameworkElement source If provided, the properties of the visual cue will be set to match this element.

Returns

DragVisualCue A new instance of the DragVisualCue class.

GetAllowDrag(DependencyObject)

Gets the AllowDrag attached property.

Declaration

public static bool GetAllowDrag(DependencyObject obj)

Parameters

System.Windows.DependencyObject obj The object to get the property for.

Returns

System.Boolean

GetAllowDrop(DependencyObject)

Gets the AllowDrop attached property.

Declaration

public static bool GetAllowDrop(DependencyObject obj)

Parameters

System.Windows.DependencyObject obj The object to get the property for.

Returns

System.Boolean

GetAutoDrag(DependencyObject)

Gets the AutoDrag attached property.

Declaration

public static bool GetAutoDrag(DependencyObject obj)

Parameters

System.Windows.DependencyObject obj The object to set the property to.

Returns

System.Boolean

Initialize()

Initialize the RadDragAndDropManager infrastructure.

Declaration

public static void Initialize()

RemoveDragArrowAdjustingHandler(DependencyObject, EventHandler<DragArrowAdjustingEventArgs>)

Removes a handler for the DragArrowAdjusting routed event.

Declaration

public static void RemoveDragArrowAdjustingHandler(DependencyObject target, EventHandler<DragArrowAdjustingEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to remove the handler from.

System.EventHandler<DragArrowAdjustingEventArgs> handler The handler for the event.

RemoveDragInfoHandler(DependencyObject, EventHandler<DragDropEventArgs>)

Removes a handler for the DragInfo routed event.

Declaration

public static void RemoveDragInfoHandler(DependencyObject target, EventHandler<DragDropEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to remove the handler from.

System.EventHandler<DragDropEventArgs> handler The handler for the event.

RemoveDragQueryHandler(DependencyObject, EventHandler<DragDropQueryEventArgs>)

Removes a handler for the DragQuery routed event.

Declaration

public static void RemoveDragQueryHandler(DependencyObject target, EventHandler<DragDropQueryEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to remove the handler from.

System.EventHandler<DragDropQueryEventArgs> handler The handler for the event.

RemoveDropInfoHandler(DependencyObject, EventHandler<DragDropEventArgs>)

Removes a handler for the DropInfo routed event.

Declaration

public static void RemoveDropInfoHandler(DependencyObject target, EventHandler<DragDropEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to remove the handler from.

System.EventHandler<DragDropEventArgs> handler The handler for the event.

RemoveDropQueryHandler(DependencyObject, EventHandler<DragDropQueryEventArgs>)

Removes a handler for the DropQuery routed event.

Declaration

public static void RemoveDropQueryHandler(DependencyObject target, EventHandler<DragDropQueryEventArgs> handler)

Parameters

System.Windows.DependencyObject target The element to remove the handler from.

System.EventHandler<DragDropQueryEventArgs> handler The handler for the event.

SetAllowDrag(DependencyObject, Boolean)

Sets the AllowDrag attached property.

Declaration

public static void SetAllowDrag(DependencyObject obj, bool value)

Parameters

System.Windows.DependencyObject obj The object to set the property to.

System.Boolean value The value of the property.

SetAllowDrop(DependencyObject, Boolean)

Sets the AllowDrop attached property.

Declaration

public static void SetAllowDrop(DependencyObject obj, bool value)

Parameters

System.Windows.DependencyObject obj The object to set the property to.

System.Boolean value The value of the property.

SetAutoDrag(DependencyObject, Boolean)

Sets the AutoDrag attached property.

Declaration

public static void SetAutoDrag(DependencyObject obj, bool value)

Parameters

System.Windows.DependencyObject obj The object to set the property to.

System.Boolean value The value of the property.

StartDrag(FrameworkElement, Object, Object)

Starts a drag operation. The DragSource parameter cannot be null.

Declaration

public static void StartDrag(FrameworkElement dragSource, object payload, object dragCue)

Parameters

System.Windows.FrameworkElement dragSource The element that is a source of the DragDrop.

System.Object payload The payload of the DragDrop. Can be null.

System.Object dragCue The drag cue of the DragDrop. Can be null.