Class SchedulingDragDropBehavior

The base class for drag-drop operation behaviors for the scheduling controls.

Inheritance
System.Object
PlatformIndependentFreezable
SchedulingBehaviorBase
SchedulingDragDropBehavior
GanttDragDropBehavior
Inherited Members
Namespace: Telerik.Windows.Controls.Scheduling
Assembly: Telerik.Windows.Scheduling.Core.dll

Syntax

public class SchedulingDragDropBehavior : SchedulingBehaviorBase, ISchedulingDragDropBehavior

Constructors

SchedulingDragDropBehavior()

Declaration
public SchedulingDragDropBehavior()

Methods

CanDrop(SchedulingDragDropState)

Gets the value specifying whether the drag operation can be completed, or not.

Declaration
protected virtual bool CanDrop(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

DragDropState identifying the current drag operation.
Returns
System.Boolean

True when the drag operation can be finished, otherwise false.
Remarks

This method is called on every mouse move. All properties in the DragDropState are valid.

CanStartDrag(SchedulingDragDropState)

Gets the value specifying whether the drag operation can be started, or not.

Declaration
protected virtual bool CanStartDrag(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

DragDropState that provides context for the current operation.
Returns
System.Boolean

True when the drag operation can be started, otherwise false.
Remarks

This method is called only when the drag operation initiated.

CreateInstanceOverride()

Creates a new instance of the SchedulingDragDropBehavior class.

Declaration
protected override PlatformIndependentFreezable CreateInstanceOverride()
Returns
PlatformIndependentFreezable

The new SchedulingDragDropBehavior instance.
Overrides

Drop(SchedulingDragDropState)

When overridden in a derived class completes the drop operation. This method is called only in the context of the drop target control.

Declaration
protected virtual void Drop(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

DragDropState that provides context for the current operation.
Remarks

When the drag source and the drop target are the same control, this method is called before DragCompleted.

GetReorderDropPosition(Double)

Gets the drop position for the reorder based on the overlapping value.

Declaration
protected virtual DropRelativePosition GetReorderDropPosition(double overlappingValue)
Parameters
System.Double overlappingValue

This value indicates how much the dragged item is over the destination item. This value is between 0 and 1.
Returns
DropRelativePosition

Returns DropRelativePosition enum value.

Explicit Interface Implementations

ISchedulingDragDropBehavior.CanDrop(SchedulingDragDropState)

Declaration
bool ISchedulingDragDropBehavior.CanDrop(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

Returns
System.Boolean

Implements

ISchedulingDragDropBehavior.CanStartDrag(SchedulingDragDropState)

Declaration
bool ISchedulingDragDropBehavior.CanStartDrag(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

Returns
System.Boolean

Implements

ISchedulingDragDropBehavior.CoerceDraggedItems(SchedulingDragDropState)

Declaration
IEnumerable ISchedulingDragDropBehavior.CoerceDraggedItems(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

Returns
System.Collections.IEnumerable

Implements

ISchedulingDragDropBehavior.DragDropCanceled(SchedulingDragDropState)

When overridden in a derived class cleans up a cancelled drag operation. This method is called only in the context of the drag source control.

Declaration
void ISchedulingDragDropBehavior.DragDropCanceled(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

DragDropState that provides context for the current operation.
Implements
Remarks

This method is called only when the drag operation is cancelled by the user. If this method is called, the source's DragDropCompleted and target's Drop methods are not called.

ISchedulingDragDropBehavior.DragDropCompleted(SchedulingDragDropState, DragDropEffects)

When overridden in a derived class completes the drag operation. This method is called only in the context of the drag source control.

Declaration
void ISchedulingDragDropBehavior.DragDropCompleted(SchedulingDragDropState state, DragDropEffects dragDropEffects)
Parameters
SchedulingDragDropState state

DragDropState that provides context for the current operation.
System.Windows.DragDropEffects dragDropEffects

DragDropEffects with which the drag operation have finished.
Implements
Remarks

When the drag source and the drop target are the same control, this method is called after Drop. This method is called only when the drag operation completed successfully. If this method is called, DragDropCanceled is not called.

ISchedulingDragDropBehavior.Drop(SchedulingDragDropState)

Declaration
void ISchedulingDragDropBehavior.Drop(SchedulingDragDropState state)
Parameters
SchedulingDragDropState state

Implements

ISchedulingDragDropBehavior.GetReorderDropPosition(Double)

Declaration
DropRelativePosition ISchedulingDragDropBehavior.GetReorderDropPosition(double overlappingValue)
Parameters
System.Double overlappingValue

Returns
DropRelativePosition

Implements

Extension Methods