Interface ISelectionService<T>

The service supporting the selection process of diagram items.

Namespace: Telerik.Windows.Diagrams.Core
Assembly: Telerik.Windows.Diagrams.Core.dll

Syntax

public interface ISelectionService<T>
Type Parameters
T

The type of Selection service.
Remarks

Note that this service can be customized and plugged into the ServiceLocator.

Properties

SelectedConnections

Gets the selected connections.

Declaration
IEnumerable<IConnection> SelectedConnections { get; }
Property Value
System.Collections.Generic.IEnumerable<IConnection>

The selected connections.

SelectedItems

Gets the selected items.

Declaration
IEnumerable<T> SelectedItems { get; }
Property Value
System.Collections.Generic.IEnumerable<T>

SelectedItemsCount

Gets the selected items count.

Declaration
int SelectedItemsCount { get; }
Property Value
System.Int32

SelectedShapes

Gets the currently selected diagram shapes.

Declaration
IEnumerable<IShape> SelectedShapes { get; }
Property Value
System.Collections.Generic.IEnumerable<IShape>

Methods

ClearSelection()

Clears the selection.

Declaration
void ClearSelection()

DeselectItem(T)

Deselects the item.

Declaration
void DeselectItem(T item)
Parameters
T item

The item.

DeselectItems(IEnumerable<T>)

Deselects the items.

Declaration
void DeselectItems(IEnumerable<T> items)
Parameters
System.Collections.Generic.IEnumerable<T> items

The items.

GetSelectionBounds(Boolean, Boolean)

Recalculates the selection bounding box.

Declaration
Rect GetSelectionBounds(bool isGraphVirtualized = false, bool actualBounds = false)
Parameters
System.Boolean isGraphVirtualized

System.Boolean actualBounds

Returns
System.Windows.Rect

IsSingleSelected(T)

Determines whether [is single selected] [the specified item].

Declaration
bool IsSingleSelected(T item)
Parameters
T item

The item.
Returns
System.Boolean

true if [is single selected] [the specified item]; otherwise, false.

SelectItem(T, Boolean)

Selects the item.

Declaration
void SelectItem(T item, bool addToExistingSelection = false)
Parameters
T item

The item.
System.Boolean addToExistingSelection

If set to true [add to existing selection].

SelectItems(IEnumerable<T>, Boolean)

Selects the items.

Declaration
void SelectItems(IEnumerable<T> items, bool addToExistingSelection = false)
Parameters
System.Collections.Generic.IEnumerable<T> items

The items.
System.Boolean addToExistingSelection

The add to existing selection flag.

SelectNextItem(IList<T>, Boolean)

Selects the next item in an ordered collection based on the current selected items.

Declaration
void SelectNextItem(IList<T> orderedItems, bool moveBackward)
Parameters
System.Collections.Generic.IList<T> orderedItems

System.Boolean moveBackward

SyncSelectedItems(T)

Syncs the selected items.

Declaration
bool SyncSelectedItems(T model)
Parameters
T model

The model.
Returns
System.Boolean

True if item is added or removed from selectedItems, otherwise false.

Events

PreviewSelectionChanged

Occurs when [selection starts].

Declaration
event EventHandler<DiagramSelectionChangedEventArgs> PreviewSelectionChanged
Event Type
System.EventHandler<DiagramSelectionChangedEventArgs>

SelectionChanged

Occurs when [selection ended].

Declaration
event EventHandler<DiagramSelectionChangedEventArgs> SelectionChanged
Event Type
System.EventHandler<DiagramSelectionChangedEventArgs>

Extension Methods