Class VirtualizationService

Simple data virtualization. Assuming containers are generated. Just hiding the items out of the viewport.

Inheritance
System.Object
GraphServiceBase
VirtualizationService
Inherited Members
Namespace: Telerik.Windows.Diagrams.Core
Assembly: Telerik.Windows.Diagrams.Core.dll

Syntax

public class VirtualizationService : GraphServiceBase, IVirtualizationService

Constructors

VirtualizationService(IGraphInternal)

Initializes a new instance of the VirtualizationService class.

Declaration
public VirtualizationService(IGraphInternal graph)
Parameters
IGraphInternal graph

The graph.

Properties

IsBlocked

When set to True, no virtualization or realization is done. When set to False, virtualization or serialization is processed normally.

Declaration
public bool IsBlocked { get; set; }
Property Value
System.Boolean

Implements

Methods

ForceRealization()

Forces the realization of all items.

Declaration
public void ForceRealization()
Implements
Remarks

When implementing a layout algorithm you need to call this method in order to take all the bounds into account.

IsInViewport(IDiagramItem)

Determines whether the item is in the viewport.

Declaration
public bool IsInViewport(IDiagramItem item)
Parameters
IDiagramItem item

The item.
Returns
System.Boolean

Implements

NotifyItemsChanged(NotifyCollectionChangedEventArgs)

Notifies items change.

Declaration
public void NotifyItemsChanged(NotifyCollectionChangedEventArgs e)
Parameters
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

The System.Collections.Specialized.NotifyCollectionChangedEventArgs instance containing the event data.
Implements

Realize(Rect)

Realizes the items contained in provided bounds and virtualizes the others.

Declaration
public virtual void Realize(Rect enclosingBounds)
Parameters
System.Windows.Rect enclosingBounds

Items inside will be realized.
Implements

Virtualize()

Virtualizes this instance.

Declaration
public void Virtualize()
Implements

Virtualize(IEnumerable<IDiagramItem>)

Virtualizes the specified items.

Declaration
public virtual void Virtualize(IEnumerable<IDiagramItem> items)
Parameters
System.Collections.Generic.IEnumerable<IDiagramItem> items

The items.
Implements

Extension Methods