Class HierarchicalCollectionAdapter

This class wraps a hierarchical collection with observable collection, containing the flattened items, wrapped in HierarchicalItem. This collection doesn't track the source collection for changes.

Inheritance
System.Object
PropertyChangedBase
HierarchicalCollectionAdapter
SchedulingHierarchicalAdapter
Inherited Members
Namespace: Telerik.Windows.Core
Assembly: Telerik.Windows.Scheduling.Core.dll

Syntax

public class HierarchicalCollectionAdapter : PropertyChangedBase, IList<HierarchicalItem>, ICollection<HierarchicalItem>, IEnumerable<HierarchicalItem>, IEnumerable, IDisposable, IHierarchicalItemStateObserver, IHierarchicalCollectionAdapter<HierarchicalItem>, INotifyCollectionChanged, INotifyPropertyChanged, IEditableHierarchical

Constructors

HierarchicalCollectionAdapter(IEnumerable, Func<HierarchicalItem, Boolean>)

Initializes a new instance of the HierarchicalCollectionAdapter class. It doesn't track the source hierarchical collection for changes.

Declaration
public HierarchicalCollectionAdapter(IEnumerable hierarchicalItems, Func<HierarchicalItem, bool> shouldExpandedByDefault)
Parameters
System.Collections.IEnumerable hierarchicalItems

The hierarchical collection to be flattened.
System.Func<HierarchicalItem, System.Boolean> shouldExpandedByDefault

Properties

Count

Declaration
public int Count { get; }
Property Value
System.Int32

Implements

Item[Int32]

Declaration
public HierarchicalItem this[int index] { get; set; }
Parameters
System.Int32 index

Property Value
HierarchicalItem

Implements

Methods

CreateWrapper(HierarchicalItem, Object, Int32)

Declaration
protected virtual HierarchicalItem CreateWrapper(HierarchicalItem parent, object item, int sourceIndex)
Parameters
HierarchicalItem parent

System.Object item

System.Int32 sourceIndex

Returns
HierarchicalItem

Dispose()

Declaration
public void Dispose()

Dispose(Boolean)

Declaration
protected virtual void Dispose(bool disposing)
Parameters
System.Boolean disposing

Finalize()

Declaration
protected override void Finalize()

GetChildren(Object)

When overridden in the inherited class, this method returns all the children of the provided item.

Declaration
protected virtual IEnumerable GetChildren(object item)
Parameters
System.Object item

The item, which children are to be retrieved.
Returns
System.Collections.IEnumerable

All the children of the provided item.

GetItemWrapperByItemKey(Object)

Declaration
public HierarchicalItem GetItemWrapperByItemKey(object key)
Parameters
System.Object key

Returns
HierarchicalItem

Implements

InitializeWrapper(HierarchicalItem, Object)

When overridden in the inherited class, this method is used to perform additional initializations to the newly created wrapper. It is the best place to initialize the IsExpanded and CanExpand properties. This method is called when a new wrapper is initialized. In the base method only the SourceItem is set and an event handler is hooked to the PropertyChanged event to track changes in the IsExpanded property.

Declaration
protected virtual void InitializeWrapper(HierarchicalItem wrapper, object item)
Parameters
HierarchicalItem wrapper

The wrapper that was created for the item.
System.Object item

The item that have been wrapped.

OnCollectionChanged(NotifyCollectionChangedEventArgs)

Declaration
protected virtual void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
Parameters
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

OnItemPropertyChanged(ItemPropertyChangedEventArgs<HierarchicalItem>)

Declaration
protected virtual void OnItemPropertyChanged(ItemPropertyChangedEventArgs<HierarchicalItem> e)
Parameters
ItemPropertyChangedEventArgs<HierarchicalItem> e

ResetSource(IEnumerable)

Declaration
protected virtual void ResetSource(IEnumerable source)
Parameters
System.Collections.IEnumerable source

SelectKeyForItem(Object)

Declaration
protected virtual object SelectKeyForItem(object item)
Parameters
System.Object item

Returns
System.Object

ShouldExpandByDefault(HierarchicalItem)

Declaration
protected bool ShouldExpandByDefault(HierarchicalItem item)
Parameters
HierarchicalItem item

Returns
System.Boolean

TakeBetween(Int32, Int32)

Declaration
public IEnumerable<HierarchicalItem> TakeBetween(int startIndex, int endIndex)
Parameters
System.Int32 startIndex

System.Int32 endIndex

Returns
System.Collections.Generic.IEnumerable<HierarchicalItem>

Implements

Events

CollectionChanged

Occurs when the collection changes.

Declaration
public event NotifyCollectionChangedEventHandler CollectionChanged
Event Type
System.Collections.Specialized.NotifyCollectionChangedEventHandler

ItemPropertyChanged

Declaration
public event EventHandler<ItemPropertyChangedEventArgs<HierarchicalItem>> ItemPropertyChanged
Event Type
System.EventHandler<ItemPropertyChangedEventArgs<HierarchicalItem>>

Explicit Interface Implementations

IEditableHierarchical.InsertChildAtIndex(Object, Int32)

Declaration
void IEditableHierarchical.InsertChildAtIndex(object item, int index)
Parameters
System.Object item

System.Int32 index

Implements

IEditableHierarchical.Remove(Object)

Declaration
void IEditableHierarchical.Remove(object item)
Parameters
System.Object item

Implements

Extension Methods