EnumerableChangedHandlerTItem, TCollection Class

Helper class to handle collection change events of an IEnumerable

Inheritance Hierarchy

SystemObject
  EtoCollectionChangedHandlerTItem, TCollection
    EtoEnumerableChangedHandlerTItem, TCollection
      EtoEnumerableChangedHandlerTItem

Namespace: Eto
Assembly: Eto (in Eto.dll) Version: 2.5.3-dev

Syntax

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public abstract class EnumerableChangedHandler<TItem, TCollection> : CollectionChangedHandler<TItem, TCollection>
where TCollection : class, Object, IEnumerable<TItem>

Public MustInherit Class EnumerableChangedHandler(Of TItem, TCollection As {Class, Object, IEnumerable(Of TItem)})
	Inherits CollectionChangedHandler(Of TItem, TCollection)

[<AbstractClassAttribute>]
type EnumerableChangedHandler<'TItem, 'TCollection when 'TCollection : not struct and Object and IEnumerable<'TItem>> =  
    class
        inherit CollectionChangedHandler<'TItem, 'TCollection>
    end

Type Parameters

TItem: Type of each item in the enumerable
TCollection: Type of the collection to handle the change events for

The EnumerableChangedHandlerTItem, TCollection type exposes the following members.

Constructors

	Name	Description
	EnumerableChangedHandlerTItem, TCollection	Initializes a new instance of the EnumerableChangedHandlerTItem, TCollection class

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Properties

	Name	Description
	Count	Gets the count of the items in the current registered collection. (Overrides CollectionChangedHandlerTItem, TCollectionCount.)

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Methods

	Name	Description
	InitializeCollection	Initializes the collection, usually by adding the collection to the underlying handler.
	InternalElementAt	Gets the element at the specified index. (Overrides CollectionChangedHandlerTItem, TCollectionInternalElementAt(Int32).)
	InternalIndexOf	Implements the mechanism for finding the index of an item (the slow way) (Overrides CollectionChangedHandlerTItem, TCollectionInternalIndexOf(TItem).)
	OnRegisterCollection	Called when the collection is registered (Overrides CollectionChangedHandlerTItem, TCollectionOnRegisterCollection(EventArgs).)

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Remarks

This is used for the platform handler of controls that use collections. This class helps detect changes to a collection so that the appropriate action can be taken to update the UI with the changes. Use this class as a base when you only have an IEnumerable. If the object also implements INotifyCollectionChanged it will get changed events otherwise you must register a new collection each time.

Reference

Eto Namespace

EnumerableChangedHandlerAddLanguageSpecificTextSet("LSTB490AE6E_0?cs=&lt;|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");TItem, TCollectionAddLanguageSpecificTextSet("LSTB490AE6E_1?cs=&gt;|vb=)|cpp=&gt;|fs=&gt;|nu=)"); Class

Type Parameters

Reference

EnumerableChangedHandlerTItem, TCollection Class