Class ObservableCollectionBase<T>

Base observable generic collection.

Inheritance

System.Object

ObservableCollectionBase<T>

CustomButtonCollection

ObservableCollection<U>

Namespace: Syncfusion.Windows.Forms.Tools.Navigation

Assembly: Syncfusion.Tools.Windows.dll

Syntax

public class ObservableCollectionBase<T> : Collection<T>

Type Parameters

Name	Description
T	Observable CollectionBase

Constructors

ObservableCollectionBase()

Declaration

public ObservableCollectionBase()

Methods

AddRange(IEnumerable<T>)

Adds the elements of the specified collection to the end of the .

Declaration

public virtual void AddRange(IEnumerable<T> collection)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<T>	collection	The collection whose elements should be added to the end of the . The collection itself cannot be null reference (Nothing in Visual Basic).

FireCollectionChangedEvent(CollectionChangeAction, T)

Fires CollectionChanged event.

Declaration

protected void FireCollectionChangedEvent(CollectionChangeAction action, T item)

Parameters

Type	Name	Description
System.ComponentModel.CollectionChangeAction	action	One of the System.ComponentModel.CollectionChangeActionvalues that specifies how the collection changed.
T	item	An that specifies the instance of the collection where the change occurred.

InsertItem(Int32, T)

Inserts an element into the System.Collections.ObjectModel.Collection at the specified index.

Declaration

protected override void InsertItem(int index, T item)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index at which item should be inserted.
T	item	The object to insert. The value can be null for reference types.

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	index is less than zero.-or-index is greater than System.Collections.ObjectModel.Collection.Count.

InsertRange(Int32, IEnumerable<T>)

Inserts the elements of a collection into the at the specified index.

Declaration

public virtual void InsertRange(int index, IEnumerable<T> collection)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index at which the new elements should be inserted.
System.Collections.Generic.IEnumerable<T>	collection	The collection whose elements should be inserted into the . The collection itself cannot be null null reference (Nothing in Visual Basic).

RemoveItem(Int32)

Removes the element at the specified index of the System.Collections.ObjectModel.Collection.

Declaration

protected override void RemoveItem(int index)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index of the element to remove.

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	index is less than zero.-or-index is equal to or greater than System.Collections.ObjectModel.Collection.Count.

SetItem(Int32, T)

Replaces the element at the specified index.

Declaration

protected override void SetItem(int index, T item)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index of the element to replace.
T	item	The new value for the element at the specified index. The value can be null for reference types.

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	index is less than zero.-or-index is greater than System.Collections.ObjectModel.Collection.Count.

Events

CollectionChanged

Occurs when collection is changed.

Declaration

public event CollectionChangeEventHandler CollectionChanged

Event Type

Type
System.ComponentModel.CollectionChangeEventHandler