Class ObservableCollectionBase<T>

Base observable generic collection.

Inheritance
System.Object
System.Collections.ObjectModel.Collection<T>
ObservableCollectionBase<T>
CustomButtonCollection
ObservableCollection<U>
Implements
System.Collections.Generic.IList<T>
System.Collections.Generic.ICollection<T>
System.Collections.IList
System.Collections.ICollection
System.Collections.Generic.IReadOnlyList<T>
System.Collections.Generic.IReadOnlyCollection<T>
System.Collections.Generic.IEnumerable<T>
System.Collections.IEnumerable
Inherited Members
System.Collections.ObjectModel.Collection<T>.Add(T)
System.Collections.ObjectModel.Collection<T>.Clear()
System.Collections.ObjectModel.Collection<T>.ClearItems()
System.Collections.ObjectModel.Collection<T>.Contains(T)
System.Collections.ObjectModel.Collection<T>.CopyTo(T[], System.Int32)
System.Collections.ObjectModel.Collection<T>.Count
System.Collections.ObjectModel.Collection<T>.GetEnumerator()
System.Collections.ObjectModel.Collection<T>.IndexOf(T)
System.Collections.ObjectModel.Collection<T>.Insert(System.Int32, T)
System.Collections.ObjectModel.Collection<T>.Item[System.Int32]
System.Collections.ObjectModel.Collection<T>.Items
System.Collections.ObjectModel.Collection<T>.Remove(T)
System.Collections.ObjectModel.Collection<T>.RemoveAt(System.Int32)
System.Collections.ObjectModel.Collection<T>.System.Collections.Generic.ICollection<T>.IsReadOnly
System.Collections.ObjectModel.Collection<T>.System.Collections.ICollection.CopyTo(System.Array, System.Int32)
System.Collections.ObjectModel.Collection<T>.System.Collections.ICollection.IsSynchronized
System.Collections.ObjectModel.Collection<T>.System.Collections.ICollection.SyncRoot
System.Collections.ObjectModel.Collection<T>.System.Collections.IEnumerable.GetEnumerator()
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.Add(System.Object)
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.Contains(System.Object)
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.get_Item(System.Int32)
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.IndexOf(System.Object)
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.Insert(System.Int32, System.Object)
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.IsFixedSize
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.IsReadOnly
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.Item[System.Int32]
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.Remove(System.Object)
System.Collections.ObjectModel.Collection<T>.System.Collections.IList.set_Item(System.Int32, System.Object)
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Syncfusion.Windows.Forms.Tools.Navigation
Assembly: Syncfusion.Tools.Windows.dll
Syntax
public class ObservableCollectionBase<T> : Collection<T>, IList<T>, ICollection<T>, IList, ICollection, IReadOnlyList<T>, IReadOnlyCollection<T>, IEnumerable<T>, IEnumerable
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.
Overrides
System.Collections.ObjectModel.Collection<T>.InsertItem(System.Int32, T)
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.
Overrides
System.Collections.ObjectModel.Collection<T>.RemoveItem(System.Int32)
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.
Overrides
System.Collections.ObjectModel.Collection<T>.SetItem(System.Int32, T)
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

Implements

System.Collections.Generic.IList<T>
System.Collections.Generic.ICollection<T>
System.Collections.IList
System.Collections.ICollection
System.Collections.Generic.IReadOnlyList<T>
System.Collections.Generic.IReadOnlyCollection<T>
System.Collections.Generic.IEnumerable<T>
System.Collections.IEnumerable

Extension Methods