Class BaseCollection<T>

Namespace: Alternet.UI

Assembly: Alternet.UI.Common.dll

Represents a dynamic data collection that provides notifications when items get added, removed, or when the whole list is refreshed. In addition to the functionality available in ObservableCollection<T>, provides ItemInserted and ItemRemoved events.

public class BaseCollection<T> : BaseObservableCollection<T>, IList<T>, ICollection<T>, IReadOnlyList<T>, IReadOnlyCollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable, INotifyCollectionChanged, INotifyPropertyChanged

Type Parameters

T: The type of elements in the collection.

Inheritance: object

Collection<T>

BaseObservableCollection<T>

BaseCollection<T>

Implements: IList<T>

ICollection<T>

IReadOnlyList<T>

IReadOnlyCollection<T>

IEnumerable<T>

IList

ICollection

IEnumerable

INotifyCollectionChanged

INotifyPropertyChanged

Derived: AbstractControl.ControlCollection

NotNullCollection<T>

Constructors

BaseCollection(): Initializes a new instance of the BaseCollection<T> class.

BaseCollection(List<T>): Initializes a new instance of the collection as a wrapper for the specified list.

Properties

AsList: Returns collection as IList. This is for compatibility.

First: Gets the first item in the collection or 'default'.

this[int]: Gets or sets the element at the specified index.

this[long]: Gets or sets the element at the specified index.

this[int?]: Gets or sets the element at the specified index.

Last: Gets the last item in the collection or 'default'.

RangeOpInProgress: Returns true if AddRange(IEnumerable<T>?) is being executed at the moment.

ThrowOnNullAdd: Gets or sets a value indicating whether an ArgumentNullException should be thrown on an attempt to add a null value to the collection.

Methods

AddRange(IEnumerable<T>?): Adds the elements of the specified IEnumerable<T> to the end of the collection.

ClearItems(): Removes all items from the collection.

GetItemIndex(T, bool): Retrieves the index of the specified item within the collection, and optionally raises an exception if the specified item is not within the collection.

IndexOfOrNull(T): Searches for the specified object and returns the zero-based index of the first occurrence within the entire collection.

InsertItem(int, T): Inserts an item into the collection at the specified index.

Move(int, int): Moves the item at the specified index to a new location in the collection.

OnItemInserted(int, T): Raises the ItemInserted event with the provided arguments.

OnItemRangeAdditionFinished(int, IEnumerable<T>): Raises the ItemRangeAdditionFinished event with the provided arguments.

OnItemRemoved(int, T): Raises the ItemRemoved event with the provided arguments.

Prepend(T): Same as adding of the item, but prepends the items to the beginning of the list of items owned by this collection.

RemoveFirst(): Removes the first item from the collection.

RemoveItem(int): Removes the item at the specified index of the collection.

RemoveLast(): Removes the last item from the collection.

SetCount(int, Func<T>): Changes the number of elements in the collection.

SetItemIndex(T, int): Sets the index of the specified item in the collection.

Events

ItemInserted: Occurs when an item is inserted in the collection.

ItemRangeAdditionFinished: Occurs when an item range addition is finished in the collection.

ItemRemoved: Occurs when an item is removed from the collection.

PropertyChanged: Occurs when a property value changes.