Class TrackingHashSet<T>

Namespace

Stride.Core.Collections

Assembly

Stride.Core.dll

Represents a hash set that generates events when items get added or removed.

public class TrackingHashSet<T> : ISet<T>, ICollection<T>, IReadOnlySet<T>, IReadOnlyCollection<T>, IEnumerable<T>, IEnumerable, ITrackingCollectionChanged

Type Parameters

T

The type of elements in the hash set.

Inheritance

object

TrackingHashSet<T>

Implements

ISet<T>

ICollection<T>

IReadOnlySet<T>

IReadOnlyCollection<T>

IEnumerable<T>

IEnumerable

ITrackingCollectionChanged

Extension Methods

ArrayExtensions.ComputeHash<T>(ICollection<T>, IEqualityComparer<T>?)

EnumerableExtensions.ForEach<T>(IEnumerable<T>, Action<T>)

EnumerableExtensions.IndexOf<T>(IEnumerable<T>, Func<T, bool>)

EnumerableExtensions.LastIndexOf<T>(IEnumerable<T>, Func<T, bool>)

EnumerableExtensions.ForEach<T>(IEnumerable, Action<T>)

EnumerableExtensions.IsNullOrEmpty(IEnumerable)

Remarks

Underlying storage is done with a HashSet<T>.

Properties

Count

Gets the number of elements contained in the ICollection<T>.

public int Count { get; }

Property Value

int

The number of elements contained in the ICollection<T>.

IsReadOnly

Gets a value indicating whether the ICollection<T> is read-only.

public bool IsReadOnly { get; }

Property Value

bool

true if the ICollection<T> is read-only; otherwise, false.

Methods

Add(T)

Adds an element to the current set and returns a value to indicate if the element was successfully added.

public bool Add(T item)

Parameters

item T

The element to add to the set.

Returns

bool

true if the element is added to the set; false if the element is already in the set.

Clear()

Removes all items from the ICollection<T>.

public void Clear()

Exceptions

NotSupportedException

The ICollection<T> is read-only.

Contains(T)

Determines whether the ICollection<T> contains a specific value.

public bool Contains(T item)

Parameters

item T

The object to locate in the ICollection<T>.

Returns

bool

true if item is found in the ICollection<T>; otherwise, false.

CopyTo(T[], int)

Copies the elements of the ICollection<T> to an Array, starting at a particular Array index.

public void CopyTo(T[] array, int arrayIndex)

Parameters

array T[]

The one-dimensional Array that is the destination of the elements copied from ICollection<T>. The Array must have zero-based indexing.

arrayIndex int

The zero-based index in array at which copying begins.

Exceptions

ArgumentNullException

array is null.

ArgumentOutOfRangeException

arrayIndex is less than 0.

ArgumentException

The number of elements in the source ICollection<T> is greater than the available space from arrayIndex to the end of the destination array.

ExceptWith(IEnumerable<T>)

Removes all elements in the specified collection from the current set.

public void ExceptWith(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection of items to remove from the set.

Exceptions

ArgumentNullException

other is null.

GetEnumerator()

public HashSet<T>.Enumerator GetEnumerator()

Returns

HashSet<T>.Enumerator

IntersectWith(IEnumerable<T>)

Modifies the current set so that it contains only elements that are also in a specified collection.

public void IntersectWith(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Exceptions

ArgumentNullException

other is null.

IsProperSubsetOf(IEnumerable<T>)

Determines whether the current set is a proper (strict) subset of a specified collection.

public bool IsProperSubsetOf(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Returns

bool

true if the current set is a proper subset of other; otherwise, false.

Exceptions

ArgumentNullException

other is null.

IsProperSupersetOf(IEnumerable<T>)

Determines whether the current set is a proper (strict) superset of a specified collection.

public bool IsProperSupersetOf(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Returns

bool

true if the current set is a proper superset of other; otherwise, false.

Exceptions

ArgumentNullException

other is null.

IsSubsetOf(IEnumerable<T>)

Determines whether a set is a subset of a specified collection.

public bool IsSubsetOf(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Returns

bool

true if the current set is a subset of other; otherwise, false.

Exceptions

ArgumentNullException

other is null.

IsSupersetOf(IEnumerable<T>)

Determines whether the current set is a superset of a specified collection.

public bool IsSupersetOf(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Returns

bool

true if the current set is a superset of other; otherwise, false.

Exceptions

ArgumentNullException

other is null.

Overlaps(IEnumerable<T>)

Determines whether the current set overlaps with the specified collection.

public bool Overlaps(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Returns

bool

true if the current set and other share at least one common element; otherwise, false.

Exceptions

ArgumentNullException

other is null.

Remove(T)

Removes the first occurrence of a specific object from the ICollection<T>.

public bool Remove(T item)

Parameters

item T

The object to remove from the ICollection<T>.

Returns

bool

true if item was successfully removed from the ICollection<T>; otherwise, false. This method also returns false if item is not found in the original ICollection<T>.

Exceptions

NotSupportedException

The ICollection<T> is read-only.

SetEquals(IEnumerable<T>)

Determines whether the current set and the specified collection contain the same elements.

public bool SetEquals(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Returns

bool

true if the current set is equal to other; otherwise, false.

Exceptions

ArgumentNullException

other is null.

SymmetricExceptWith(IEnumerable<T>)

Modifies the current set so that it contains only elements that are present either in the current set or in the specified collection, but not both.

public void SymmetricExceptWith(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Exceptions

ArgumentNullException

other is null.

UnionWith(IEnumerable<T>)

Modifies the current set so that it contains all elements that are present in the current set, in the specified collection, or in both.

public void UnionWith(IEnumerable<T> other)

Parameters

other IEnumerable<T>

The collection to compare to the current set.

Exceptions

ArgumentNullException

other is null.

Events

CollectionChanged

Occurs when [collection changed].

public event EventHandler<TrackingCollectionChangedEventArgs> CollectionChanged

Event Type

EventHandler<TrackingCollectionChangedEventArgs>