ArrayList Class

Constructors

• ArrayList()

  public ArrayList()

  Initializes a new instance of the ArrayList class that is empty and has the initial capacity of zero or the default capacity if that is greater.

• ArrayList(int capacity)

  public ArrayList(int capacity)

  Initializes a new instance of the ArrayList class that is empty and has the specified initial capacity or the default capacity if that is greater.

  Parameters:
  capacity — The number of elements that the new ArrayList can initially store.

• ArrayList(IList c)

  public ArrayList(IList c)

  Initializes a new instance of the ArrayList class that contains elements copied from the specified collection and has enough capacity to accommodate the number of elements copied.

  Parameters:
  c — The collection whose elements are copied to the new ArrayList.

Properties

• Capacity

  public virtual int Capacity { get; set; }

  Gets or sets the number of elements that the ArrayList can hold.

  Inherited from: ArrayList

• Count

  public virtual int Count { get; }

  Gets the number of elements contained in the ArrayList.

  Inherited from: ArrayList

• IsFixedSize

  public virtual bool IsFixedSize { get; }

  Gets a value indicating whether the ArrayList has a fixed size.

  Inherited from: IList

• IsReadOnly

  public virtual bool IsReadOnly { get; }

  Gets a value indicating whether the ArrayList is read-only.

  Inherited from: IList

• IsSynchronized

  public virtual bool IsSynchronized { get; }

  Gets a value indicating whether access to the ArrayList is synchronized (thread-safe).

  Inherited from: ArrayList

• Item[int index]

  public virtual object Item[int index] { get; set; }

  Gets or sets the element at the specified index.

  Parameters:
  index — The zero-based index of the element to get or set.
  Inherited from: IList

• SyncRoot

  public virtual object SyncRoot { get; }

  Gets an object that can be used to synchronize access to the ArrayList.

  Inherited from: ArrayList

Methods

• Add(object value)

  public virtual int Add(object value)

  Adds an object to the end of the ArrayList.

  Parameters:
  value — The object to be added to the end of the ArrayList.
  Returns: The position into which the new element is inserted.
  Inherited from: IList

• AddRange(ICollection c)

  public virtual void AddRange(ICollection c)

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

  Parameters:
  c — The collection whose elements are to be added to the end of the ArrayList.
  Inherited from: ArrayList

• Clear()

  public virtual void Clear()

  Removes all elements from the ArrayList.

  Inherited from: ArrayList

• Clone()

  public virtual object Clone()

  Creates a shallow copy of the ArrayList.

  Returns: A shallow copy of the ArrayList.
  Inherited from: ArrayList

• Contains(object value)

  public virtual bool Contains(object value)

  Determines whether an element is in the ArrayList.

  Parameters:
  value — The object to locate in the ArrayList.
  Returns: true if the object is found in the ArrayList; otherwise, false.
  Inherited from: ArrayList

• CopyTo(Array array)

  public virtual void CopyTo(Array array)

  Copies the entire ArrayList to a one-dimensional Array, starting at the beginning of the target array.

  Parameters:
  array — The one-dimensional Array that is the destination of the elements copied from ArrayList.
  Inherited from: ArrayList

• GetEnumerator()

  public virtual IEnumerator GetEnumerator()

  Returns an enumerator that iterates through the ArrayList.

  Returns: An IEnumerator for the ArrayList.
  Inherited from: ArrayList

• IndexOf(object value)

  public virtual int IndexOf(object value)

  Searches for the specified object and returns the zero-based index of the first occurrence within the entire ArrayList.

  Parameters:
  value — The object to search for.
  Returns: The zero-based index of the first occurrence of value within the entire ArrayList, or -1 if there is no such element.
  Inherited from: ArrayList

• Insert(int index, object value)

  public virtual void Insert(int index, object value)

  Inserts an element into the ArrayList at the specified index.

  Parameters:
  index — The zero-based index at which value should be inserted.
  value — The object to insert into the ArrayList.
  Inherited from: IList

• Remove(object value)

  public virtual void Remove(object value)

  Removes the first occurrence of the specified object from the ArrayList.

  Parameters:
  value — The object to remove from the ArrayList.
  Inherited from: ArrayList

• RemoveAt(int index)

  public virtual void RemoveAt(int index)

  Removes the element at the specified index of the ArrayList.

  Parameters:
  index — The zero-based index of the element to remove.
  Inherited from: IList

• Reverse()

  public virtual void Reverse()

  Reverses the order of the elements in the entire ArrayList.

  Inherited from: ArrayList

• Sort()

  public virtual void Sort()

  Sorts the elements in the entire ArrayList.

  Inherited from: ArrayList

• ToArray()

  public virtual object[] ToArray()

  Copies the elements of the ArrayList to a new object array.

  Returns: A new object array containing the elements of the ArrayList.
  Inherited from: ArrayList

• TrimToSize()

  public virtual void TrimToSize()

  Adjusts the capacity of an ArrayList so that the capacity is equal to the number of elements in the ArrayList.

  Inherited from: ArrayList