// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Collections;
using System.ComponentModel;
 
namespace System.Windows.Forms;
 
/// <summary>
///  Provides the base functionality for creating collections.
/// </summary>
public class BaseCollection : MarshalByRefObject, ICollection
{
    /// <summary>
    ///  Gets the total number of elements in a collection.
    /// </summary>
    [Browsable(false)]
    [EditorBrowsable(EditorBrowsableState.Advanced)]
    public virtual int Count => List!.Count;
 
    public void CopyTo(Array ar, int index) => List!.CopyTo(ar, index);
 
    /// <summary>
    ///  Gets an IEnumerator for the collection.
    /// </summary>
    public IEnumerator GetEnumerator() => List!.GetEnumerator();
 
    [Browsable(false)]
    [EditorBrowsable(EditorBrowsableState.Advanced)]
    public bool IsReadOnly => false;
 
    [Browsable(false)]
    [EditorBrowsable(EditorBrowsableState.Advanced)]
    public bool IsSynchronized => false;
 
    [Browsable(false)]
    [EditorBrowsable(EditorBrowsableState.Advanced)]
    public object SyncRoot => this;
 
    protected virtual ArrayList? List => null;
}