namespace System.Windows.Forms
{
    [DefaultEvent("SelectedIndexChanged")]
    [DefaultProperty("TabPages")]
    [Designer("System.Windows.Forms.Design.TabControlDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
    public class TabControl : Control
    {
        [DefaultMember("Item")]
        public class TabPageCollection : ICollection, IEnumerable, IList
        {
            public void Insert(int index, string? key, string? text, int imageIndex);
        }
    }
}