System.Windows.Forms.TabControl.ControlCollection.Add C# (CSharp) Method

			public override void Add (Control value)
			{
				TabPage page = value as TabPage;
				if (page == null)
					throw new ArgumentException ("Cannot add " +
						value.GetType ().Name + " to TabControl. " +
						"Only TabPages can be directly added to TabControls.");

				page.SetVisible (false);
				base.Add (value);
				owner.m_helper.Add(page);
				if (owner.TabCount == 1 && owner.selected_index < 0)
					owner.SelectedIndex = 0;
				owner.Redraw ();
			}