SystemTrayMenu/UserInterface/CustomScrollbar/ScrollbarControlDesigner.cs

// <copyright file="ScrollbarControlDesigner.cs" company="PlaceholderCompany">
// Copyright (c) PlaceholderCompany. All rights reserved.
// </copyright>

namespace SystemTrayMenu.UserInterface
{
    using System.ComponentModel;
    using System.Windows.Forms.Design;

    internal class ScrollbarControlDesigner : ControlDesigner
    {
        public override SelectionRules SelectionRules
        {
            get
            {
                SelectionRules selectionRules = base.SelectionRules;
                PropertyDescriptor propDescriptor = TypeDescriptor.GetProperties(Component)["AutoSize"];
                if (propDescriptor != null)
                {
                    bool autoSize = (bool)propDescriptor.GetValue(Component);
                    if (autoSize)
                    {
                        selectionRules = SelectionRules.Visible | SelectionRules.Moveable | SelectionRules.BottomSizeable | SelectionRules.TopSizeable;
                    }
                    else
                    {
                        selectionRules = SelectionRules.Visible | SelectionRules.AllSizeable | SelectionRules.Moveable;
                    }
                }

                return selectionRules;
            }
        }
    }
}