Devexpress DropDownButton 用法

 public partial class XtraForm2 : DevExpress.XtraEditors.XtraForm
    {
        public XtraForm2()
        {
            InitializeComponent();
            CreateDropDownControl();
        }
        private void CreateDropDownControl()
        {
            DropDownButton btn = new DropDownButton();
            btn.Text = "Click here";
            btn.DropDownControl = CreateDXPopupMenu();
            btn.Location = new Point(100, 200);
            Controls.Add(btn);
        }
        private DXPopupMenu CreateDXPopupMenu()
        {
            DXPopupMenu menu = new DXPopupMenu();
            menu.Items.Add(new DXMenuItem("Item", OnItemClick));
            menu.Items.Add(new DXMenuCheckItem("CheckItem", false, null, OnItemClick));
            DXSubMenuItem subMenu = new DXSubMenuItem("SubMenu");
            subMenu.Items.Add(new DXMenuItem("SubItem", OnItemClick));
            menu.Items.Add(subMenu);
            return menu;
        }
        private void OnItemClick(object sender, EventArgs e)
        {
            DXMenuItem item = sender as DXMenuItem;
            XtraMessageBox.Show(item.Caption);
        }
    }

Devexpress DropDownButton 用法

原文：http://blog.csdn.net/zhishiheng/article/details/43275031