Source/Design/ComboBoxExDesigner.cs

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using System;
using System.Text;
using System.Windows.Forms.Design;
using DevComponents.DotNetBar.Controls;
using System.ComponentModel;
using System.Collections;
using System.Windows.Forms;
using System.ComponentModel.Design;
using DevComponents.Editors;

namespace DevComponents.DotNetBar.Design
{
    /// <summary>
    /// Represents Windows Forms designer for the ComboBoxEx control.
    /// </summary>
    public class ComboBoxExDesigner : ControlDesigner
    {
#if FRAMEWORK20
        public override void InitializeNewComponent(IDictionary defaultValues)
        {
            base.InitializeNewComponent(defaultValues);
            SetDesignTimeDefaults();
        }
#else
		public override void OnSetComponentDefaults()
		{
			base.OnSetComponentDefaults();
			SetDesignTimeDefaults();
		}
#endif

        public override void Initialize(IComponent component)
        {
            base.Initialize(component);
            if (component.Site!=null && !component.Site.DesignMode)
                return;

            // If our component is removed we need to clean-up
            IComponentChangeService cc = (IComponentChangeService)GetService(typeof(IComponentChangeService));
            if (cc != null)
            {
                cc.ComponentRemoving += new ComponentEventHandler(this.OnComponentRemoved);
            }
        }

        protected override void Dispose(bool disposing)
        {
            IComponentChangeService cc = (IComponentChangeService)GetService(typeof(IComponentChangeService));
            if (cc != null)
                cc.ComponentRemoved -= new ComponentEventHandler(this.OnComponentRemoved);

            base.Dispose(disposing);
        }

        private void SetDesignTimeDefaults()
        {
            ComboBoxEx c = this.Control as ComboBoxEx;
            c.DisplayMember = "Text";
            c.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;
            c.ItemHeight = c.GetFontHeight() + 1;