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diff --git a/source/ShiftUI/Widgets/CheckedListBox.cs b/source/ShiftUI/Widgets/CheckedListBox.cs
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+++ b/source/ShiftUI/Widgets/CheckedListBox.cs
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+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Copyright (c) 2004-2006 Novell, Inc.
+//
+// Authors:
+//	Jordi Mas i Hernandez, [email protected]
+//	Mike Kestner  <[email protected]>
+//
+//
+
+using System;
+using System.Drawing;
+using System.Collections;
+using System.ComponentModel;
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+namespace ShiftUI
+{
+	[ClassInterface (ClassInterfaceType.AutoDispatch)]
+	[ComVisible (true)]
+	[LookupBindingPropertiesAttribute ()]
+    [ToolboxWidget]
+    public class CheckedListBox : ListBox
+	{
+		private CheckedIndexCollection checked_indices;
+		private CheckedItemCollection checked_items;
+		private Hashtable check_states = new Hashtable ();
+		private bool check_onclick = false;
+		private bool three_dcheckboxes = false;
+		
+		public CheckedListBox ()
+		{
+			checked_indices = new CheckedIndexCollection (this);
+			checked_items = new CheckedItemCollection (this);
+			SetStyle (Widgetstyles.ResizeRedraw, true);
+		}
+
+		#region events
+		static object ItemCheckEvent = new object ();
+
+		[Browsable (true)]
+		//[EditorBrowsable (EditorBrowsableState.Always)]
+		public new event EventHandler Click {
+			add { base.Click += value; }
+			remove { base.Click -= value; }
+		}
+		
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event EventHandler DataSourceChanged {
+			add { base.DataSourceChanged += value; }
+			remove { base.DataSourceChanged -= value; }
+		}
+		
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event EventHandler DisplayMemberChanged {
+			add { base.DisplayMemberChanged += value; }
+			remove { base.DisplayMemberChanged -= value; }
+		}
+		
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event DrawItemEventHandler DrawItem {
+			add { base.DrawItem += value; }
+			remove { base.DrawItem -= value; }
+		}
+
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event MeasureItemEventHandler MeasureItem {
+			add { base.MeasureItem += value; }
+			remove { base.MeasureItem -= value; }
+		}
+		
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event EventHandler ValueMemberChanged {
+			add { base.ValueMemberChanged += value; }
+			remove { base.ValueMemberChanged -= value; }
+		}
+
+		public event ItemCheckEventHandler ItemCheck {
+			add { Events.AddHandler (ItemCheckEvent, value); }
+			remove { Events.RemoveHandler (ItemCheckEvent, value); }
+		}
+		
+		[Browsable (true)]
+		//[EditorBrowsable (EditorBrowsableState.Always)]
+		public new event MouseEventHandler MouseClick {
+			add { base.MouseClick += value; }
+			remove { base.MouseClick -= value; }
+		}
+		#endregion Events
+
+		#region Public Properties
+		
+		[Browsable (false)]
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+		public CheckedListBox.CheckedIndexCollection CheckedIndices {
+			get {return checked_indices; }
+		}
+				
+		[Browsable (false)]
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+		public CheckedListBox.CheckedItemCollection CheckedItems {
+			get {return checked_items; }
+		}
+
+		[DefaultValue (false)]
+		public bool CheckOnClick {
+			get { return check_onclick; }
+			set { check_onclick = value; }
+		}
+
+		protected override CreateParams CreateParams {
+			get { return base.CreateParams;}
+		}
+		
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		[Browsable (false)]
+		public new object DataSource {
+			get { return base.DataSource; }
+			// FIXME: docs say you can't use a DataSource with this subclass
+			set { base.DataSource = value; }
+		}
+
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		[Browsable (false)]
+		public new string DisplayMember {
+			get { return base.DisplayMember; }
+			set { base.DisplayMember = value; }
+		}
+
+		[Browsable (false)]
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public override DrawMode DrawMode {
+			get { return DrawMode.Normal; }
+			set { /* Not an exception, but has no effect. */ }
+		}
+
+		[Browsable (false)]
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public override int ItemHeight {
+			get { return base.ItemHeight; }
+			set { /* Not an exception, but has no effect. */ }
+		}
+
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
+		[Localizable (true)]
+		//[Editor ("ShiftUI.Design.ListWidgetstringCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
+		public new CheckedListBox.ObjectCollection Items {
+			get { return (CheckedListBox.ObjectCollection) base.Items; }
+		}
+
+		public override SelectionMode SelectionMode {
+			get { return base.SelectionMode; }
+			set {
+				if (!Enum.IsDefined (typeof (SelectionMode), value))
+					throw new InvalidEnumArgumentException ("value", (int) value, typeof (SelectionMode));
+
+				if (value == SelectionMode.MultiSimple || value == SelectionMode.MultiExtended)
+					throw new ArgumentException ("Multi selection not supported on CheckedListBox");
+
+				base.SelectionMode = value;
+			}
+		}
+
+		[DefaultValue (false)]
+		public bool ThreeDCheckBoxes {
+			get { return three_dcheckboxes; }
+			set {
+				if (three_dcheckboxes == value)
+					return;
+
+				three_dcheckboxes = value;
+				Refresh ();
+			}
+		}
+
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new string ValueMember {
+			get { return base.ValueMember; }
+			set { base.ValueMember = value; }			
+		}
+		
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		//[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+		public new Padding Padding {
+			get { return base.Padding; }
+			set { base.Padding = value; }
+		}
+		#endregion Public Properties
+
+		#region Public Methods
+
+		protected override AccessibleObject CreateAccessibilityInstance ()
+		{
+			return base.CreateAccessibilityInstance ();
+		}
+		
+		protected override ListBox.ObjectCollection CreateItemCollection ()
+		{
+			return new ObjectCollection (this);
+		}
+
+		public bool GetItemChecked (int index)
+		{
+			return check_states.Contains (Items [index]);
+		}
+		
+		public CheckState GetItemCheckState (int index)
+		{
+			if (index < 0 || index >= Items.Count)
+				throw new ArgumentOutOfRangeException ("Index of out range");
+
+			object o = Items [index];
+			if (check_states.Contains (o))
+				return (CheckState) check_states [o];
+			else
+				return CheckState.Unchecked;
+		}
+
+		protected override void OnBackColorChanged (EventArgs e)
+		{
+			base.OnBackColorChanged (e);
+		}
+
+		protected override void OnClick (EventArgs e)
+		{
+			base.OnClick (e);
+		}
+		
+		protected override void OnDrawItem (DrawItemEventArgs e)
+		{
+			if (check_states.Contains (Items [e.Index])) {
+				DrawItemState state = e.State | DrawItemState.Checked;
+				if (((CheckState) check_states [Items [e.Index]]) == CheckState.Indeterminate)
+					state |= DrawItemState.Inactive;
+				e = new DrawItemEventArgs (e.Graphics, e.Font, e.Bounds, e.Index, state, e.ForeColor, e.BackColor);
+			}
+			ThemeEngine.Current.DrawCheckedListBoxItem (this, e);
+		}
+
+		protected override void OnFontChanged (EventArgs e)
+		{
+			base.OnFontChanged (e);
+		}
+
+		protected override void OnHandleCreated (EventArgs e)
+		{
+			base.OnHandleCreated (e);
+		}
+
+		protected virtual void OnItemCheck (ItemCheckEventArgs ice)
+		{
+			ItemCheckEventHandler eh = (ItemCheckEventHandler)(Events [ItemCheckEvent]);
+			if (eh != null)
+				eh (this, ice);
+		}
+
+		protected override void OnKeyPress (KeyPressEventArgs e)
+		{
+			base.OnKeyPress (e);
+			
+			if (e.KeyChar == ' ' && FocusedItem != -1)
+				SetItemChecked (FocusedItem, !GetItemChecked (FocusedItem));
+		}
+
+		protected override void OnMeasureItem (MeasureItemEventArgs e)
+		{
+			base.OnMeasureItem (e);
+		}
+
+		protected override void OnSelectedIndexChanged (EventArgs e)
+		{
+			base.OnSelectedIndexChanged (e);
+		}
+
+		protected override void RefreshItems ()
+		{
+			base.RefreshItems ();
+		}
+
+		public void SetItemChecked (int index, bool value)
+		{
+			SetItemCheckState (index, value ? CheckState.Checked : CheckState.Unchecked);
+		}
+
+		public void SetItemCheckState (int index, CheckState value)
+		{
+			if (index < 0 || index >= Items.Count)
+				throw new ArgumentOutOfRangeException ("Index of out range");
+
+			if (!Enum.IsDefined (typeof (CheckState), value))
+				throw new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for CheckState", value));
+
+			CheckState old_value = GetItemCheckState (index);
+			
+			if (old_value == value)
+				return;
+
+			ItemCheckEventArgs icea = new ItemCheckEventArgs (index, value, old_value);
+    			OnItemCheck (icea);
+
+			switch (icea.NewValue) {
+			case CheckState.Checked:
+			case CheckState.Indeterminate:
+				check_states[Items[index]] = icea.NewValue;
+    				break;
+			case CheckState.Unchecked:
+				check_states.Remove (Items[index]);
+				break;
+			default:
+				break;
+			}
+
+			UpdateCollections ();
+
+    			InvalidateCheckbox (index);
+		}
+
+		protected override void WmReflectCommand (ref Message m)
+		{
+			base.WmReflectCommand (ref m);
+		}
+
+		protected override void WndProc (ref Message m)
+		{
+			base.WndProc (ref m);
+		}
+
+		#endregion Public Methods
+
+		#region Private Methods
+
+		int last_clicked_index = -1;
+
+		internal override void OnItemClick (int index)
+		{			
+			if ((CheckOnClick || last_clicked_index == index) && index > -1) {
+				if (GetItemChecked (index))
+					SetItemCheckState (index, CheckState.Unchecked);
+				else
+					SetItemCheckState (index, CheckState.Checked);
+			}
+			
+			last_clicked_index = index;
+			base.OnItemClick (index);
+		}
+
+		internal override void CollectionChanged ()
+		{
+			base.CollectionChanged ();
+			UpdateCollections ();
+		}
+
+		private void InvalidateCheckbox (int index)
+		{
+			Rectangle area = GetItemDisplayRectangle (index, TopIndex);
+			area.X += 2;
+			area.Y += (area.Height - 11) / 2;
+			area.Width = 11;
+			area.Height = 11;
+			Invalidate (area);
+		}
+
+		private void UpdateCollections ()
+		{
+			CheckedItems.Refresh ();
+			CheckedIndices.Refresh ();
+		}
+
+		#endregion Private Methods
+
+		public new class ObjectCollection : ListBox.ObjectCollection
+		{		
+			private CheckedListBox owner;
+
+			public ObjectCollection (CheckedListBox owner) : base (owner)
+			{
+				this.owner = owner;				
+			}
+
+			public int Add (object item, bool isChecked)
+			{
+				return Add (item, isChecked ? CheckState.Checked : CheckState.Unchecked);
+			}
+			
+			public int Add (object item, CheckState check)
+			{
+				int idx = Add (item);
+
+				ItemCheckEventArgs icea = new ItemCheckEventArgs (idx, check, CheckState.Unchecked);
+				
+				if (check == CheckState.Checked)
+					owner.OnItemCheck (icea);
+					
+				if (icea.NewValue != CheckState.Unchecked)
+					owner.check_states[item] = icea.NewValue;
+					
+				owner.UpdateCollections ();
+				return idx;
+			}
+		}
+
+		public class CheckedIndexCollection : IList, ICollection, IEnumerable
+		{
+			private CheckedListBox owner;
+			private ArrayList indices = new ArrayList ();
+
+			internal CheckedIndexCollection (CheckedListBox owner)
+			{
+				this.owner = owner;
+			}
+
+			#region Public Properties
+			public int Count {
+				get { return indices.Count; }
+			}
+
+			public bool IsReadOnly {
+				get { return true;}
+			}
+
+			bool ICollection.IsSynchronized {
+				get { return false; }
+			}
+
+			bool IList.IsFixedSize{
+				get { return true; }
+			}
+
+			object ICollection.SyncRoot {
+				get { return this; }
+			}
+
+			[Browsable (false)]
+			//[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+			public int this[int index] {
+				get {
+					if (index < 0 || index >= Count)
+						throw new ArgumentOutOfRangeException ("Index of out range");
+
+					return (int) indices[index];
+				}
+			}
+			#endregion Public Properties
+
+			public bool Contains (int index)
+			{
+				return indices.Contains (index);
+			}
+
+
+			public void CopyTo (Array dest, int index)
+			{
+				indices.CopyTo (dest, index);
+			}
+
+			public IEnumerator GetEnumerator ()
+			{
+				return indices.GetEnumerator ();
+			}
+
+			int IList.Add (object value)
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.Clear ()
+			{
+				throw new NotSupportedException ();
+			}
+
+			bool IList.Contains (object index)
+			{
+				return Contains ((int)index);
+			}
+
+			int IList.IndexOf (object index)
+			{
+				return IndexOf ((int) index);
+			}
+
+			void IList.Insert (int index, object value)
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.Remove (object value)
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.RemoveAt (int index)
+			{
+				throw new NotSupportedException ();
+			}
+
+			object IList.this[int index]{
+				get {return indices[index]; }
+				set {throw new NotImplementedException (); }
+			}
+
+			public int IndexOf (int index)
+			{
+				return indices.IndexOf (index);
+			}
+
+			#region Private Methods
+			internal void Refresh ()
+			{
+				indices.Clear ();
+				for (int i = 0; i < owner.Items.Count; i++)
+					if (owner.check_states.Contains (owner.Items [i]))
+						indices.Add (i);
+			}
+			#endregion Private Methods
+
+		}
+
+		public class CheckedItemCollection : IList, ICollection, IEnumerable
+		{
+			private CheckedListBox owner;
+			private ArrayList list = new ArrayList ();
+
+			internal CheckedItemCollection (CheckedListBox owner)
+			{
+				this.owner = owner;
+			}
+
+			#region Public Properties
+			public int Count {
+				get { return list.Count; }
+			}
+
+			public bool IsReadOnly {
+				get { return true; }
+			}
+
+			[Browsable (false)]
+			//[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+			public object this [int index] {
+				get {
+					if (index < 0 || index >= Count)
+						throw new ArgumentOutOfRangeException ("Index of out range");
+
+					return list[index];
+				}
+				set {throw new NotSupportedException ();}
+			}
+
+			bool ICollection.IsSynchronized {
+				get { return true; }
+			}
+
+			object ICollection.SyncRoot {
+				get { return this; }
+			}
+
+			bool IList.IsFixedSize {
+				get { return true; }
+			}
+
+			#endregion Public Properties
+
+			#region Public Methods
+			public bool Contains (object item)
+			{
+				return list.Contains (item);
+			}
+
+			public void CopyTo (Array dest, int index)
+			{
+				list.CopyTo (dest, index);
+			}
+
+			int IList.Add (object value)
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.Clear ()
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.Insert (int index, object value)
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.Remove (object value)
+			{
+				throw new NotSupportedException ();
+			}
+
+			void IList.RemoveAt (int index)
+			{
+				throw new NotSupportedException ();
+			}
+	
+			public int IndexOf (object item)
+			{
+				return list.IndexOf (item);
+			}
+
+			public IEnumerator GetEnumerator ()
+			{
+				return list.GetEnumerator ();
+			}
+
+			#endregion Public Methods
+
+			#region Private Methods
+			internal void Refresh ()
+			{
+				list.Clear ();
+				for (int i = 0; i < owner.Items.Count; i++)
+					if (owner.check_states.Contains (owner.Items [i]))
+						list.Add (owner.Items[i]);
+			}
+			#endregion Private Methods
+		}
+		[DefaultValue (false)]
+		public bool UseCompatibleTextRendering {
+			get { return use_compatible_text_rendering; }
+			set { use_compatible_text_rendering = value; }
+		}
+	}
+}
+