diff --git a/PROMS/Volian.Controls.Library/vlnTreeCombo.cs b/PROMS/Volian.Controls.Library/vlnTreeCombo.cs
new file mode 100644
index 00000000..11e2abc9
--- /dev/null
+++ b/PROMS/Volian.Controls.Library/vlnTreeCombo.cs
@@ -0,0 +1,53 @@
+using System;
+using System.ComponentModel;
+using System.Windows.Forms;
+
+using AT.STO.UI.Win;
+
+namespace Volian.Controls.Library
+{
+	internal class vlnTreeCombo : DropDownPanel
+	{
+	#region Constructor / Destructor
+		public vlnTreeCombo(): base()
+		{
+			// The base class's property must be set because
+			// this derived implementation hides the setter.
+			base.DropDownControl = new DropDownTree();
+			this.DropDownControl.BorderStyle = BorderStyle.None;
+		}
+	#endregion
+	#region Public Properties
+		/// <summary>
+		/// Returns the tree control, that is displayed in the dropdown.
+		/// </summary>
+		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+		public new DropDownTree DropDownControl				// new is on purpose to change the property's data type and to hide the setter.
+		{
+			get
+			{ 
+				if (base.DropDownControl != null)					
+				{
+					return base.DropDownControl as DropDownTree;
+				}
+				
+				return null;
+			}
+		}
+		
+		public new DropDownNode Value
+		{
+			get 
+			{
+				if (this.DropDownControl != null)
+				{
+					return this.DropDownControl.Value as DropDownNode;
+				}
+				
+				return null;
+			}
+			set { base.Value = value; }
+		}
+	#endregion
+	}
+}