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diff --git a/utils/itemtest_controls/dualpanellist.h b/utils/itemtest_controls/dualpanellist.h
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+++ b/utils/itemtest_controls/dualpanellist.h
@@ -0,0 +1,144 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+//=============================================================================
+
+#ifndef DUAL_PANEL_LIST_H
+#define DUAL_PANEL_LIST_H
+
+#if defined( _WIN32 )
+#pragma once
+#endif
+
+#include <utllinkedlist.h>
+#include <utlvector.h>
+#include <vgui/VGUI.h>
+#include <vgui_controls/Panel.h>
+
+class KeyValues;
+
+//-----------------------------------------------------------------------------
+// Purpose: A list of variable height child panels
+//  each list item consists of a label-panel pair. Height of the item is
+// determined from the lable.
+//-----------------------------------------------------------------------------
+class CDualPanelList : public vgui::Panel
+{
+	DECLARE_CLASS_SIMPLE( CDualPanelList, vgui::Panel );
+
+public:
+	CDualPanelList( vgui::Panel *parent, char const *panelName );
+	~CDualPanelList();
+
+	// DATA & ROW HANDLING
+	// The list now owns the panel
+	virtual int AddItem( vgui::Panel *labelPanel, vgui::Panel *panel );
+	int	GetItemCount() const;
+	int GetItemIDFromRow( int nRow ) const;
+
+	// Iteration. Use these until they return InvalidItemID to iterate all the items.
+	int FirstItem() const;
+	int NextItem( int nItemID ) const;
+	int InvalidItemID() const;
+
+	virtual Panel *GetItemLabel( int itemID ); 
+	virtual Panel *GetItemPanel( int itemID ); 
+	virtual bool IsItemVisible( int nItemID ) const;
+	virtual void SetItemVisible( int nItemID, bool bVisible );
+
+//	vgui::ScrollBar *GetScrollbar() { return m_pScrollBar; }
+
+	virtual void RemoveItem( int itemID );		// removes an item from the table (changing the indices of all following items)
+	virtual void DeleteAllItems();				// clears and deletes all the memory used by the data items
+	void RemoveAll();
+
+	// painting
+	virtual vgui::Panel *GetCellRenderer( int row );
+
+	// layout
+	void SetFirstColumnWidth( int width );
+	int GetFirstColumnWidth();
+	void SetNumColumns( int iNumColumns );
+	int GetNumColumns( void );
+//	void MoveScrollBarToTop();
+
+	// selection
+	void SetSelectedPanel( vgui::Panel *panel );
+	Panel *GetSelectedPanel();
+	/*
+		On a panel being selected, a message gets sent to it
+			"PanelSelected"		int "state"
+		where state is 1 on selection, 0 on deselection
+	*/
+
+	void		SetVerticalBufferPixels( int buffer );
+
+	void		ScrollToItem( int itemNumber );
+
+	CUtlVector< int > *GetSortedVector( void )
+	{
+		return &m_SortedItems;
+	}
+
+protected:
+	// overrides
+	virtual void OnSizeChanged(int wide, int tall);
+	MESSAGE_FUNC_INT( OnSliderMoved, "ScrollBarSliderMoved", position );
+	virtual void PerformLayout();
+	virtual void ApplySchemeSettings(vgui::IScheme *pScheme);
+	virtual void OnMouseWheeled(int delta);
+
+private:
+	int	ComputeVPixelsNeeded();
+
+	enum { DEFAULT_HEIGHT = 24, PANELBUFFER = 5 };
+
+	class CDataItem
+	{
+	public:
+		CDataItem()
+		: m_bVisible( true )
+		{
+		}
+
+		void SetVisible( int bVisible )
+		{
+			m_bVisible = bVisible;
+
+			if ( panel )
+			{
+				panel->SetVisible( m_bVisible );
+			}
+
+			if ( labelPanel )
+			{
+				labelPanel->SetVisible( m_bVisible );
+			}
+		}
+
+		bool IsVisible() const { return m_bVisible; }
+
+		// Always store a panel pointer
+		vgui::Panel *panel;
+		vgui::Panel *labelPanel;
+		bool m_bVisible;
+	};
+
+	// list of the column headers
+
+	CUtlLinkedList< CDataItem, int>		m_DataItems;
+	CUtlVector<int>						m_SortedItems;
+
+	vgui::ScrollBar				*m_pScrollBar;
+	vgui::Panel					*m_pPanelEmbedded;
+
+	vgui::PHandle					m_hSelectedItem;
+	int						m_iFirstColumnWidth;
+	int						m_nNumColumns;
+	int						m_iDefaultHeight;
+	int						m_iPanelBuffer;
+
+//	CPanelAnimationVar( bool, m_bAutoHideScrollbar, "autohide_scrollbar", "0" );
+};
+
+
+#endif // DUAL_PANEL_LIST_H