54 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
using System;
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using System.ComponentModel;
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using System.Windows.Forms;
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using AT.STO.UI.Win;
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namespace Demo
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{
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	internal class DerivedTreeCombo : DropDownPanel
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	{
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	#region Constructor / Destructor
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		public DerivedTreeCombo() : base()
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		{
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			// The base class's property must be set because
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			// this derived implementation hides the setter.
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			base.DropDownControl = new DropDownTree();
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			this.DropDownControl.BorderStyle = BorderStyle.None;
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		}
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	#endregion
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	#region Public Properties
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		/// <summary>
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		/// Returns the DateRangePicker, that is displayed in the dropdown.
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		/// </summary>
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		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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		public new DropDownTree DropDownControl				// new is on purpose to change the property's data type and to hide the setter.
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		{
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			get
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			{ 
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				if (base.DropDownControl != null)					
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				{
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					return base.DropDownControl as DropDownTree;
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				}
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				return null;
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			}
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		}
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		public new DropDownNode Value
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		{
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			get 
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			{
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				if (this.DropDownControl != null)
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				{
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					return this.DropDownControl.Value as DropDownNode;
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				}
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				return null;
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			}
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			set { base.Value = value; }
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		}
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	#endregion
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	}
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}
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