[Editor(typeof(ControlLib.Design.ImageOverItemEditor),typeof(UITypeEditor))]

using System;
using System.Web.UI.Design;
using System.Drawing.Design;
using System.ComponentModel;


namespace ControlLib.Design
{
    /// <summary>
    /// Summary description for ImageOverItemEditor.
    /// </summary>
    public class ImageOverItemEditor : UITypeEditor
    {

     string _Caption = "Select Image";
     string _Filter ="Image Files(*.gif;*.jpg;*.jpeg;*.bmp;*.wmf;*.png)|*.gif;*.jpg;*.jpeg;*.bmp;*.wmf;*.png|All Files(*.*)|*.*|";
     UrlBuilderOptions _Options = UrlBuilderOptions.NoAbsolute;
        
        
     /// <summary>
     /// Initializes a new instance of the ImageOverItemEditor
     /// </summary>
     public ImageOverItemEditor()
     {
     }
    
     public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
     {
        if (provider!=null)
         {
            object item=null;
            string url="";

            if (context.Instance is ImageOverItem)
             item =((ImageOverItem)context.Instance).Parent;

            if ((item != null) && (item is IComponent))
            {
             url = UrlBuilder.BuildUrl((IComponent)item, null, (string)value, _Caption, _Filter, _Options);
             if (url != null)
             {
                return url;
             }
            }
         }
         return "";
        }

    }
}