GBRSWN/CZFW.Framework/Attributes/DropdownSrcAttribute.cs

using System;
namespace CZFW.Framework.Attributes
{
    public class DropdownSrcAttribute : Attribute
    {
        public string SrcUrl { get; set; }
        public string GetSrcUrl()
        {
            if (!string.IsNullOrWhiteSpace(SrcUrl))
                return SrcUrl;           
            return null;
        }

    }
}