@Prog! - ASP.NET(C#) AJAX -

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TestConsoleApplication
{
    class Program
    {
        [AttributeUsage(AttributeTargets.Property)]
        public class ColumnMappingAttribute : System.Attribute
        {
            private string _name;
            public ColumnMappingAttribute(string name)
            {
                _name = name;
            }
            public string Name
            {
                get { return _name; }
            }
        }

        public class MyClass
        {
            [ColumnMapping("ItemNbr")]
            public int ItemNbr
            {
                get { return 0; }
            }
        }

        static void Main(string[ args)
        {
            MyClass myClass = new MyClass();
            object[ o = myClass.GetType().GetProperty("ItemNbr").GetCustomAttributes(false);

            Console.WriteLine(((ColumnMappingAttribute)o[0]).Name);

           
            Console.Read();
        }
    }
}