using System;
using System.ComponentModel;

namespace BLToolkit.DataAccess
{
    [AttributeUsage(AttributeTargets.Parameter)]
    public class ParamNullValueAttribute : Attribute
    {
        public ParamNullValueAttribute(object value)
        {
            _value = value;
        }

        public ParamNullValueAttribute(Type type, string value)
        {
            _value = TypeDescriptor.GetConverter(type).ConvertFromInvariantString(value);
        }

        private readonly object _value;
        public           object  Value
        {
            get { return _value; }
        }
    }
}