Single Object Property Database

using System;
using System.Collections.Generic;

using System.Text;

namespace PropertyMapping
{
    [CLSCompliant(true)]
    [Serializable]
    public class ObjectAlreadyDefinedException: ArgumentException 
    {
        string strValue = string.Empty;
        public ObjectAlreadyDefinedException(object conflictObject)
        {
            string objectDefintion  ="null"; 
            if(conflictObject != null) 
                objectDefintion = conflictObject.ToString();

            strValue = "Object " + objectDefintion + " already registered in the database";
         }

        public ObjectAlreadyDefinedException(Type conflictObjectType)
        {
            string objectDefintion = "null";
            if (conflictObjectType != null)
                objectDefintion = conflictObjectType.ToString();

            strValue = "Object " + objectDefintion + " already registered in the database";
        }

        public override string ToString()
        {
            if(string.IsNullOrEmpty(strValue))
                return base.ToString();
            return strValue;
        }
    }

    [CLSCompliant(true)]
    [Serializable]
    public class ObjectHasNotValidProperties : ArgumentException
    {
        string strValue = string.Empty;
        public ObjectHasNotValidProperties(object conflictObject)
        {
            string objectDefintion = "null";
            if (conflictObject != null)
                objectDefintion = conflictObject.ToString();

            strValue = "Object " + objectDefintion + " doesn't have valid property definitions";
        }


        public override string ToString()
        {
            if (string.IsNullOrEmpty(strValue))
                return base.ToString();
            return strValue;
        }
    }

    [CLSCompliant(true)]
    [Serializable]
    public class NotValidProperty : ArgumentException
    {
        string strValue = string.Empty;
        public NotValidProperty(System.Reflection.PropertyInfo pi)
        {
            string objectDefintion = "null";
            if (pi != null)
                objectDefintion = pi.Name;

            strValue = "Property " + objectDefintion + " must have the return type that supports IClonable, and supports both Read and Write.";
        }


        public override string ToString()
        {
            if (string.IsNullOrEmpty(strValue))
                return base.ToString();
            return strValue;
        }
    }
}