Find the Type

        public bool ValidateData(object data)
        {
            foreach (PropertyInfo propertyInfo in data.GetType().GetProperties())
            {
                if (propertyInfo.PropertyType == typeof(DateTime) )
                {
                    if (Convert.ToDateTime(propertyInfo.GetValue(data))  == DateTime.MinValue)
                    {
                        propertyInfo.SetValue(data, DateTime.Now);
                    }
                  
                }
            }