/// 
        /// 转换类型 /// 
        ///         ///         /// 
             public static object ConvertValue(Type type, object value)        {            if (Convert.IsDBNull(value) || (value == null))            {                return null;            }            if (type.IsValueType && !type.IsEnum && !type.IsPrimitive && !type.IsSerializable)            {                string data = value.ToString();                return SerializationManager.Deserialize(type, data);            }            Type type2 = value.GetType();            if (type == type2)            {                return value;            }            if (((type == typeof(Guid)) || (type == typeof(Guid?))) && (type2 == typeof(string)))            {                if (string.IsNullOrEmpty(value.ToString()))                {                    return null;                }                return new Guid(value.ToString());            }            if (((type == typeof(DateTime)) || (type == typeof(DateTime?))) && (type2 == typeof(string)))            {                if (string.IsNullOrEmpty(value.ToString()))                {                    return null;                }                return Convert.ToDateTime(value);            }            if (type.IsEnum)            {                try                {                    return Enum.Parse(type, value.ToString(), true);                }                catch                {                    return Enum.ToObject(type, value);                }            }            if (((type == typeof(bool)) || (type == typeof(bool?))))            {                bool tempbool = false;                if (bool.TryParse(value.ToString(), out tempbool))                {                    return tempbool;                }                else                {                    //处理  Request.Form  的 checkbox  如果没有返回值就是没有选中false                      if (string.IsNullOrEmpty(value.ToString()))                        return false;                    else                    {                        if (value.ToString() == "0")                        {                            return false;                        }                        return true;                    }                }            }            if (type.IsGenericType)            {                type = type.GetGenericArguments()[0];            }            return Convert.ChangeType(value, type);        }        /// 
        /// 转换数据类型        /// 
        /// 
             ///         /// 
             public static TResult ConvertValue
     
      (object value)        {            if (Convert.IsDBNull(value) || value == null)                return default(TResult);            object obj = ConvertValue(typeof(TResult), value);            if (obj == null)            {                return default(TResult);            }            return (TResult)obj;        }