这个get_item到底要怎么转换
有这样一段程序

C# code

using Microsoft.Practices.EnterpriseLibrary.Common.Configuration;    using Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder;    using System;    using System.Configuration;    [Assembler(typeof(CacheDependencyAssembler))]    internal class CacheDependencyData : NameTypeConfigurationElement    {        private const string dataBaseProperty = "database";        private const string dataTableProperty = "table";        private static void Settings()        {            new CacheDependencySettings().IsReadOnly();        }        [ConfigurationProperty("database", IsRequired=true)]        public string Database        {            get            {                return (string)  base.get_Item("database");            }            set            {                base.set_Item("database", value);            }        }        [ConfigurationProperty("table", IsRequired=true)]        public string Table        {            get            {                return (string) base.get_Item("table");            }            set            {                base.set_Item("table", value);            }        }    }

现在这段程序 在vs2005 里编译不过去，get_Item和set_Item出错，提示无法显示调用的运算符和访问器
可能是vs2003的产物，要怎么转换，能在vs2005里正常运行

[解决办法]
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