applicationconfiguration.cs

一个基于.NETFramework架构的图书管理系统

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;

namespace Configuration
{
    public class ApplicationConfiguration
    {
        private ApplicationConfiguration()
        { 
        }
        private static string _connectionString = null;
        public static string ConnectionString
        {
            get
            {
                if (_connectionString == null)
                {
                    XmlDocument xmldoc = new XmlDocument();
                    xmldoc.Load("LibraryWin.config");
                    XmlNode xmlnode = xmldoc.SelectSingleNode("/configuration/DBConnectionString");
                    _connectionString = xmlnode.InnerText;

                }
                return _connectionString;
            }
        }
    }
}