Config操作类

using System;
using System.Xml;
using System.Configuration;

namespace EmanUtils

{

    /**//// <summary>
    /// 读配置文件的操作
    /// Config操作类
    /// </summary>
    public class ConfigHelper
    {
        public ConfigHelper()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }

        GetConfigValueOfKey(string Key) 得到配置文件的值#region GetConfigValueOfKey(string Key) 得到配置文件的值

        public string GetConfigValueOfKey(string Key)
        {
            try
            {
                string value = ConfigurationSettings.AppSettings[Key];
                //Console.WriteLine(Key);
                //Console.WriteLine(value);
                return value;
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
                Console.WriteLine(ex.StackTrace);
                return "";
            }
        }
        #endregion

//        #region abstract CreateConfigValueOfKey 需要开发
//        public void CreateConfigValueOfKey(string Key , string KeyValue)
//        {
//       
//        }
//        #endregion

        UpdateConfigValueOfKey#region UpdateConfigValueOfKey
        public void UpdateConfigValueOfKey(string Key , string KeyValue)
        {
            XmlDocument doc=new XmlDocument();
            //获得配置文件的全路径
            string strFileName=AppDomain.CurrentDomain.BaseDirectory.ToString()+"App.config";
            Console.WriteLine(strFileName);
            //return;
            doc.Load(strFileName);
            //找出名称为“add”的所有元素
           
            //bool IsExist = false;

            XmlNodeList nodes=doc.GetElementsByTagName("add");
            for(int i=0;i<nodes.Count;i++)
            {
                //获得将当前元素的key属性
                XmlAttribute att=nodes[i].Attributes["key"];
                //根据元素的第一个属性来判断当前的元素是不是目标元素
                if (att.Value.ToString().Equals(Key))
                {
                    //对目标元素中的第二个属性赋值
                    att=nodes[i].Attributes["value"];
                    att.Value=KeyValue;
                    //IsExist = true;
                    break;
                }
            }
            //保存上面的修改
            doc.Save(strFileName);
        }
        #endregion
    }
}