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  • C# 修改WebConfig

    Modify("Count",this.txtCount.Text.Trim());
    
    /// <summary>
    /// 修改web.config文件appsettings配置节中的add里的value属性
    /// </summary>
    /// <remarks>
    /// 注意,调用该函数后,会使整个web application重启,导致当前所有的会话丢失 /// </remarks>
    /// <param name="key">要修改的键key</param>
    /// <param name="strvalue">修改后的value</param>
    /// <exception cref="">找不到相关的键</exception>
    /// <exception cref="">权限不够,无法保存到web.config文件中</exception>
    
    private void Modify(string key,string strvalue)
    {
      string xpath = "/configuration/appSettings/add[@key=''Count'']";
      XmlDocument domwebconfig = new XmlDocument();
    
      domwebconfig.Load(HttpContext.Current.Server.MapPath("/web.config"));
      XmlNode addkey = domwebconfig.SelectSingleNode((xpath.Replace("Count", key)));
      if (addkey == null)
      {
        throw new ArgumentException("没有找到<add key=" + key + " value=.../>的配置节");
      }
      addkey.Attributes["value"].InnerText = strvalue;
      domwebconfig.Save(HttpContext.Current.Server.MapPath("/web.config"));
    }
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  • 原文地址:https://www.cnblogs.com/Shadow3627/p/3027242.html
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