winform项目中app.config读取修改小结!

类别:.NET开发 点击:0 评论:0 推荐:

第一次写啊,各位多多包涵,多给些鼓励!谢谢!

刚开始做net程序,要对项目配置文件app.comfig进行读写操作下面两个方法分别完成读写操作.

//读

public static string GetValue(string AppKey)
  {
   try
   {
    string AppKeyValue;
    AppKeyValue=System.Configuration.ConfigurationSettings.AppSettings.Get(AppKey);
    return AppKeyValue;
   } 
   catch(Exception ex)
   {
    throw ex;
   }
  }

//写
  public static void SetValue(string AppKey,string AppValue)
  {
   //System.Configuration.ConfigurationSettings.AppSettings.Set(AppKey,AppValue);
   XmlDocument xDoc = new XmlDocument();
   xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");
    
   XmlNode xNode;
   XmlElement xElem1;
   XmlElement xElem2;

   xNode =  xDoc.SelectSingleNode("//appSettings");
   
   xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");
   if ( xElem1 != null ) xElem1.SetAttribute("value",AppValue);
   else
   {
    xElem2 = xDoc.CreateElement("add");
    xElem2.SetAttribute("key",AppKey);
    xElem2.SetAttribute("value",AppValue);
    xNode.AppendChild(xElem2);
   }
   xDoc.Save(System.Windows.Forms.Application.ExecutablePath + ".config");
  }

看到第二个方法中注释掉的那一行吗?本来以为可以象读一样简单的完成协定俄操作.结果,不幸,得把app.config文件当作一个普通的XML文件来进行写的操作才可以!

本文地址:http://com.8s8s.com/it/it42211.htm