修改App.Config 文件问题

Question

怎么去修改啊? 怎么修改失败

Answer 1

protected string GetValue(string AppKey)
        {
            try
            {
                string AppKeyValue;
                AppKeyValue = (string)System.Configuration.ConfigurationManager.AppSettings[AppKey];
                return AppKeyValue;
            }
            catch (Exception ex)
            {
                return "";
            }
        }        protected bool SetValue(string AppKey, string AppValue)
        {
            try
            {
                XmlDocument xDoc = new XmlDocument();
                xDoc.Load(AppDomain.CurrentDomain.BaseDirectory + "/" + AppConfigName);
                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(AppDomain.CurrentDomain.BaseDirectory + "/" + AppConfigName);
            }
            catch
            {
                return false;
            }
            return true;
        }试试看

Answer 2

其实就是跟操作XML文件差不多。

Answer 3

neng 给点操作XML de 例子吗？
呵呵,谢啦