剛開始做net程序,要對項目配置文件app.comfig進行讀寫操作下面兩個方法分別完成讀寫操作.
//讀
public static string GetValue(string AppKey)
{
try
{
string AppKeyValue;
AppKeyValue=System.Configuration.ConfigurationSettings.AppSettings.Get(AppKey);
return AppKeyValue;
}
catch(Exception ex)
{
throw ex;
}
}
//寫
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");
}
看到第二個方法中註釋掉的那一行嗎?本來以爲可以象讀一樣簡單的完成協定俄操作.結果,不幸,得把app.config文件當作一個普通的XML文件來進行寫的操作纔可以!