Winform读写App.config文件以及重启程序

//重启主程序
//System.Diagnostics.Process.Start(System.Reflection.Assembly.GetExecutingAssembly().Location);
#region 读存app.config字段值
public static string GetConfigValue(string appKey)
{
XmlDocument xDoc = new XmlDocument();
try
{
//缓存路径
xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");
System.Xml.XmlNode xNode;
System.Xml.XmlElement xElem;
xNode = xDoc.SelectSingleNode("//appSettings");
xElem = (System.Xml.XmlElement)xNode.SelectSingleNode("//add[@key='" + appKey + "']");
if (xElem != null)
return xElem.GetAttribute("value");
else
return "";
}
catch
{
return "";
}
}

public static void SetConfigValue(string AppKey, string 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");
}
#endregion