Winform读写App.config文件以及重启程序

1. //重启主程序
2. //System.Diagnostics.Process.Start(System.Reflection.Assembly.GetExecutingAssembly().Location);
3. #region 读存app.config字段值
4. public static string GetConfigValue(string appKey)
5. {
6. XmlDocument xDoc = new XmlDocument();
7. try
8. {
9. //缓存路径
10. xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");
11. System.Xml.XmlNode xNode;
12. System.Xml.XmlElement xElem;
13. xNode = xDoc.SelectSingleNode("//appSettings");
14. xElem = (System.Xml.XmlElement)xNode.SelectSingleNode("//add[@key='" + appKey + "']");
15. if (xElem != null)
16. return xElem.GetAttribute("value");
17. else
18. return "";
19. }
20. catch
21. {
22. return "";
23. }
24. }
25. public static void SetConfigValue(string AppKey, string AppValue)
26. {
27. XmlDocument xDoc = new XmlDocument();
28. xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");
29. XmlNode xNode;
30. XmlElement xElem1;
31. XmlElement xElem2;
32. xNode = xDoc.SelectSingleNode("//appSettings");
33. xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");
34. if (xElem1 != null) xElem1.SetAttribute("value", AppValue);
35. else
36. {
37. xElem2 = xDoc.CreateElement("add");
38. xElem2.SetAttribute("key", AppKey);
39. xElem2.SetAttribute("value", AppValue);
40. xNode.AppendChild(xElem2);
41. }
42. xDoc.Save(System.Windows.Forms.Application.ExecutablePath + ".config");
43. }
44. #endregion

        //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