WinForm操作config文件

往配置文件中保存配置信息

View Code

 1 public void SetConfigValue(string AppKey, string AppValue)

 2         {

 3             XmlDocument xDoc = new XmlDocument();

 4             xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");

 5             XmlNode xNode;

 6             XmlElement xElem1;

 7             XmlElement xElem2;

 8             xNode = xDoc.SelectSingleNode("//appSettings");

 9             xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");

10             if (xElem1 != null)

11                 xElem1.SetAttribute("value", AppValue);

12             else//如果没有该节点，则添加

13             {

14                 xElem2 = xDoc.CreateElement("add");

15                 xElem2.SetAttribute("key", AppKey);

16                 xElem2.SetAttribute("value", AppValue);

17                 xNode.AppendChild(xElem2);

18             }

19             xDoc.Save(System.Windows.Forms.Application.ExecutablePath + ".config");

20         }

根据节点名称读取配置信息

View Code

 1 public string GetConfigValue(string AppKey)

 2         {

 3             XmlDocument xDoc = new XmlDocument();

 4             try

 5             {

 6                 xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");

 7                 XmlNode xNode = xDoc.SelectSingleNode("//appSettings");

 8                 XmlElement xElem = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");

 9                 if (xElem != null)

10                     return xElem.GetAttribute("value");

11                 else

12                     return "";

13             }

14             catch (Exception ex)

15             {

16                 return ex.ToString();

17             }

18         }