在WinForm中,可以通过添加配置文件(如App.config)来为程序简易地设置一些参数,但为了自己指定配置文件的位置,就不用VS添加了,写两个方法读取和修改指定文件。
public class AppSettings
{
public static string AppConfig()
{
return System.IO.Path.Combine(Application.StartupPath, "App.config");//此处配置文件在程序目录下
}
public static string GetValue(string appKey)
{
XmlDocument xDoc = new XmlDocument();
try
{
xDoc.Load(AppSettings.AppConfig());
XmlNode xNode;
XmlElement xElem;
xNode = xDoc.SelectSingleNode("//appSettings"); //补充,需要在你的app.config 文件中增加一下,<appSetting> </appSetting>
xElem = (XmlElement)xNode.SelectSingleNode("//add[@key='" + appKey + "']");
if (xElem != null)
return xElem.GetAttribute("value");
else
return "";
}
catch (Exception)
{
return "";
}
}
public static void SetValue(string AppKey, string AppValue)
{
XmlDocument xDoc = new XmlDocument();
xDoc.Load(AppSettings.AppConfig());
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(AppSettings.AppConfig());
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public static XmlNode GetAddressValues()
{
XmlDocument xDoc = new XmlDocument();
xDoc.Load(AppConfig());
XmlNode xNode;
xNode = xDoc.SelectSingleNode("//MainForm-comboBoxWeb");
return xNode;
}
public static void SetAddressValue(string AppValue)
{
XmlDocument xDoc = new XmlDocument();
xDoc.Load(AppConfig());
XmlNode element;
element = xDoc.SelectSingleNode("//MainForm-comboBoxWeb");
XmlNode node = xDoc.CreateNode(XmlNodeType.Element, "Item", "");
node.InnerText = AppValue;
element.AppendChild(node);
xDoc.Save(AppConfig());
}
}