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public
void saveValue(string
Name, string
Value){ ConfigurationManager.AppSettings.Set(Name, Value); Configuration config = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath); config.AppSettings.Settings[Name].Value = Value; config.Save(ConfigurationSaveMode.Modified); config = null;} |
用上面的函数总是等到程序运行结束，才将数据保存进去。
所以我们换了一种方式，以xml的方式进行保存及读取。直接上代码。
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public
static void SetAppConfig(string
appKey, string
appValue){ XmlDocument xDoc = new
XmlDocument(); xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config"); var
xNode = xDoc.SelectSingleNode("//appSettings"); var
xElem = (XmlElement)xNode.SelectSingleNode("//add[@key=‘"
+ appKey + "‘]"); if
(xElem != null) xElem.SetAttribute("value", appValue); else { var
xNewElem = xDoc.CreateElement("add"); xNewElem.SetAttribute("key", appKey); xNewElem.SetAttribute("value", appValue); xNode.AppendChild(xNewElem); } xDoc.Save(System.Windows.Forms.Application.ExecutablePath + ".config");}public
static string GetAppConfig(string
appKey){ XmlDocument xDoc = new
XmlDocument(); xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config"); var
xNode = xDoc.SelectSingleNode("//appSettings"); var
xElem = (XmlElement)xNode.SelectSingleNode("//add[@key=‘"
+ appKey + "‘]"); if
(xElem != null) { return
xElem.Attributes["value"].Value; } return
string.Empty;} |
使用方式
设置
SetAppConfig("SourceDBIP", txtSourceAddress.Text.Trim());
读取
Setting.GetAppConfig("SourceDBIP")
关于app.config不能即时保存读取的解决方案,布布扣,bubuko.com
原文：http://www.cnblogs.com/homezzm/p/3580079.html