public void EditCarsXml()
{
var appConfigFilePath = string.Concat(Assembly.GetExecutingAssembly().Location, ".config");
var appConfigWriterSettings =
new ConfigModificatorSettings("//appSettings", "//add[@key='{0}']", appConfigFilePath);
var value = ConfigurationManager.AppSettings["testKey1"];
Console.WriteLine("Value before modification: {0}", value);
ConfigModificator.ChangeValueByKey(
key: "testKey1",
value: "ChangedValueByModificator",
attributeForChange: "value",
configWriterSettings: appConfigWriterSettings);
ConfigModificator.RefreshAppSettings();
value = ConfigurationManager.AppSettings["testKey1"];
Console.WriteLine("Value after modification: {0}", value);
//Example how to change Custom XML configuration
var carsConfigFilePath = "Cars.xml";
var carsConfigWriterSettings =
new ConfigModificatorSettings("//cars", "//car[@name='{0}']", carsConfigFilePath);
ConfigModificator.ChangeValueByKey(
key: "BMW",
value: "Mazda",
attributeForChange: "name",
configWriterSettings: carsConfigWriterSettings);
}
public static void ChangeValueByKey(string key, string value, string attributeForChange, ConfigModificatorSettings configWriterSettings)
{
var doc = LoadConfigDocument(configWriterSettings.ConfigPath);
var rootNode = doc.SelectSingleNode(configWriterSettings.RootNode);
if (rootNode == null)
{
throw new InvalidOperationException("the root node section not found in config file.");
}
try
{
var elem = (XmlElement)rootNode.SelectSingleNode(string.Format(configWriterSettings.NodeForEdit, key));
elem.SetAttribute(attributeForChange, value);
doc.Save(configWriterSettings.ConfigPath);
}
catch (Exception ex)
{
throw ex;
}
}
