public void SetAppSetting(string name, string value)
{
// Ensure there's an <appSettings> node inside <configuration>
// If not, create it.
XmlNode settingsNode = config.SelectSingleNode("configuration/appSettings");
if (settingsNode == null)
{
settingsNode = config.CreateNode(XmlNodeType.Element, "appSettings", "");
config.SelectSingleNode("configuration").AppendChild(settingsNode);
}
XmlAttribute key = config.CreateAttribute("key");
key.Value = name;
XmlAttribute val = config.CreateAttribute("value");
val.Value = value;
bool found = false;
foreach (XmlNode n in settingsNode.ChildNodes)
{
if (n.Name == "add" && n.Attributes.GetNamedItem("key").Value == name)
{
n.Attributes.SetNamedItem(key);
n.Attributes.SetNamedItem(val);
found = true;
break;
}
}
if (!found)
{
XmlNode itemNode = config.CreateNode(XmlNodeType.Element, "add", "");
settingsNode.AppendChild(itemNode);
itemNode.Attributes.SetNamedItem(key);
itemNode.Attributes.SetNamedItem(val);
}
}