Read config file using XMl reader

问题:

I have a bunch of key in AppSettings section of my web.config file. I want to read the key and values of those app settings using XML reader technique and populate them in the list box.

回答1:

The best way is to retrive webconfig values is to use System.Configuration.ConfigurationManager.AppSettings;

To retrive values of webconfig from xml reader:

private void loadConfig()
        {

            XmlDocument xdoc = new XmlDocument();
            xdoc.Load( Server.MapPath("~/") + "web.config");
            XmlNode  xnodes = xdoc.SelectSingleNode ("/configuration/appSettings");

                foreach (XmlNode xnn in xnodes .ChildNodes)
                {
                    ListBox1.Items.Add(xnn.Attributes[0].Value  + " = " + xnn.Attributes[1].Value );
                }              

        }

Reference:http://dotnetacademy.blogspot.com/2010/10/read-config-file-using-xml-reader.html

回答2:

You can just get a reference to the AppSettings NameValueCollection and iterate as follows:

NameValueCollection settings = System.Configuration.ConfigurationManager.AppSettings;

foreach (string key in settings.AllKeys)
{
   string value = settings[key];
}

Enjoy!