ASP.NET: Custom dynamically populated site map (SiteMapProvider)

I'm trying to write my first very own SiteMapProvider subclass. It is meant to be populated dynamically using a bunch of different database lookups, much like all of the examples I've found on the web.

However, there are a whole bunch of things that are quite unclear to me. Here are my two first questions:

• Why is StaticSiteMapProvider used in virtually everyone's project inste开发者_Go百科ad of SiteMapProvider? Since the class contains the name "static", I'm getting the impression that it's not as...well, dynamic as I want it.
• Can someone provide me with a super-minimalistic SiteMapProvider subclass which populates the map using only static data, i.e. no database access, etc.?

SiteMapProvider can be tottaly dynamic. For example it can make dynamic lookup just for nodes. In contrast with StaticSiteMapProvider you should know whole structure. So this for you to decide what to choose.

You can look at the XmlSiteMapProvider, this is good example of "static" map provider.

public class CoolMapProvider : StaticSiteMapProvider
{
    public override SiteMapNode BuildSiteMap()
    {
        var root = new SiteMapNode(this, "test", "~/test.aspx");
        base.AddNode(root, null);

        base.AddNode(new SiteMapNode(this, "test-child", "~/test_child.aspx"), root);

        return root;
    }
}

I did not checked this, but should work.