Does anyone have experience creating SQL-based ASP.NET site-map providers?
I have the default XML file web.sitemap
working properly with my Menu and SiteMapPath controls, but I'll need a way for the users of my site to create and modify pages dynamically.
I need to tie page viewing permissions into the standard ASP.NET
membership system as well.
A site map (or sitemap) is a list of pages of a web site accessible to crawlers or users. It can be either a document in any form used as a planning tool for Web design, or a Web page that lists the pages on a Web site, typically organized in hierarchical fashion.
HTML Sitemap Example Just like in the XML sitemap example, an HTML sitemap lists out all the pages you want to be indexed. HTML sitemaps are multipurpose. They're usually made to look just like a regular page on your site and include a navigation menu, footer, and everything else you might expect to see on a page.
The SiteMapPath control basically is used to access web pages of the website from one webpage to another.
The Jeff Prosise version from MSDN magazine works pretty well, but it has a few flaws:
AddNode
freaks out with links to external sites on your menu (www.google.com, etc.)
Here's my fix in BuildSiteMap()
:
SiteMapNode node = GetSiteMapNodeFromReader(reader); string url = node.Url; if (url.Contains(":")) { string garbage = Guid.NewGuid().ToString(); // SiteMapNode needs unique URLs node.Url = "~/dummy_" + garbage + ".aspx"; AddNode(node, _root); node.Url = url; } else { AddNode(node, _root); }
SQLDependency
caching is cool, but if you don't want to make a trip to the DB everytime your menu loads (to check to see if the dependency has changed) and your menus don't change very often, then why not use HttpRuntime.Cache
instead?
public override SiteMapNode RootNode { get { SiteMapNode temp = (SiteMapNode)HttpRuntime.Cache["SomeKeyName"]; if (temp == null) { temp = BuildSiteMap(); HttpRuntime.Cache.Insert("SomeKeyName", temp, null, DateTime.Now.AddHours(1), Cache.NoSlidingExpiration); } return temp; } }
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