Breadcrumb med hj�lp af SiteMapNode og SiteMapProvider

Sun, 07 Oct 2012 16:33:28 GMT

Hej alle,

Jeg fors�ger at lave mig en breacrumb ved hj�lp af et SiteMap og StaticSiteMapProvider i ASP.NET. Indtil videre er det lykkedes mig at n�r jeg er p� forsiden s� bliver forsiden vist i min br�dkrummesti.

Jeg benytter Umbraco som CMS og det betyder at min SiteMapProvider traverser mit indholdstr� for at kunne repr�sentere den tr�struktur mine sider ligger i. P� forsiden virker min br�dkrumme st� fint (den viser Frontpage), men n�r jeg bev�ger mig til en underside af min forside (en child node til frontpage) f�r jeg at vide at CurrentNode ikke er en del af mit sitemap, selvom n�r jeg f�lger "indexeringen " s� bliver den tilf�jet til den interne collection.

Min SiteMapProvider ser ud som f�lgende

CSharp kode

 using System;
 using System.Web;
 using CityBuilder.Model;
 using CityBuilder.WebApplication.Web.SiteMapProviders.SiteMapNodes;
 using umbraco.NodeFactory;
 using umbraco.interfaces;
 
 namespace CityBuilder.WebApplication.Web.SiteMapProviders
 {
     public class ContentSiteMapProvider : StaticSiteMapProvider
     {
         private SiteMapNode _rootSiteMapNode;
         private readonly object _lock = new object();
 
         protected override SiteMapNode GetRootNodeCore()
         {
             return BuildSiteMap();
         }
 
         public override SiteMapNode BuildSiteMap()
         {
             if (_rootSiteMapNode == null)
             {
                 lock(_lock)
                 {
                     if (_rootSiteMapNode != null)
                         return _rootSiteMapNode;
 
                     base.Clear();
 
                     INode umbracoRootNode;
                     _rootSiteMapNode = AddUmbracoRootNode(out umbracoRootNode);
 
                     AddNode(_rootSiteMapNode);
                     AddChildren(umbracoRootNode, _rootSiteMapNode);
                 }
             }
 
             return _rootSiteMapNode;
         }
 
         private void AddChildren(INode umbracoNode, SiteMapNode parentNode)
         {
             foreach (var node in umbracoNode.ChildrenAsList)
             {
                 if (node.NodeTypeAlias.Equals(NodeTypeAlias.Site, StringComparison.OrdinalIgnoreCase))
                 {
                     var currentNode = new SiteSiteMapNode(this, node);
 
                     AddNode(currentNode, parentNode);
                     AddChildren(node, currentNode);
                 }
                 else if (node.NodeTypeAlias.Equals(NodeTypeAlias.Frontpage, StringComparison.OrdinalIgnoreCase))
                 {
                     var currentNode = new FrontpageSiteMapNode(this, node);
 
                     AddNode(currentNode, parentNode);
                     AddChildren(node, currentNode);
                 }
                 else if (node.NodeTypeAlias.Equals(NodeTypeAlias.Contentpage, StringComparison.OrdinalIgnoreCase))
                 {
                     var currentNode = new ContentpageSiteMapNode(this, node);
                     
                     AddNode(currentNode, parentNode);
                     AddChildren(node, currentNode);
                 }
             }
         }
 
         private SiteMapNode AddUmbracoRootNode(out INode umbracoRootNode)
         {
             INode node = new Node(-1);
 
             umbracoRootNode = node;
             return new RootSiteMapNode(this, node);
         }
     }
 }

Min adapter til udskrivning af br�dkrummestien:

CSharp kode

 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Web;
 using System.Web.UI;
 using System.Web.UI.WebControls.Adapters;
 using CityBuilder.WebApplication.Web.SiteMapProviders;
 using CityBuilder.WebApplication.Web.SiteMapProviders.SiteMapNodes;
 
 namespace CityBuilder.WebApplication.Presentation.UserControls
 {
     public class SiteMapProviderAdapter : WebControlAdapter
     {
         protected override void RenderContents(HtmlTextWriter writer)
         {
             var siteMapPath = Control as CityBuilderSiteMapPath;
 
             if (siteMapPath == null)
                 throw new InvalidOperationException("Control is not of type CityBuilderSiteMapPath");
 
             var provider = ((CityBuilderSiteMapPath) (Control)).Provider as ContentSiteMapProvider;
 
             if (provider == null)
                 throw new InvalidOperationException("Could not find a ContentSiteMapProvider.");
 
             var current = provider.CurrentNode;
 
             if (current == null)
                 throw new InvalidOperationException("Current page is not part of the SiteMap.");
 
             var siteMapNodesStack = new Stack<SiteMapNode>();
 
             while (current != null)
             {
                 siteMapNodesStack.Push(current);
 
                 current = current.ParentNode;
             }
 
             foreach (PageSiteMapNode siteMapNode in siteMapNodesStack)
             {
                 writer.RenderBeginTag("ul");
                 writer.RenderBeginTag(HtmlTextWriterTag.Li);
 
                 writer.AddAttribute(HtmlTextWriterAttribute.Href, siteMapNode.Url);
                 writer.RenderBeginTag("a");
                 writer.Write(siteMapNode.NavigationTitle);
                 writer.RenderEndTag();
 
                 writer.RenderEndTag();
                 writer.RenderEndTag();
 
                 Debug.Write("Dette er kun for test.");
             }
         }
     }
 }

Det irreterer mig gr�nsel�st efterh�nden hvorfor den p�st�r den ikke er en del af mit sitemap, n�r det ser ud til den bliver tilf�jet korrekt. Nogen der har nogle forslag?

Edit
Skal lige ogs� n�vne at min provider er registret i web.config'en.

Eksempel p� min egen SiteMapNode type

CSharp kode

 using System.Web;
 using umbraco.interfaces;
 
 namespace CityBuilder.WebApplication.Web.SiteMapProviders.SiteMapNodes
 {
     public class SiteSiteMapNode : PageSiteMapNode
     {
         public SiteSiteMapNode(SiteMapProvider siteMapProvider, INode node) 
             : base(siteMapProvider, node)
         {
         }
     }
 }

CSharp kode

 using System;
 using System.Collections;
 using System.Collections.Specialized;
 using System.Web;
 using CityBuilder.Model;
 using CityBuilder.WebApplication.Core.Umbraco.Extensions;
 using umbraco.interfaces;
 
 namespace CityBuilder.WebApplication.Web.SiteMapProviders.SiteMapNodes
 {
     public abstract class PageSiteMapNode : SiteMapNode
     {
         public PageSiteMapNode(SiteMapProvider siteMapProvider, INode node)
             : base(siteMapProvider, node.NiceUrl)
         {
             Initialize(node);
         }
 
         #region Obsolete constructors
 
         [Obsolete("Use parameter that contains INode instead.")]
         private PageSiteMapNode(SiteMapProvider provider, string key) 
             : base(provider, key)
         {
         }
 
         [Obsolete("Use parameter that contains INode instead.")]
         private PageSiteMapNode(SiteMapProvider provider, string key, string url) 
             : base(provider, key, url)
         {
         }
 
         [Obsolete("Use parameter that contains INode instead.")]
         private PageSiteMapNode(SiteMapProvider provider, string key, string url, string title) 
             : base(provider, key, url, title)
         {
         }
 
         [Obsolete("Use parameter that contains INode instead.")]
         private PageSiteMapNode(SiteMapProvider provider, string key, string url, string title, string description) 
             : base(provider, key, url, title, description)
         {
         }
 
         [Obsolete("Use parameter that contains INode instead.")]
         private PageSiteMapNode(SiteMapProvider provider, string key, string url, string title, string description, IList roles, NameValueCollection attributes, 
             NameValueCollection explicitResourceKeys, string implicitResourceKey) 
             : base(provider, key, url, title, description, roles, attributes, explicitResourceKeys, implicitResourceKey)
         {
         }
 
         #endregion
 
         private void Initialize(INode node)
         {
             NavigationTitle = node.GetPropertyValue(PropertyName.NavigationTitle) ?? node.Name;
             Title = node.GetPropertyValue(PropertyName.PageTitle) ?? node.Name;
             Url = node.NiceUrl;
         }
         
         public string NavigationTitle { get; set; }
     }
 }

Udvikleren.dk - Seneste [sitemapprovider] forum tr�de

Breadcrumb med hj�lp af SiteMapNode og SiteMapProvider