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Permanent subnavigation

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hobbis

Posted: Friday, May 16, 2008 9:36:17 AM

Rank: Advanced Member
Groups: Member

Joined: 12/11/2007
Posts: 89
Points: 267

I have a 'Products' page which will have a load of sub pages to represent the products. So, there is a Products node then sub-nodes for each product. I would like to have the sub products permanently display in the left hand web page as a sub navigation. It will behave as though 'Products' is a root node. I'm looking at the 'NavigationLevelTwo' menu which behaves the way I want it to. But instead of using the root node to start from, I want it to start from 'Products' which is a sub node of root. Any idea how to do this?

Here is a reminder of the 'NavigationLevelTwo' class:

Code:

private void Page_Load(object sender, System.EventArgs e)
      {
          try
          {
              if (this.Page is PageEngine)
              {
                  this._page = (PageEngine)this.Page;
                  // Bind level 2 nodes
                  if (this._page.ActiveNode.Level > 0)
                  {
                      this.rptNav2.ItemDataBound += new RepeaterItemEventHandler(rptNav2_ItemDataBound);
                      this.rptNav2.DataSource = this._page.ActiveNode.NodePath[1].ChildNodes;
                      this.rptNav2.DataBind();
                  }
              }
          }
          catch (InvalidCastException ex)
          {
              throw new Exception("This control requires a Page of the type Cuyahoga.Web.UI.Page.", ex);
          }
      }

      private void rptNav2_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
      {
          Node node = (Node)e.Item.DataItem;
          if (node.ShowInNavigation && node.ViewAllowed(this._page.CuyahogaUser))
          {
              HyperLink hpl = (HyperLink)e.Item.FindControl("hplNav2");
              hpl.NavigateUrl = UrlHelper.GetUrlFromNode(node);
              hpl.Text = node.Title;
              UrlHelper.SetHyperLinkTarget(hpl, node);
              if (node.Level <= this._page.ActiveNode.Level && node.Id == this._page.ActiveNode.Trail[node.Level])
              {
                  hpl.CssClass = "subselected";
              }
          }
          else
          {
              e.Item.Visible = false;
          }
      }

Web Developer, Kent - Coolbytes

hobbis

Posted: Monday, May 19, 2008 3:27:55 AM

Rank: Advanced Member
Groups: Member

Joined: 12/11/2007
Posts: 89
Points: 267

Silly me, it was easy really, I used the HierarchicalMenu Control in the end and added a new function to it passing the id of the node that has to appear all times in the sub menu:

Code:

private void BuildNavigationTreeFromSpecificNode(int nodeID)
{
HtmlGenericControl mainList = new HtmlGenericControl("ul");

Node specificNode = new Node();

foreach (Node node in this._page.RootNode.ChildNodes)
{
if (node.Id == nodeID)
{
specificNode = node;
break;
}
}

//specificNode should be set
if (specificNode != null)
{
if (specificNode.ShowInNavigation && specificNode.ViewAllowed(this._page.CuyahogaUser))
{
//don't want specific node to appear, just it's children
//mainList.Controls.Add(BuildListItemFromNode(specificNode));
}
foreach (Node node in specificNode.ChildNodes)
{
if (node.ShowInNavigation && node.ViewAllowed(this._page.CuyahogaUser))
{
HtmlControl listItem = BuildListItemFromNode(node);
if (node.Level <= this._page.ActiveNode.Level
&& node.Id == this._page.ActiveNode.Trail[node.Level]
&& node.ChildNodes.Count > 0)
{
listItem.Controls.Add(BuildListFromNodes(node.ChildNodes));
}
mainList.Controls.Add(listItem);
}
}
if (this._page.CuyahogaUser != null
&& this._page.CuyahogaUser.HasPermission(AccessLevel.Administrator))
{
HtmlGenericControl listItem = new HtmlGenericControl("li");
HyperLink hpl = new HyperLink();
hpl.NavigateUrl = this._page.ResolveUrl("~/Admin");
hpl.Text = "Admin";
listItem.Controls.Add(hpl);
mainList.Controls.Add(listItem);
}
this.plhNodes.Controls.Add(mainList);
}
}

Web Developer, Kent - Coolbytes

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