隐藏地图ASP.NET节点TreeView控件 [英] Hiding ASP.NET SiteMap nodes in TreeView control

问题描述

我有我的所有节点的地图。我使用的链接到网站地图导航TreeView控件。现在，我想从出现在树视图隐藏某些节点。是否有可能做到这一点？

I have a SiteMap with All my nodes. I'm using a TreeView control which is linked to the SiteMap for navigation. Now I would like to hide certain nodes from appearing on the TreeView. Is it possible to do this?

推荐答案

是的，这是绝对有可能。我们做的方式，它是一个自定义的IsPhantom属性添加到网站地图所示，我们不希望节点（以及各种其他地方也是如此）：

Yes, it's definitely possible. The way we do it is to add a custom "IsPhantom" attribute to the nodes we don't want shown in the sitemap (and in various other places too):

<siteMapNode url="~/Welcome.aspx" title="Welcome" description="" isPhantom="true" />

然后在网站地图控制，请使用以下code，除去具有IsPhantom属性节点：

Then in the sitemap control, use the following code to remove nodes that have the "IsPhantom" attribute:

protected void Page_Load(object sender, EventArgs e)
{
    TreeView1.TreeNodeDataBound += new TreeNodeEventHandler(TreeView1_TreeNodeDataBound);              
    SiteMapSource.Provider = this.CurrentProvider;
}

protected void TreeView1_TreeNodeDataBound(object sender, TreeNodeEventArgs e)
{
    SiteMapNode thisMapNode = (SiteMapNode)e.Node.DataItem;
    TreeNode parentTreeNode = e.Node.Parent;

    if (thisMapNode["isPhantom"] != null && thisMapNode["isPhantom"].ToLower().Equals(bool.TrueString.ToLower()) && parentTreeNode != null)
        parentTreeNode.ChildNodes.Remove(e.Node);
}

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