根据子元素的数量对 SitemapNodes 进行排序

发布于 2024-10-27 20:11:09 字数 712 浏览 6 评论 0原文

在应用程序中，我正在读取站点地图文件，将其添加到 SiteMapNodeCollection 中，迭代它并根据某些条件呈现结果。

但在传递这些 SiteMapNodeCollection 进行操作之前，我需要根据子节点的数量对节点进行排序（包括是否有子子节点）。我想过使用扩展方法，但对使用相同的方法感到困惑，因为它是一个层次结构集合。

SiteMapDataSourceView siteMapView = (SiteMapDataSourceView)siteMapData.GetView(string.Empty);

//Get the SiteMapNodeCollection from the SiteMapDataSourceView
SiteMapNodeCollection nodes = (SiteMapNodeCollection)siteMapView.Select(DataSourceSelectArguments.Empty);

***//Need to sort the nodes based on the number of child nodes it has over here.***

//Recursing through the SiteMapNodeCollection...
foreach (SiteMapNode node in nodes)
{
//rendering based on condition.
}

可以给我前进的指导。

原文

In an application i am reading from sitemap file adding it on to a SiteMapNodeCollection Iterating through it and rendering the results based on some conditions.

But before passing on these SiteMapNodeCollection for the manipulation i need to sort the nodes based on the number of childnodes(including if any sub child nodes).I thought of using Extension methods but am confused on using the same,as it is a hierarchial collection.

SiteMapDataSourceView siteMapView = (SiteMapDataSourceView)siteMapData.GetView(string.Empty);

//Get the SiteMapNodeCollection from the SiteMapDataSourceView
SiteMapNodeCollection nodes = (SiteMapNodeCollection)siteMapView.Select(DataSourceSelectArguments.Empty);

***//Need to sort the nodes based on the number of child nodes it has over here.***

//Recursing through the SiteMapNodeCollection...
foreach (SiteMapNode node in nodes)
{
//rendering based on condition.
}

could give me guidance on moving ahead.

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微暖i 2024-11-03 20:11:09

您可以编写一个方法来计算指定节点的子节点计数，如下所示：

private static int GetChildNodeCount(SiteMapNode node)
{
    var nodeCount = node.ChildNodes.Count;
    foreach (SiteMapNode subNode in node.ChildNodes)
    {
        nodeCount += GetChildNodeCount(subNode);
    }

    return nodeCount;
}

然后按如下方式使用它：

var orderedNodes = nodes.Cast<SiteMapNode>()
    .OrderBy(n => GetChildNodeCount(n));

foreach (SiteMapNode node in orderedNodes)
{
    //rendering based on condition.
}

You could write a method which calculates a subnodes count for the node specified like this:

private static int GetChildNodeCount(SiteMapNode node)
{
    var nodeCount = node.ChildNodes.Count;
    foreach (SiteMapNode subNode in node.ChildNodes)
    {
        nodeCount += GetChildNodeCount(subNode);
    }

    return nodeCount;
}

and then use it like this:

var orderedNodes = nodes.Cast<SiteMapNode>()
    .OrderBy(n => GetChildNodeCount(n));

foreach (SiteMapNode node in orderedNodes)
{
    //rendering based on condition.
}

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