Question

我正在尝试在MVC中创建TreeView文件夹结构。我有类文件，如下所示。

类文件

 public class TreeViewFolder
 {
    public string FolderPath { get; set; }
    public string FolderName { get; set; }
    public List<TreeViewFolder> MyTreeList { get; set; }
 }

我需要在MVC View中呈现上面的列表。我不知道如何在MVC View中呈现单个链表数据。任何帮助将不胜感激。

由于

Answer 1

您可以创建一个扩展方法，使用递归来构建<ul>和<li>元素以显示文件夹的层次结构

public static class FolderTreeExtensions
{
  public static MvcHtmlString FolderTree(this HtmlHelper helper, TreeViewFolder folder)
  {
    return MvcHtmlString.Create(TreeLeaf(folder));
  }

  // Recursive function
  private static string TreeLeaf(TreeViewFolder folder)
  {
    StringBuilder html = new StringBuilder();
    TagBuilder div = new TagBuilder("div");
    div.InnerHtml = folder.FolderName;
    html.Append(div.ToString());
    if (folder.MyTreeList != null)
    {
      foreach (TreeViewFolder subFolder in folder.MyTreeList)
      {
        html.Append(TreeLeaf(subFolder));
      }
    }
    TagBuilder item = new TagBuilder("li");
    item.InnerHtml = html.ToString();
    TagBuilder container = new TagBuilder("ul");
    container.InnerHtml = item.ToString();       
    return container.ToString();
  }
}

然后在您的控制器中，初始化并填充TreeViewFolder的实例，并在视图中

@model TreeViewFolder
....
@Html.FolderTree(Model)

然后根据您的要求设计元素的样式

注意：要么在视图中添加using语句，要么添加对<namespaces>的{{1}}部分的引用

如何在MVC视图页面中单独呈现链接列表

1 个答案: