0

请有人帮忙。我无法弄清楚如何从服务器加载 Dynatree。我没有得到一棵树，而是得到“加载错误！（错误）”我已经阅读了文档的每一部分并阅读了数百个 stackoverflow 类型的答案，但仍然不明白，所以我希望有人能告诉我该怎么做。

这就是我所拥有的：

看法

@{
  Layout = null;
}
<!DOCTYPE html>
<html>
<head>
  <title>LoadAjax</title>
  <script src="../../Scripts/jquery-1.7.1.js" type="text/javascript"></script>
  <script src="../../Scripts/jquery-ui-1.8.16.js" type="text/javascript"></script>
  <script src='../../Scripts/jquery.cookie.js' type="text/javascript"></script>
  <link rel='stylesheet' type='text/css' href='../../Content/skin/ui.dynatree.css' />
  <script src='../../Scripts/jquery.dynatree.js' type="text/javascript"></script>
  <script type="text/javascript">
    $(function () {
      $("#tree").dynatree({
        initAjax: { url: "/LoadAjax/GetNodes" }
      });

    });    
  </script>
</head>
<body>
  <div id="tree"></div>
</body>
</html>

控制器

  public ActionResult GetNodes()
    {
      var n1 = new DynaNode { title = "Node 1", key = "k1", isLazy = false };
      var n2 = new DynaNode { title = "Node 2", key = "k2", isLazy = false };
      var n3 = new DynaNode { title = "Node 3", key = "k3", isLazy = false };
      var nodeArray = new List<DynaNode> {n1, n2, n3};
      return Json(nodeArray);
    }

班级

  public class DynaNode
  {
    public string title { get; set; }
    public bool isFolder { get; set; }
    public bool isLazy { get; set; }
    public string key { get; set; } 
  }
4

2 回答 2

6

好的，我发现了问题。我很尴尬地承认这是一个初学者的错误。

看法

initAjax: {
  type: "POST", // This was needed
   url: "/DynaTree/GetNodes"
}

控制器

[HttpPost] // This was needed
public JsonResult GetNodes(string key)
于 2011-12-23T08:22:56.133 回答
0

请运行此解决方案：

return Json(nodeArray, JsonRequestBehavior.AllowGet);
于 2015-10-23T18:47:46.353 回答