Sharepoint 2010 - webpart treeview无法正常工作

您好我正在使用SharePoint 2010，并在webpart中创建树视图以显示文档库中的项目。此代码不适用于我，它显示在同一网络中的所有内容... 我希望能够指定使用哪个文档库。Sharepoint 2010 - webpart treeview无法正常工作

另外它放入重复节点，所以如果我去编辑页面，它会添加一个重复的，如果我离开编辑模式，它会添加另一个重复。 enter image description here

任何人都可以帮忙吗？

using System; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using Microsoft.SharePoint; 
using Microsoft.SharePoint.Utilities; 
using System.Web; 
using System.IO; 

namespace VisualWebPartProject1.VisualWebPart1 
{ 
    public partial class VisualWebPart1UserControl : UserControl 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 
      SPWeb thisWeb = null; 
      TreeNode node; 
      using (thisWeb = SPContext.Current.Web) 
      { 




       //Add the Web's title as the display text for the tree node, and add the URL as the NavigateUri. 
       node = new TreeNode(thisWeb.Title, null, null, thisWeb.Url, "_self"); 
       //The Visual Web Part has a treeview control called siteStructure. 
       siteStructure.Nodes.Add(node); 
       //Get a reference to the current node, so child nodes can be added in the correct position. 
       TreeNode parentNode = node; 
       //Iterate through the Lists collection of the Web. 


       /* 
       foreach (SPListItem item in myList.Items) 
       { 
        SPFieldUrlValue data = item["Url"] as SPFieldUrlValue; 
        // now you have data.Description, data.Url 
        node = new TreeNode(Path.GetFileName(data.Url), null, null, data.Url, "_self"); 
        parentNode.ChildNodes.Add(node); 

       } 
       */ 



       foreach (SPList list in thisWeb.Lists) 
       { 
        if (!list.Hidden) 
        { 
         node = new TreeNode(list.Title, null, null, list.DefaultViewUrl, "_self"); 
         parentNode.ChildNodes.Add(node); 
        } 
       } 
       foreach (SPWeb childWeb in thisWeb.Webs) 
       { 
        //Call our own helper function for adding each child Web to the tree. 
        addWebs(childWeb, parentNode); 
        childWeb.Dispose(); 
       } 


       siteStructure.CollapseAll(); 

      } 
     } 
     void addWebs(SPWeb web, TreeNode parentNode) 
     { 
      TreeNode node; 
      node = new TreeNode(web.Title, null, null, web.Url, "_self"); 
      parentNode.ChildNodes.Add(node); 
      parentNode = node; 
      foreach (SPList list in web.Lists) 
      { 
       if (!list.Hidden) 
       { 
        node = new TreeNode(list.Title, null, null, list.DefaultViewUrl, "_self"); 
        parentNode.ChildNodes.Add(node); 
       } 
      } 
      foreach (SPWeb childWeb in web.Webs) 
      { 
       //Call the addWebs() function from itself (i.e. recursively) 
       //to add all child Webs until there are no more to add. 
       addWebs(childWeb, parentNode); 
       childWeb.Dispose(); 

      } 
     } 
    } 
}

来源

2012-07-27 omega

尝试的使用语句之前添加此：

If(node.Nodes.Count == 0) { // The rest of your code here }

来源

2012-10-09 03:20:15 youfoobar

添加WebProperties到你的WebPart到能够配置例如，你想改用硬编码的一个图书馆。在此属性中，您可以指定列表名称并读取它以加载此列表。

同时，为了避免在编辑多个插件等请添加代码的Page_Load事件里面里面

if (!Page.IsPostBack) 
{ 
    Your code goes here... 
}

这避免你的代码的执行每次加载甚至投递的页面，这将导致你每次将新节点添加到您的树中。

来源

2015-11-24 19:39:56 STORM

Sharepoint 2010 - webpart treeview无法正常工作

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