可视化webpart基础开发——TreeView控件读取文档库中的所有文件夹和文件（递归方法读取）

using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

//加入引用
using Microsoft.SharePoint;


namespace TreeViewProject.TreeViewTest
{
    public partial class TreeViewTestUserControl : UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindDoclib();
            }
        }

        /// <summary>
        /// 绑定文档库
        /// </summary>
        private void BindDoclib()
        {
            string url = SPContext.Current.Web.Url;
            #region
            SPSecurity.RunWithElevatedPrivileges(delegate()
            {
                using (SPSite site = new SPSite(url))
                {
                    using (SPWeb web = site.OpenWeb())
                    {
                        foreach (SPList list in web.Lists)
                        {
                            if (list.BaseTemplate != SPListTemplateType.DocumentLibrary)//找到文档库 
                            {
                                continue;
                            }
                            else
                            {
                                if (list.Title == "测试文档库")
                                {
                                    TreeNode node = new TreeNode();
                                    node.Text = list.Title;
                                    node.NavigateUrl = list.DefaultViewUrl;
                                    TreeView1.Nodes.Add(node);
                                    ChildDocFolder(list.RootFolder, node);
                                }
                            }
                        }
                    }
                }

            });
            #endregion
        }

        /// <summary>
        /// 递归方法读取文档库
        /// </summary>
        /// <param name="folder">父文件夹</param>
        /// <param name="currentNode">当前节点</param>
        private void ChildDocFolder(SPFolder folder, TreeNode currentNode)
        {
            string url = SPContext.Current.Web.Url;
            if (folder.SubFolders.Count == 0)// //如果不存在子文件夹就返回，并把文件夹中的文件加到TreeView中 
            {
                foreach (SPFile file in folder.Files)//显示子文件
                {
                    TreeNode node = new TreeNode();
                    node.Text = file.Name;
                    node.NavigateUrl = url + "/" + file.Url;
                    node.ImageUrl = "_layouts/images/" + file.IconUrl;
                    currentNode.ChildNodes.Add(node);
                }
                return;
            }
            else
            {
                foreach (SPFile file in folder.Files)//添加当前文件夹中的文件到TreeView中 
                {
                    TreeNode node = new TreeNode();
                    node.Text = file.Name;
                    node.NavigateUrl = url + "/" + file.Url;
                    node.ImageUrl = "_layouts/images/" + file.IconUrl;
                    currentNode.ChildNodes.Add(node);
                }
                foreach (SPFolder spfolder in folder.SubFolders)
                {
                    if (spfolder.Name == "Forms")//去掉默认的系统文件夹 
                    {
                        continue;
                    }
                    TreeNode node = new TreeNode();
                    node.Text = spfolder.Name;
                    node.NavigateUrl = url + "/" + spfolder.Url;
                    node.ImageUrl ="_layouts/images/folder.gif";
                    currentNode.ChildNodes.Add(node); //添加当前文件夹到TreeView中 
                    ChildDocFolder(spfolder, node);  //展示当前文件夹下面的文件和文件夹
                }
            }
        } 
    }
}