一个非常有用的webpart--文档列表添加文件夹树

代码很简单：

// test code by [email protected]
//  2008-11-19
//
//
using  System;
using  System.Collections;
using  System.Text;
using  sharepoint  =  Microsoft.SharePoint.WebControls ;
using  wss  =  Microsoft.SharePoint.WebPartPages;
using  System.Web.UI.WebControls  ;
using  System.Web.UI;
using  System.Web.UI.Design;
using  System.Runtime.InteropServices;
using  System.Web.UI.WebControls.WebParts;
using  System.Drawing;
using  System.ComponentModel;
using  Microsoft.SharePoint;
using  Microsoft.SharePoint.WebControls;

namespace  ThinkingSoft
{
    [Guid( " D55A1423-B38E-4c2e-9303-C234D7B7453E " )]
     public   class  TreeListViewWebPart : wss.WebPart                
    {
         private   string  _ListUrl  =   " http://jyserver:9000/000/Forms/AllItems.aspx "  ;
        [WebBrowsable]
        [PersonalizableAttribute]
        [DisplayName( " 列表Url " )]
         public   string  ListUrl
        {
             get  {  return  _ListUrl; }
             set  { _ListUrl  =  value; }
        }
        
         protected   override   void  CreateChildControls()
        {
             base .CreateChildControls();
             try
            {
                SPList list  =  SPContext.Current.Web.GetList(_ListUrl);

                SPView view  =  list.DefaultView;

                SPFolder f  =  list.RootFolder;

                TreeView tree  =   new  TreeView();
                tree.ShowLines  =   true ;

                 string  viewUrl  =  Page.Request.RawUrl;

                 if  (viewUrl.IndexOf( " ? " )  !=   - 1 )
                    viewUrl  =  viewUrl.Split( ' ? ' )[ 0 ];

                viewUrl  +=   " ?RootFolder= " ;

                 string  currentUrl  =  Page.Request.QueryString[ " RootFolder " ];

                 this .buildSub(viewUrl, f, tree.Nodes);

                addHtml( " <table width='100%' border='1'><tr><td width='20%' valign='top'> " );

                 this .Controls.Add(tree);

                addHtml( " </td><td  valign='top'> " );
                 this .Controls.Add( new  LiteralControl(view.RenderAsHtml()));
                addHtml( " </td></table> " );
            }
             catch  (Exception ex)
            {
                addHtml(ex.Message);                
            }

        }
         void  addHtml(  string  html )
        {
             this .Controls.Add( new  LiteralControl(html));
        } 
         // 创建文件夹树
         void  buildSub(  string  viewUrl , SPFolder root , TreeNodeCollection nodes )
        {
             foreach  (SPFolder f  in  root.SubFolders)
            {
                 if  (f.Name.ToLower()  ==   " forms " )  continue ;

                TreeNode n  =   new  TreeNode();
                n.Text  =  f.Name;
                n.NavigateUrl  =  viewUrl  +  f.Url;

                nodes.Add(n);

                buildSub( viewUrl , f , n.ChildNodes );
            }
        }       
    }
}