filetree.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections.Generic;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Office.BLL;
using Office.Model;

public partial class File_FileManage_FileTree : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if(!Page.IsPostBack)
        {
            this.TreeView1.ExpandDepth = 2;
            InitMenu();
        }
    }
    //初始化菜单
    private void InitMenu()
    {
        TreeNode root = new TreeNode("文件管理");
        this.TreeView1.Nodes.Add(root);
        CreateTree(root, 0);
    }
    //用递归产生树型结构
    private void CreateTree(TreeNode root,int PID)
    {
        IList<FileInfo> list = FileInfoManager.GetFileInfoByParentId(PID);
        foreach(FileInfo file in list)
        {
            TreeNode node = new TreeNode(file.FileName);
            node.Target = "main";
            node.NavigateUrl = "~/File/FileManage/FileMain.aspx?FID=" + file.FileId;
            node.ImageUrl = file.FileType.FileTypeImage;
            root.ChildNodes.Add(node);
            CreateTree(node, file.FileId);
        }
    }
}