CSDN一样，多级的可以删除和添加的动态树

zheteng_001 2011-07-15 07:37:32

CSDN一样，多级的可以删除和添加的动态树。删除和添加，改变数据库中的值。请问这样的树怎么做，有没有这样的Demo或是实例？？？

...全文

389 14 打赏收藏转发到动态举报

写回复

用AI写文章

14 条回复

切换为时间正序

请发表友善的回复…

发表回复

子夜__ 2011-07-17

打赏
举报

删除和添加，改变数据库中的值

简单的treeview 增删改查。可以满足不？

zheteng_001 2011-07-17

打赏
举报

一会试试

sswp7 2011-07-17

打赏
举报

[Quote=引用 12 楼 wxr0323 的回复:]
思路

加载的

C# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class TreeView……
[/Quote]

就是啊，++++++

子夜__ 2011-07-17

打赏
举报

思路

加载的

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;





public partial class TreeView : System.Web.UI.Page

{

    public List<ModelTree> TreeList = null;

    protected void Page_Load(object sender, EventArgs e)

    {

        if (Session["TreeData"] == null)

        {

            TreeList = new List<ModelTree>(){  

          new ModelTree(){TId="0001",TName="董事会",IsParent=1 },

          new ModelTree(){TId="0002",TName="监事会",IsParent=1 },

          new ModelTree(){TId="0003",TName="工会",IsParent=1 },

          new ModelTree(){TId="000101",TName="生产科",IsParent=0 },

          new ModelTree(){TId="000102",TName="地质科",IsParent=0 },

          new ModelTree(){TId="000201",TName="测量科",IsParent=0 },

          new ModelTree(){TId="000301",TName="工会干事科",IsParent=0 }

        };

            Session["TreeData"] = TreeList;

        }

        else

        {

            TreeList = Session["TreeData"] as List<ModelTree>;

        }

        this.Tv1.Nodes.Clear();

        this.Tv1.Nodes.Add(new TreeNode() { Text = "总部门" });

        InitTree(TreeList, "000", this.Tv1.Nodes[0]);



    }

    int count = 0;

    public void InitTree(List<ModelTree> list, string ParentId, TreeNode Ptn)

    {

        List<ModelTree> lmt = new List<ModelTree>();

        lmt = list.Where(N => N.TId.ToString().Contains(ParentId.ToString()) && N.TId != ParentId).ToList();

        if (count == 0)

        {

            lmt = lmt.Where(I => I.IsParent == 1).ToList();

        }

        if (lmt.Count > 0)

        {

            count++;

            foreach (ModelTree mt in lmt)

            {

                TreeNode Tn = new TreeNode();

                Tn.Text = mt.TName + "    <a href='NodeAdd.aspx?Type=add&TID=" + mt.TId.ToString() + "\'><font color='red'>添加节点</font></a>"

                    + "    <a href='NodeAdd.aspx?Type=upd&TID=" + mt.TId.ToString() + "\'><font color='black'>更新节点</font></a>";

                Tn.Value = mt.TId.ToString();

                Ptn.ChildNodes.Add(Tn);

                InitTree(list, mt.TId.ToString(), Tn);

            }

        }

    }

}

操作的



using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;







public partial class NodeAdd : System.Web.UI.Page

{

    string type = string.Empty;

    string TID = string.Empty;

    List<ModelTree> lt = new List<ModelTree>();

    protected void Page_Load(object sender, EventArgs e)

    {

        lt = Session["TreeData"] as List<ModelTree>;

        try

        {

            type = Request.QueryString["type"].ToString();

            TID = Request.QueryString["TID"].ToString();

        }

        catch (NullReferenceException err)

        {

            throw err;

        }

        if (type.ToString() == "upd")

        {

            this.Txt_TID.ReadOnly = true;

            this.Btn_Cmd.Text = "Update";

            Btn_Cmd.Click += new EventHandler(Btn_UPD_Click);

        }

        else

        {

            this.Txt_TID.ReadOnly = true;

            this.Btn_Cmd.Text = "Insert";

            Btn_Cmd.Click += new EventHandler(Btn_ADD_Click);

            this.Txt_TID.Text = (Convert.ToInt32(lt.FindAll(N => N.TId.Contains(TID)).Max(I => I.TId)) + 1).ToString().PadLeft(TID.Length + 2, '0');



        }



    }

    protected void Btn_UPD_Click(object sender, EventArgs e)

    {

       //Update

       //取list.find 然后用值替换

        Session["TreeData"] = lt;

        Response.Redirect("TreeView.aspx");

    }

    protected void Btn_ADD_Click(object sender, EventArgs e)

    {   

        //insert

        //list.add方法

        Session["TreeData"] = lt;

        Response.Redirect("TreeView.aspx");



    }

}

实体的

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;



/// <summary>

///ModelTree 的摘要说明

/// </summary>

[Serializable]

public class ModelTree

{

    public ModelTree()

    { }



    private string _TId;



    public string TId

    {

        get { return _TId; }

        set { _TId = value; }

    }

    private string _TName;



    public string TName

    {

        get { return _TName; }

        set { _TName = value; }

    }

    private int _IsParent;



    public int IsParent

    {

        get { return _IsParent; }

        set { _IsParent = value; }

    }

}