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  • TreeView绑定无限层级关系类

    protected void Page_Load(object sender, EventArgs e)
    {
    if (!IsPostBack)
    {
    Bind_TV(TreeView1.Nodes);
    }
    }
    #region 添加父节点
    ///
    /// 添加父节点
    ///
    ///
    private void Bind_TV(TreeNodeCollection tree)
    {
    //先添加第一级父节点
    uint id = Convert.ToUInt32(Session["ID"]);//登陆人id
    string sqlmcount = "select * from account where status=1 and id='" + id + "'";
    DataTable Trdtmcount = MySqlDbHelper.GetDataTable(sqlmcount, null);
    if (Trdtmcount.Rows.Count > 0)
    {
    TreeNode tn = new TreeNode();
    tn.Value = Trdtmcount.Rows[0]["id"].ToString();
    tn.Text = Trdtmcount.Rows[0]["nickname"].ToString();
    tree.Add(tn);
    BindSon(Convert.ToUInt32(Trdtmcount.Rows[0]["id"]), tn.ChildNodes);//根据父节点添加子节点
    }
    }
    #endregion
     
    #region 递归添加子节点
    ///
    /// 递归添加子节点
    ///
    ///
    ///
    private void BindSon(uint fatherid, TreeNodeCollection tree)
    {
    string sqlMancount = "select id,nickname from account where masterid=" + fatherid + ";";
    DataTable sonDT = MySqlDbHelper.GetDataTable(sqlMancount, null);
     
    DataView dv = new DataView(sonDT);
    foreach (DataRowView item in dv)
    {
    //判断此人id 是否有下属
    if (sonDT.Rows.Count > 0)//有
    {
    TreeNode sontn = new TreeNode();
    sontn.Value = item["id"].ToString();
    sontn.Text = item["nickname"].ToString();
    tree.Add(sontn);
    BindSon(Convert.ToUInt32(item["id"]), sontn.ChildNodes);
    }
    }
    }
    #endregion
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  • 原文地址:https://www.cnblogs.com/hww9011/p/3669193.html
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