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