asp.net TreeView綁定數據庫(測試成功)

前臺.aspx文件：

<asp:TreeView ID="tvMenu" runat="server" ImageSet="News" ShowLines="true" ExpandDepth="1" Target="middle" Height="295px" width="145px">
                <ParentNodeStyle Font-Bold="False" ForeColor="Black" />
                <HoverNodeStyle Font-Underline="True" ForeColor="Blue" />
                <SelectedNodeStyle Font-Underline="True" HorizontalPadding="0px" VerticalPadding="0px" ForeColor="Green" ImageUrl="~/images/login_bg.gif" />
                <NodeStyle Font-Names="Tahoma" Font-Size="8pt" ForeColor="DarkBlue" HorizontalPadding="5px" NodeSpacing="0px" VerticalPadding="0px" />
                <RootNodeStyle BorderStyle="Dashed" />
</asp:TreeView>

表：

CREATE TABLE [sa_sysmenu] (
[id] [int] IDENTITY (1, 1) NOT NULL ,
[parent_id] [int] NULL ,
[position] [int] NULL ,
[step] [int] NULL ,
[name] [nvarchar] (255) COLLATE Chinese_PRC_CI_AS NULL ,
[path] [nvarchar] (255) COLLATE Chinese_PRC_CI_AS NULL ,
[description] [nvarchar] (255) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO

後臺.aspx.cs文件：

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

using System.Data.SqlClient;
public partial class admbhbk_Power_PowerInfo : System.Web.UI.Page
{
    SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["SQLConn"].ConnectionString);
    DataSet ds;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            conn.Open();
            this.createDataSet();
            conn.Close();
            this.InitTree(tvMenu.Nodes, "0");
        }
    }
    private DataSet createDataSet()
    {
        ds = new DataSet();
        string sqlstr = "select * from sa_sysmenu";
        SqlDataAdapter cmdSelect = new SqlDataAdapter(sqlstr, conn);
        cmdSelect.Fill(ds, "sa_sysmenu");
        return ds;
       
    }

    protected void InitTree(TreeNodeCollection Nds, string parentID) //用遞歸方法動態生成節點
    {
        DataView dv = new DataView();
        TreeNode tmpNode;
        dv.Table = ds.Tables["sa_sysmenu"];
        dv.RowFilter = "parent_id=" + "'" + parentID + "'";
        foreach (DataRowView drv in dv)
        {
            tmpNode = new TreeNode();
            tmpNode.Value = drv["id"].ToString();
            tmpNode.Text = drv["name"].ToString();
            tmpNode.NavigateUrl = drv["path"].ToString();
            Nds.Add(tmpNode);
            this.InitTree(tmpNode.ChildNodes, tmpNode.Value);
        }
    }

}