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asp.net treeview数据库绑定（节点添加删除修改）

2010-10-09 16:28 691 查看

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AddKind.aspx.cs" Inherits="MyAdmin_AddKind" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title>无标题页</title>

    <style type="text/css">

        .style1

        {

            width: 800px;

        }

        .style2

        {

            width: 204px;

        }

    </style>

</head>

<body>

    <form id="form1" runat="server">

    <div>



        <table cellpadding="0" cellspacing="0" class="style1">

            <tr>

                <td>

                    </td>

                <td class="style2">

                    <asp:TreeView ID="tvKind" runat="server"

                        onselectednodechanged="tvKind_SelectedNodeChanged" Width="128px">

                    </asp:TreeView>

                </td>

                <td>

                    父节点：<asp:TextBox ID="txtParent" runat="server" Width="223px"></asp:TextBox>

                    <br />

                    <asp:Label ID="Label1" runat="server"></asp:Label>

                    <br />

                    子节点：<asp:TextBox ID="txtChild" runat="server" Width="221px"></asp:TextBox>

                    <br />

                    <br />



                    <asp:Button ID="btnAdd" runat="server" onclick="btnAdd_Click" Text="添加" />



                    <asp:Button ID="btnUpdate" runat="server" onclick="btnUpdate_Click" Text="修改" />



                    <asp:Button ID="btnDelete" runat="server" onclick="btnDelete_Click" Text="删除" />

                </td>

                <td>

                    </td>

            </tr>

        </table>



    </div>

    </form>

</body>

</html>

。。。。。。。。。。。。。。。。。。。。

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

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.Xml.Linq;

using System.Data;

using System.Data.SqlClient;

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

{

    protected void Page_Load(object sender, EventArgs e)

    {

        TVGenNode();

    }

    private void TVGenNode()

    {

        this.tvKind.Nodes.Clear();

        TreeNode tnGen = new TreeNode();

        tnGen.Text = "新闻类别管理";

        tnGen.Value = "F000";

        tnGen.Expanded = true;

        tvKind.Nodes.Add(tnGen);

        TVParentNode(tnGen);

    }

    public void TVParentNode(TreeNode tnParent)

    {

        string sqlStr = System.Configuration.ConfigurationManager.ConnectionStrings["ZYNewsConnStr"].ConnectionString;

        SqlConnection conn = new SqlConnection(sqlStr);

        conn.Open();

        SqlDataAdapter sda = new SqlDataAdapter("select * from mykind where parentid='F000'", conn);

        DataSet ds = new DataSet();

        sda.Fill(ds);

        foreach (DataRow dr in ds.Tables[0].Rows)

        {

            TreeNode parentNode = new TreeNode();

            parentNode.Text = (string)dr["kindName"];

            parentNode.Value = (string)dr["smallId"];

            parentNode.Expanded = true;

            tnParent.ChildNodes.Add(parentNode);

            TVChildNode(parentNode);

        }

    }

    public void TVChildNode(TreeNode tnParent)

    {

        string sqlStr = System.Configuration.Co
4000
nfigurationManager.ConnectionStrings["ZYNewsConnStr"].ConnectionString;

        SqlConnection conn = new SqlConnection(sqlStr);

        conn.Open();

        SqlDataAdapter sda = new SqlDataAdapter("select * from mykind where parentid='" + tnParent.Value + "'", conn);

        DataSet ds = new DataSet();

        sda.Fill(ds);

        foreach (DataRow dr in ds.Tables[0].Rows)

        {

            TreeNode parentNode = new TreeNode();

            parentNode.Text = (string)dr["kindName"];

            parentNode.Value = (string)dr["smallId"];

            parentNode.Expanded =true;

            tnParent.ChildNodes.Add(parentNode);

        }

    }

    protected void btnDelete_Click(object sender, EventArgs e)

    {

        string sqlStr = System.Configuration.ConfigurationManager.ConnectionStrings["ZYNewsConnStr"].ConnectionString;

        SqlConnection conn = new SqlConnection(sqlStr);

        conn.Open();

        SqlCommand comm = new SqlCommand("delete from mykind where smallId='"+Label1.Text+"'",conn);

        comm.ExecuteNonQuery();

        TVGenNode();

    }

    protected void btnUpdate_Click(object sender, EventArgs e)

    {

        string sqlStr = System.Configuration.ConfigurationManager.ConnectionStrings["ZYNewsConnStr"].ConnectionString;

        SqlConnection conn = new SqlConnection(sqlStr);

        conn.Open();

        SqlCommand comm = new SqlCommand("update mykind set kindname='"+txtParent.Text+"' where smallId='" + Label1.Text + "'", conn);

        comm.ExecuteNonQuery();

        TVGenNode();

    }

    protected void btnAdd_Click(object sender, EventArgs e)

    {

        string sqlStr = System.Configuration.ConfigurationManager.ConnectionStrings["ZYNewsConnStr"].ConnectionString;

        SqlConnection conn = new SqlConnection(sqlStr);

        conn.Open();

        SqlDataAdapter sda = new SqlDataAdapter("select smallId from mykind",conn);

        DataSet ds = new DataSet();

        sda.Fill(ds);

        string smallID = "";

        if (ds.Tables[0].Rows.Count == 0)

            smallID = "F000";

        else

            smallID="F"+(Convert.ToInt32(ds.Tables[0].Rows[ds.Tables[0].Rows.Count-1][0].ToString().Substring(1,3))+1);

        SqlCommand comm = new SqlCommand("insert into mykind(smallId,kindname,parentid) values('"+smallID+"','"+txtChild.Text+"','"+Label1.Text+"') ", conn);

        comm.ExecuteNonQuery();

        TVGenNode();

    }

    protected void tvKind_SelectedNodeChanged(object sender, EventArgs e)

    {

        TreeNode treenode = this.tvKind.SelectedNode;

        txtParent.Text = treenode.Text;

        Label1.Text = treenode.Value;

    }

}

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标签： asp.net 数据库 dataset textbox string server

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asp.net treeview数据库绑定 （节点添加 删除 修改）

asp.net treeview数据库绑定（节点添加删除修改）