select tree node to display the related gridview

Hi Deva,

Try this...


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace Treeview_Node__Related_data
{
    public partial class Form1 : Form
    {
        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        OleDbDataAdapter oledbda;
        DataSet ds;
        string str;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
           
            treeView1.Nodes.Add("Please select any table");
            treeView1.Nodes.Add("student");
            treeView1.Nodes.Add("employee");
            treeView1.Nodes.Add("product");
        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            OleDbConnection con = new OleDbConnection(ConnectionString);
         
            if (treeView1.SelectedNode.Text == "Please select any table")
            {
            }
            else if (treeView1.SelectedNode.Text == "student")
            {
                con.Open();
                str = "select * from student";
                com = new OleDbCommand(str, con);
                oledbda = new OleDbDataAdapter(com);
                ds = new DataSet();
                oledbda.Fill(ds, "student");
                dataGridView1.DataMember = "student";
                dataGridView1.DataSource = ds;
                con.Close();
                dataGridView1.Visible = true;
                dataGridView2.Visible = false;
                dataGridView3.Visible = false;

            }
            else if (treeView1.SelectedNode.Text == "employee")
            {
                con.Open();
                str = "select * from employee";
                com = new OleDbCommand(str, con);
                oledbda = new OleDbDataAdapter(com);
                ds = new DataSet();
                oledbda.Fill(ds, "employee");
                dataGridView2.DataMember = "employee";
                dataGridView2.DataSource = ds;
                con.Close();
                dataGridView1.Visible = false;
                dataGridView2.Visible = true;
                dataGridView3.Visible = false;
            }
            else if (treeView1.SelectedNode.Text == "product")
            {
                con.Open();
                str = "select * from product";
                com = new OleDbCommand(str, con);
                oledbda = new OleDbDataAdapter(com);
                ds = new DataSet();
                oledbda.Fill(ds, "product");
                dataGridView3.DataMember = "product";
                dataGridView3.DataSource = ds;
                con.Close();
                dataGridView1.Visible = false;
                dataGridView2.Visible = false;
                dataGridView3.Visible = true;
            }

        }
    }
}




Thanks
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