In this blog we will know
when we click node records its related data will be displayed in datagridview.
App.config
<?xml
version="1.0"
encoding="utf-8"
?>
<configuration>
<appSettings>
<add
key="dsn"
value="Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=..\EMP.mdb" />
</appSettings>
</configuration>
Form1.cs
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 Name");
OleDbConnection con =
new OleDbConnection(ConnectionString);
con.Open();
str = "select * from student";
com = new
OleDbCommand(str, con);
OleDbDataReader reader =
com.ExecuteReader();
while (reader.Read())
{
treeView1.Nodes.Add(reader["sname"].ToString());
}
reader.Close();
con.Close();
}
private void
treeView1_AfterSelect(object sender,
TreeViewEventArgs e)
{
OleDbConnection con =
new OleDbConnection(ConnectionString);
con.Open();
str = "select * from student where
sname='" + treeView1.SelectedNode.Text + "'";
com = new
OleDbCommand(str, con);
oledbda = new
OleDbDataAdapter(com);
ds = new
DataSet();
oledbda.Fill(ds, "student");
dataGridView1.DataMember = "student";
dataGridView1.DataSource = ds;
con.Close();
}
}
}