Show Data in Gridview According TreeView

Question

How to use TreeView from database in C# Window Application (Show Child & SubChild With Header)

Satyapriya Nayak · Answer

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"); 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(); } } }

Satyapriya Nayak · Answer

http://www.codeproject.com/Articles/24722/How-to-Create-TreeView-Type-GridView http://kapie.com/2011/drag-and-drop-from-a-treeview-to-a-datagridview

Show Data in Gridview According TreeView

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