using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using Oracle.DataAccess.Client; namespace conectaroracle { public partial class Form1 : Form { OracleConnection conn = new OracleConnection("DATA SOURCE=;PASSWORD=root;USER ID=SYS"); public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { try{ conn.Open(); MessageBox.Show("Conectado"); } catch { MessageBox.Show("no conectado"); } } } }