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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 Oracle.DataAccess.Client;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
string connection_string = "Data Source=My_srv;User Id=My_usr;Password=My_pwd;";
OracleConnection connection = null;
OracleDependency dependency = null;
OracleCommand my_select = null;
OracleCommand my_insert = null;
public Form1()
{
InitializeComponent();
}
private void TB_insert_event(object sender, EventArgs e)
{
if (TB_insert.Text == "Name of your insert")
TB_insert.Clear();
}
private void insert(object sender, EventArgs e)
{
connection = new OracleConnection(connection_string);
my_insert = connection.CreateCommand();
my_insert.CommandText = "INSERT INTO USR_DEV_TRUNK.WPARAM (wpa_codeparam) VALUES ('" + TB_insert.Text + "')";
connection.Open();
my_insert.ExecuteNonQuery();
connection.Close();
}
private void Set_dep(object sender, EventArgs e)
{
OracleDependency.Port = 3048;
connection = new OracleConnection(connection_string);
connection.Open();
my_select = connection.CreateCommand();
my_select.CommandText = "SELECT wpa_codeparam FROM USR_DEV_TRUNK.WPARAM";
dependency = new OracleDependency();
dependency.AddCommandDependency(my_select);
my_select.Notification.IsNotifiedOnce = false;
my_select.ExecuteNonQuery();
dependency.OnChange += new OnChangeEventHandler(on_my_event);
TB_dependency.Text = "The dependency is set, do your insert to see if it works";
connection.Close();
}
public void on_my_event(object obj, OracleNotificationEventArgs arg)
{
TB_dependency.Text = "Yay ! It worked !";
}
} |
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