using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;



namespace Compound
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
builder.IntegratedSecurity = true;

string att ="AttachDbFileName=" + Application.StartupPath + "\\Database1.mdf;Integrated Security=true;Database=Database1;";
}

}
}

is this correct connection?
how can i manipulate my database, such adding, delete, update my record

tnx