newuser.cs

this application is login form

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 loginform
{
    public partial class newuser : Form
    {
        OleDbConnection con = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\\C#.net projects\\loginform\\loginform\\user.accdb");
        public newuser()
        {
            InitializeComponent();
        }
        
        private void button1_Click(object sender, EventArgs e)
        {
            if (textBox4.Text.Equals(textBox5.Text))
            {
                String q = "Insert into table1 values ('" + textBox3.Text + "','" + textBox4.Text + "')";
                OleDbCommand cmd = new OleDbCommand(q, con);
                con.Open();
                cmd.ExecuteNonQuery();
                con.Close();
                MessageBox.Show("Data inserted Successfully");
            }
            else
            {
                MessageBox.Show("plz varify correct password");
            }
        }
    }
}