String Formatting Problem in C#

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 StudentManagement
{
    public partial class Form1 : Form
    {
        OleDbConnection vcon = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Users\Touhid\Documents\db1.mdb");
        public Form1()
        {
            vcon.Open();
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            String vsql = "INSERT INTO student VALUES(" + textBox1.Text + ", '" + textBox2.Text + "' ," + textBox3.Text + "," + textBox4.Text + "," + textBox5.Text + ", '" + textBox6.Text  +"')";
            String vsql2 = String.Format("INSERT INTO student VALUES((0), '(1)', (2), (3), (4), '(5)')",int.Parse(textBox1.Text),textBox2.Text, int.Parse(textBox3.Text), int.Parse(textBox4.Text), int.Parse(textBox5.Text),textBox6.Text);

            MessageBox.Show(vsql2);
            /*OleDbCommand vcom= new OleDbCommand(vsql, vcon);
            vcom.ExecuteNonQuery();
            MessageBox.Show("Data Stored Successfully");
           vcom.Dispose();*/
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}