How to insert data into Ms Access 2007 using WPF

Xaml.Cs Code :

using System;

using System.Collections.Generic;

using System.Data;

using System.Data.OleDb;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace SampleWpfApp

{

    public partial class MainWindow : Window

    {

        OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=E:\WPFDatabase.accdb");

        public MainWindow()

        {

            InitializeComponent();

            Bind();

        }

        private void btnSave_Click(object sender, RoutedEventArgs e)

        {

            con.Open();

            OleDbCommand cmd = new OleDbCommand("BankTableInsert", con);

            cmd.CommandType = CommandType.StoredProcedure;

            cmd.Parameters.AddWithValue("@BankName", cmbBankName.SelectedIndex);

            cmd.Parameters.AddWithValue("@AccountNo", txtAcNo.Text);

            if (rbtnSavingsAc.IsChecked.Value)

            {

                cmd.Parameters.AddWithValue("@AccountType", rbtnSavingsAc.Content);

            }

            else if (rbtnCurrentAc.IsChecked.Value)

            {

                cmd.Parameters.AddWithValue("@AccountType", rbtnCurrentAc.Content);

            }

            else if (rbtnCreditCard.IsChecked.Value)

            {

                cmd.Parameters.AddWithValue("@AccountType", rbtnCreditCard.Content);

            }

            else

            {

                cmd.Parameters.AddWithValue("@AccountType", rbtnOther.Content);

            }

            cmd.Parameters.AddWithValue("@Balance", txtBalance.Text);

            cmd.Parameters.AddWithValue("@Date", System.DateTime.Now.ToShortDateString());

           int result = cmd.ExecuteNonQuery();

           con.Close();

            if (result > 0)

            {

                MessageBox.Show("Record inserted successfully");

            }

            else

            {

                MessageBox.Show("Error occured, please try again", "Alert");

            }

            Bind();

        }

        private void Bind()

        {

            con.Open();

            OleDbDataAdapter da = new OleDbDataAdapter("select * from BankTable”, con);

            DataTable dt = new DataTable();

            da.Fill(dt);

            BanksetupGrid.ItemsSource = dt.DefaultView;

            con.Close();   

        }  

    }

}

OutPut: