Data missing from Access database after added using textboxes [duplicate]

So, I'm trying to make a record keeping app where user puts data through C# textboxes and is able to access them via DataGrid. When I insert data via textboxes and I click Submit (Unesi), data insertion goes well and all data is visible in Data Grid. However, after restarting appication, data is missing from both the DataGridView and Access Database even though I have Binding function.

This is my Binding function:

 private void BindDataGrid()
    {
        using (myConnection = new OleDbConnection(myConnectionString))
        {
            myConnection.Open();

            using (myOleDbDataAdapter = new OleDbDataAdapter())
            {
                DataSet myDataSet = new DataSet();

                myOleDbDataAdapter.SelectCommand = new OleDbCommand("SELECT * FROM SVIRKE", myConnection);
                myOleDbDataAdapter.Fill(myDataSet, "Svirke");

                bsSvirke.DataSource = myDataSet;
                bsSvirke.DataMember = "Svirke";
            }
            myConnection.Close();
        }
       // ClearTextBoxes();
    }

This is my Submit button code:

 private void txtSave_Click(object sender, EventArgs e)
    {
        //if (!String.IsNullOrEmpty(txtCompanyName.Text) && !String.IsNullOrEmpty(txtPhone.Text))
        //{
            using (myConnection = new OleDbConnection(myConnectionString))
            {
                myConnection.Open();
                try
                {
                    //string mySqlString = "UPDATE Shippers SET CompanyName = @CompanyName, Phone = @Phone WHERE ShipperID = @ID";
                    string mySqlString = "INSERT INTO Svirke (Naslov, Datum, Lokacija, [Kontakt osoba], [Kontakt broj], Pogodba, Zarada, Komentar) VALUES (@Naslov, @Datum, @Lokacija, @Kontaktosoba, @Kontaktbroj, @Pogodba, @Zarada, @Komentar)" ;
                  //SqlCommand MyCommand = new SqlCommand("INSERT INTO Products (Product_Name, Product_Price) Values (@ProductName, @productPrice)", myConnection);

                    OleDbCommand myCom = new OleDbCommand(mySqlString, myConnection);
                    myCom.Parameters.AddWithValue("@Naslov", textBox1.Text);
                    myCom.Parameters.AddWithValue("@Datum", dateTimePicker1.Text);
                    myCom.Parameters.AddWithValue("@Lokacija", textBox2.Text);
                    myCom.Parameters.AddWithValue("@Kontaktosoba",  textBox3.Text);
                    myCom.Parameters.AddWithValue("@Kontaktbroj",  textBox4.Text);
                    myCom.Parameters.AddWithValue("@Pogodba", textBox5.Text);
                    myCom.Parameters.AddWithValue("@Zarada", textBox6.Text);  //dataGridViewShippers.SelectedRows[0].Cells[0].Value.ToString()
                    myCom.Parameters.AddWithValue("@Komentar", richTextBox1.Text);
                    myCom.ExecuteNonQuery();
                    MessageBox.Show("Uspješan unos svirke");


                }
                catch (Exception ex)
                {

                    MessageBox.Show(ex.Message, "Svirka neuspješno unešena", MessageBoxButtons.OK);
                }
                myConnection.Close();
            }

            BindDataGrid();
        //}
    }

So, how can I make data stay in DataGrid and in Access database for good?