Access CheckBox in DataGrid (WPF) autocomplete by Sql query

I have an empty DataGrid in a WPF interface. This DataGrid is automatically populated with the results of an SQL query and converts the Boolean values into the CheckBox within the DataGrid. How can I access these CheckBox from C# to capture when their status changes?

private static void RefreshPaths(DataGrid dataGridPaths, string connectionString) {
        string commandText = "SELECT * FROM dbo.Paths";
        using (SqlConnection connection = new SqlConnection(connectionString)) {
            SqlCommand command = new SqlCommand(commandText, connection);

            try {
                connection.Open();
                SqlDataAdapter dataAdapter = new SqlDataAdapter(commandText, connection);
                DataTable dt = new DataTable();
                dataAdapter.Fill(dt);
                dataGridPaths.ItemsSource = dt.DefaultView; // DataGrid REFILL HERE
                connection.Close();
                dataAdapter.Dispose();
                connection.Dispose();
            } catch (Exception ex) {
                MessageBox.Show(ex.Message);
                connection.Close();
                connection.Dispose();
            }
        }