Загрузка данных с mysql в DataGridComboBoxColumn wpf

using System;
using System.Windows;
using System.Windows.Controls;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
using MySql.Data;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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;
using MySql.Data.MySqlClient;
 
 
namespace conntoSQLServer
{
   
    public partial class MainWindow : Window
    {
        string connectionString;
        MySqlDataAdapter adapter;
        DataTable phonesTable;
 
        
 
        public MainWindow()
        {
            
            InitializeComponent();
 
        }
 
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            connectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
           string sql = "SELECT id, ask, offer, status, name, company, phone, ctime, email, cdate FROM orders";
         /*   string sql = "SELECT o.id, o.ask, o.offer, o.status, o.name, o.company, o.phone, o.ctime, o.email, o.cdate, c.name as city, cl.name as class, rc.name as rclass FROM orders as o INNER JOIN cities as c ON (o.city = c.id) INNER JOIN classes AS cl ON (o.class=cl.id) INNER JOIN rclasses as rc ON (o.rclass=rc.id)"; */
           
            //  string sql2 = "UPDATE orders SET ask = @ask, offer = offer";
            phonesTable = new DataTable();
 
           MySqlConnection connection = null;
            try
            {
                connection = new MySqlConnection(connectionString);
                MySqlCommand command = new MySqlCommand(sql, connection);
                adapter = new MySqlDataAdapter(command);
                
                adapter.Fill(phonesTable);
                phonesGrid.ItemsSource = phonesTable.DefaultView;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                if (connection != null)
                    connection.Close();
            }
 
        }
 
        private void UpdateDB()
        {
            try
            {
                MySqlCommandBuilder comandbuilder = new MySqlCommandBuilder(adapter);
                adapter.Update(phonesTable);
                
            }
 
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Information);
            }
        }
 
        private void updateButton_Click(object sender, RoutedEventArgs e)
        {
            UpdateDB();
        }
 
        private void deleteButton_Click(object sender, RoutedEventArgs e)
        {
            if (phonesGrid.SelectedItems != null)
            {
                for (int i = 0; i < phonesGrid.SelectedItems.Count; i++)
                {
                    DataRowView datarowView = phonesGrid.SelectedItems[i] as DataRowView;
                    if (datarowView != null)
                    {
                        DataRow dataRow = (DataRow)datarowView.Row;
                        dataRow.Delete();
                    }
                }
            }
            UpdateDB();
        }
    }
 
}

//XAML для комбобокса
<StackPanel>
  <DataGrid AutoGenerateColumns="False" Name="myGrid" Margin="10">
     <DataGrid.Columns>
        <DataGridTextColumn Binding="{Binding Path=Name}" />             
        <DataGridComboBoxColumn Width="100" x:Name="Gender" 
                    SelectedValueBinding="{Binding Gender, Mode=TwoWay}"  
                    DisplayMemberPath="{Binding Gender}" />
     </DataGrid.Columns>
  </DataGrid>
  <Button Name="ShowPersonDetails"  
          Content="Show Person Details" 
          Width="200" Height="30"  
          Click="ShowPersonDetails_Click" Margin="10" />
</StackPanel>

//Реализация Comboboxa
public partial class WPFDataGridComboBox : Window
{
    public List<Employee> Employees { get; set; }
    public List<string> Genders { get; set; }
 
    public WPFDataGridComboBox()
    {
        Employees = new List<Employee>()
        {
            new Employee() { Name = "ABC", Gender = "Female" },
            new Employee() { Name = "XYZ" }
        };
 
        Genders = new List<string>();
        Genders.Add("Male");
        Genders.Add("Female");
 
        InitializeComponent();
        myGrid.ItemsSource = Employees;
        Gender.ItemsSource = Genders;
    }
 
    private void ShowPersonDetails_Click(object sender, RoutedEventArgs e)
    {
        foreach (Employee employee in Employees)
        {
            string text = string.Empty;
            text = "Name : " + employee.Name + Environment.NewLine;
            text += "Gender : " + employee.Gender + Environment.NewLine;
            MessageBox.Show(text);
        }
    }
}

//Модель
public class Employee
{
    public string Name { get; set; }
    public string Gender { get; set; }        
}