【虚心求教】DataGrid模板列中comboBOX绑定数据的有关问题

【虚心求教】DataGrid模板列中comboBOX绑定数据的问题
有一张学生信息表，里面有一个性别字段，我存的是0、1 然后这张表的所有信息绑定在一个DataGrid里面，其中性别这个字段需要弄成模板列 里面要放comboBOX做成下拉框可以选择性别的那种，便于修改。可是到combox绑定那里的时候数据显示不出来…… 代码如下：

xaml:---------------------------

  <sdk:DataGrid AutoGenerateColumns="False" Height="340" HorizontalAlignment="Left" Margin="12,107,0,0" Name="stuGrid" VerticalAlignment="Top" Width="500" LoadingRow="stuGrid_LoadingRow">
  <sdk:DataGrid.Columns>

  <sdk:DataGridTemplateColumn Header="选　　择">
   
  <sdk:DataGridTemplateColumn.CellTemplate>
  <DataTemplate>
  <CheckBox Name="checkID"></CheckBox>  
  </DataTemplate>
  </sdk:DataGridTemplateColumn.CellTemplate>
  </sdk:DataGridTemplateColumn>
   
  <sdk:DataGridTextColumn Header="学生编号" Binding="{Binding ID}"></sdk:DataGridTextColumn>
  <sdk:DataGridTextColumn Header="姓　　名" Binding="{Binding StuName}"></sdk:DataGridTextColumn>

   
  <sdk:DataGridTemplateColumn Header="姓　　别">
   

  <sdk:DataGridTemplateColumn.CellEditingTemplate>
  <DataTemplate>  
  <ComboBox Width="80" DisplayMemberPath="Male" Loaded="comMale_Loaded" Name="comMale"></ComboBox>
  </DataTemplate>
  </sdk:DataGridTemplateColumn.CellEditingTemplate>
  </sdk:DataGridTemplateColumn>
   

  <sdk:DataGridTextColumn Header="身份证号" Binding="{Binding IDnumber}"></sdk:DataGridTextColumn>
  </sdk:DataGrid.Columns>
   
   
  </sdk:DataGrid>
   



后台代码：-------------------------------
 public partial class MainPage : UserControl
  {
  public MainPage()
  {
  InitializeComponent();

  this.Loaded += new RoutedEventHandler(MainPage_Load);
  }

  //SolidColorBrush brush = new SolidColorBrush(Colors.Red);

  StudentDomainContext stuContext = new StudentDomainContext(); 

  private LoadOperation<Student> loadStu;

  private List<Student> list { get; set; }

  /// <summary>
  /// 窗体加载
  /// </summary>
  /// <param name="obj"></param>
  /// <param name="args"></param>
  public void MainPage_Load(Object obj,RoutedEventArgs args)
  {
  loadStu = this.stuContext.Load(this.stuContext.GetStudentQuery());

  loadStu.Completed += new EventHandler(loadStu_Completed);
  }


  /// <summary>
  /// 加载完成
  /// </summary>
  /// <param name="obj"></param>
  /// <param name="args"></param>

  private void loadStu_Completed(Object obj, EventArgs args)
  {
   

  stuGrid.ItemsSource = loadStu.Entities;


  }


  /// <summary>
  /// ComboBOX绑定
  /// </summary>
  /// <param name="sender"></param>
  /// <param name="e"></param>
  private void stuGrid_LoadingRow(object sender, DataGridRowEventArgs e)
  {

  }

  /// <summary>
  /// 保存
  /// </summary>
  /// <param name="sender"></param>
  /// <param name="e"></param>
  private void btnSave_Click(object sender, RoutedEventArgs e)
  {
  if (stuContext.HasChanges)
  {
  stuContext.SubmitChanges();
  }
   
  }

  private void comMale_Loaded(object sender, RoutedEventArgs e)
  {

  }
  }

是不是DataGrid里面添加了模板咧后，绑定的时候找不到模板咧里面的comboBOX？ 需不需要再stuGrid.ItemsSource = loadStu.Entities; 这个集合里面抽出所有的性别 然后添加到新的集合里面 然后再给combox绑定？ 求指点……

[解决办法]
这里有几个开源实例可以参考：

http://silverlightchina.net/html/tips/2011/0308/5908.html

http://silverlightchina.net/html/tips/2011/0303/5767.html

http://silverlightchina.net/html/tips/2010/0102/535.html

http://silverlightchina.net/html/developer/silverlight/2009/0927/196.html