ComboBox绑定 - Silverlight

Question

我正面临一个小问题。我绑定ComboBox有两个属性。 IDTypeCodes是具有IDTYPDSC和IDTYPCDE属性的集合。 Ome更多的集合是具有IDTYPECDE属性的PCodes。

我想在ComboBox中添加所有IDTYPCDE但是为了显示目的，我正在使用IDTYPDSC。但是SelectedValue将是

当我尝试再次打开wiindow时，应显示

IDTYPECDE和此值。

<ns:GridViewDataColumn>
    <ns:GridViewDataColumn.CellTemplate>                                     
               <DataTemplate> 
                   <ns:ComboBox Margin="8,0" 
                       x:Name = "cmbIDTypeCode" 
                       SelectedValue="{Binding IDTYPECDE,Mode=TwoWay}"
                       Loaded="cmbIDTypeCode_Loaded" /> 
               </DataTemplate> 
    </ns:GridViewDataColumn.CellTemplate> 
</ns:GridViewDataColumn> 

.cs文件============================

  private void cmbIDTypeCode_Loaded(object sender, RoutedEventArgs e) 
        { 
            cmbIDTypeCode = (NetSolControls.ComboBox)sender; 
            cmbIDTypeCode.ItemsSource = IDTypeCodes; 
            cmbIDTypeCode.DisplayMemberPath = "IDTYPDSC"; 
            cmbIDTypeCode.SelectedValuePath = "IDTYPCDE";            
        } 

=============================================== ==========================================

我也试过这个，但问题仍然存在。现在我如何获得cmbIDTypeCode的引用？因为它位于Grid的DataTemplate中。

if（cmbIDTypeCode == null）cmbIDTypeCode = new NetSolControls.ComboBox（）;             绑定bindSelectedValue = new Binding（“IDTYPECDE”）;             bindSelectedValue.Source = Controller.DataContext.PROPOSALAPPLICANT [index] .PROPOSALAPPLICANTIDDETAIL;             绑定bindDisplayMemberPath = new Binding（“IDTYPDSC”）;             bindDisplayMemberPath.Source = IDTypeCodes;             绑定bindSelectedValuePath = new Binding（“IDTYPCDE”）;             bindSelectedValuePath.Source = IDTypeCodes;             bindDisplayMemberPath.Mode = BindingMode.OneWay;             bindSelectedValuePath.Mode = BindingMode.OneWay;             bindSelectedValue.Mode = BindingMode.TwoWay;             cmbIDTypeCode.SetBinding（NetSolControls.ComboBox.DisplayMemberPathProperty，bindSelectedValue）;             cmbIDTypeCode.SetBinding（NetSolControls.ComboBox.SelectedValuePathProperty，bindSelectedValuePath）;             cmbIDTypeCode.SetBinding（NetSolControls.ComboBox.SelectedValueProperty，bindSelectedValue）;

=============================================== ==================在另一种方式累了===========================

object wantedNode = gvIDDetail.FindName（“cmbIDTypeCode”）;返回null。我也试过这种方式，但仍然没有成功。                                                                                                                                                                                                                           

                                    ItemsSource ="{Binding IDTypeCodes.IDTYPECODEInfo}"  
                                                 DisplayMemberPath="IDTYPDSC" 
                                                 SelectedValuePath="IDTYPCDE" 
                        SelectedValue="{Binding PropsoalApplicants.PROPOSALAPPLICANTIDDETAILInfo.IDTYPECDE, Mode=TwoWay}" /> 

                                </DataTemplate> 
                            </ns:GridViewDataColumn.CellTemplate> 
                        </ns:GridViewDataColumn>