WPF 把数据绑定到下拉列表

[px372265205]

 <DataGrid x:Name="BagInfo" ItemsSource="{Binding AdditionalList,Mode=TwoWay}" Height="auto"  AutoGenerateColumns="False" SelectionMode="Single"  SelectionUnit="Cell"   CanUserAddRows="False"
                                    ColumnHeaderHeight="30"     CanUserReorderColumns="False"   ColumnWidth="SizeToCells"       
                CanUserDeleteRows="False" CanUserSortColumns="False"
                AlternatingRowBackground="#f6f6f6"
                AlternationCount="2"    EnableColumnVirtualization="False" EnableRowVirtualization="False">
                            
                            <DataGrid.ContextMenu>
                                <ContextMenu>
                                    <MenuItem Header="复制整行" Click="CopyRowMenuItem_Click" />
                                    <MenuItem Header="复制单元格" Click="CopyCellMenuItem_Click" />
                                    <MenuItem Header="导出Excel" Click="ExportExcelMenuItem_Click" />
                                </ContextMenu>
                            </DataGrid.ContextMenu>
                            <DataGrid.Columns>
                                <DataGridTextColumn Header="姓名" Binding="{Binding Passengername}" IsReadOnly="True" />
                                <DataGridTextColumn Header="服务类型" Binding="{Binding AdditionalType}"  MinWidth="100"/>
                                <DataGridTextColumn Header="数量" Binding="{Binding CurrentStyle}"  MinWidth="100"/>
                                <DataGridTextColumn Header="价格" Binding="{Binding CurrentParty}"  MinWidth="100"/>
                                <DataGridTemplateColumn Header="购买" MinWidth="80">
                                    <DataGridTemplateColumn.CellTemplate>
                                        <DataTemplate>
                                            <CheckBox x:Name="AdditionalALL" IsChecked="True"  Click="cbAdditional_Click" />
                                        </DataTemplate>
                                    </DataGridTemplateColumn.CellTemplate>
                                </DataGridTemplateColumn>
                            </DataGrid.Columns>
                        </DataGrid>

上述代码所示的数量现要求改用下拉框显示

 foreach (Service oService in oFlightSegment.Service)
                                                        {
                                                            additional.CurrentParty = oService.Price;
                                                            additional.CurrentStyle = oService.Descriptions;
                                                            additional.MarkupStyle.Add(oService.Descriptions);
                                                            additional.ApplicableParty.Add(oService.Price);
                                                            additional.ApplicableBag.Add(oService.Currency);
                                                            additional.TotalQuantity.Add(oService.TotalQuantity);
                                                        }

CurrentParty 为现在显示的单个价格，需要把LIST类型的MarkupStyle用下拉列表的方式显示在数量上，应该怎么改。

[exception92]

在Columns 中添加

  <DataGridTemplateColumn Header="列名称" Width="*">
                            <DataGridTemplateColumn.CellTemplate>
                                <DataTemplate>
                                    <ComboBox x:Name="myCombobox" ItemsSource="{Binding 集合名称}"></ComboBox>
                                </DataTemplate>
                            </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>