如何在Wpf中的代码隐藏中获取XamComboEditor的项目源代码权限

我正在努力解决一个问题。我有一个

XamComboEditor

，我想知道运行时代码中该编辑器的MVVM源属性

<ig:XamComboEditor x:Name="Country"   EmptyText="Select ..." DisplayMemberPath="CountryName" SelectedValuePath="CountryCode" PreviewLostKeyboardFocus="Country_PreviewLostKeyboardFocus"
             ItemsSource="{Binding Path=DataCountry}" IsEnabled="{Binding IsEdit,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}"
             Grid.Row="0"  SelectedItem="{Binding SelectedCountry, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Grid.Column="1" Width="200" Height="40" />

---

如何获取MVVM属性名该

GetBindingExpression

方法需要一个

DependencyProperty

：

var be = Country.GetBindingExpression(XamComboEditor.ItemsSourceProperty);
if (be != null && be.ParentBinding != null)
...

var be = Country.GetBindingExpression(XamComboEditor.ItemsSourceProperty);
if (be != null && be.ParentBinding != null)
...