olivermode的部落格

An Example Code From

http://stackoverflow.com/questions/19169184/binding-is-not-working-with-data-template-in-data-template/19192808#19192808

   <Expander Header="{Binding}" Content="{Binding}">
                <Expander.HeaderTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="Order " />
                            <TextBlock Text="{Binding DataContext.Id, RelativeSource={RelativeSource FindAncestor, AncestorType=Expander}}" />
                        </StackPanel>
                    </DataTemplate>
                </Expander.HeaderTemplate>
                <Expander.ContentTemplate>
                    <DataTemplate>
                        <ItemsControl ItemsSource="{Binding Items}">
                            <ItemsControl.ItemTemplate>
                                <DataTemplate>
                                    <Expander Content="{Binding}">
                                        <Expander.HeaderTemplate>
                                            <DataTemplate>
                                                <TextBlock Text="{Binding DataContext.Material.Name, RelativeSource={RelativeSource FindAncestor, AncestorType=Expander}}" />
                                            </DataTemplate>
                                        </Expander.HeaderTemplate>
                                        <Expander.ContentTemplate>
                                            <DataTemplate>
                                                <TextBlock Text="{Binding DataContext.Material.Description, RelativeSource={RelativeSource FindAncestor, AncestorType=Expander}}" />
                                            </DataTemplate>
                                        </Expander.ContentTemplate>
                                    </Expander>
                                </DataTemplate>
                            </ItemsControl.ItemTemplate>
                        </ItemsControl>
                    </DataTemplate>
                </Expander.ContentTemplate>
            </Expander>