总结：WPF中模板需要绑定父级别的ViewModel该如何处理

原文:总结：WPF中模板需要绑定父级别的ViewModel该如何处理

     <ListBox ItemsSource="{Binding ClassCollection}">





                            <ListBox.ItemContainerStyle>





                                <Style TargetType="{x:Type ListBoxItem}">





                                    <Setter Property="Height" Value="30"/>





                                    <Setter Property="Template">





                                        <Setter.Value>





                                            <ControlTemplate  TargetType="ListBoxItem">





                                                <Grid>





                                                    <Border x:Name="ItemBackground" 





                                                    Background="{TemplateBinding Background}"  





                                                    BorderBrush="{TemplateBinding BorderBrush}"





                                                    BorderThickness="{TemplateBinding BorderThickness}"/>





 





                                                    <CheckBox Content="{Binding Item2.Name}" IsChecked="{Binding Item1,Mode=TwoWay}">





                                                        <i:Interaction.Triggers>





                                                            <i:EventTrigger EventName="Checked">





                                                                <i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:Control_CodeAutoGeneration}}, Path=DataContext.RelayCommand}" 





                                                                                       CommandParameter="ClassSelectionChanged"/>





                                                            </i:EventTrigger>





 





                                                            <i:EventTrigger EventName="Unchecked">





                                                                <i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:Control_CodeAutoGeneration}}, Path=DataContext.RelayCommand}" 





                                                                                       CommandParameter="ClassSelectionChanged"/>





                                                            </i:EventTrigger>





                                                        </i:Interaction.Triggers>





                                                    </CheckBox>





 





                                                </Grid>





                                            </ControlTemplate>





                                        </Setter.Value>





                                    </Setter>





                                </Style>





                            </ListBox.ItemContainerStyle>





                            <i:Interaction.Triggers>





                                <i:EventTrigger EventName="SelectionChanged">





                                    <i:InvokeCommandAction Command="{Binding RelayCommand}" CommandParameter="ClassSelectionChanged"/>





                                </i:EventTrigger>





                            </i:Interaction.Triggers>





                        </ListBox>

其中、需要在代码

<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:Control_CodeAutoGeneration}}, Path=DataContext.RelayCommand}"   CommandParameter="ClassSelectionChanged"/>

处绑定的父级别，Control_CodeAutoGeneration是我自定义的控件的ViewModel里面的RelayCommand命令，通过如上传递可以调用到父级别的ViewModel的绑定属性或命令