c# - 如何为作为 ListView DataTemplate 一部分的数据网格设置 CellEditEnding 事件？

Question

我在设置 datagrid 事件时遇到问题。
我想使用以下事件在 ListView 中注册数据网格：
CellEditEnding="dataGridInstallationProperties_CellEditEnding"
但是，由于我动态设置了此数据网格的 DataContext，因此应用程序会抛出NulleferenceException

有没有办法在列表视图中获取这个数据网格集合，并在 C# 中为每个数据网格以编程方式设置这个事件？

下面是我的 xaml ：

<ListView x:Name="listViewInstallProperties"
        Height="Auto"
        Width="Auto"
        ItemsSource="{Binding InstallPackage.Features.FeaturesList}"
        BorderBrush="{x:Null}" Foreground="{x:Null}"
        Background="{x:Null}">
<ListView.Resources>
    <DataTemplate x:Key="ExpanderInstallPropsItemTemplate">
        <ScrollViewer VerticalScrollBarVisibility="Auto">
        <Expander x:Name="expanderInstallationProperties" Header="{Binding DisplayName}"
            Visibility="{Binding Path=IsSelected, Converter={StaticResource boolToVis}, Mode=TwoWay}"
            Grid.Column="0" HorizontalAlignment="Left"
                  Margin="0,0,0,-0.001"
                  d:LayoutOverrides="Height, GridBox" Width="600">
            <DataGrid x:Name="dataGridInstallationProperties"  
                     CellEditEnding="dataGridInstallationProperties_CellEditEnding"
                CanUserAddRows="False" AutoGenerateColumns="False"
                ItemsSource="{Binding Path=Properties}"
                Margin="0" RenderTransformOrigin="-1.6,-1.231" Background="White"
                VerticalAlignment="Stretch"
                HorizontalAlignment="Stretch" VerticalContentAlignment="Top"
                d:LayoutOverrides="GridBox" BorderBrush="{x:Null}" RowBackground="{x:Null}">
                <DataGrid.Columns>
                    <DataGridTextColumn Binding="{Binding Description}"
                                        Header="Property"  IsReadOnly="True"/>
                    <DataGridTextColumn Binding="{Binding Value, UpdateSourceTrigger=PropertyChanged}"
                                        Header="Value" />
                    <DataGridTemplateColumn Header="Restore"
                                        CellTemplate="{StaticResource RestoreDefaultPropertyButtonTemplate}" />
                </DataGrid.Columns>
            </DataGrid>
        </Expander>
        </ScrollViewer>
    </DataTemplate>
</ListView.Resources>
<ListView.ItemContainerStyle>
    <Style TargetType="{x:Type ListViewItem}">
        <Style.Triggers>
            <Trigger Property="IsSelected"
                Value="True">
                <Setter Property="Background"
                    Value="{x:Null}" />
                <Setter Property="BorderBrush"
                    Value="{x:Null}" />
            </Trigger>
        </Style.Triggers>
    </Style>
</ListView.ItemContainerStyle>
<ListView.View>
    <GridView>
        <GridViewColumn Header="Extend The Feature To Get Its Related Properties" CellTemplate="{StaticResource ExpanderInstallPropsItemTemplate}" />
    </GridView>
</ListView.View>

谢谢 ！