WPF DataGrid.RowDetailsTemplate中包含DataGrid 问题

水墨林兮 2017-01-12 11:47:03

碰到一个问题如下：
外层DataGrid 我称为A，RowDetailsTempalate 中的 DataGrid 我成为B，B中的MuneItem中的Command没法绑定ViewModel中的事件，但是B中通过EnventTrigger可以正常绑定事件并且触发，请教是什么问题？



 <Grid>

        <DataGrid Name="dgvCarTakeAttendance" ItemsSource="{Binding OperationCollection}"

                  HeadersVisibility="All"

                  HorizontalAlignment="Stretch"

                  VerticalAlignment="Stretch"

                  ScrollViewer.VerticalScrollBarVisibility="Auto"

                  ScrollViewer.HorizontalScrollBarVisibility="Auto"

                  Margin="1"

                  CanUserResizeRows="False"

                  LoadingRow="dgvCarInspection_LoadingRow"

                  UnloadingRow="DgvCarTakeAttendance_OnUnloadingRow"

                  Style="{StaticResource DataGridStyle}"

                  RowDetailsVisibilityMode="VisibleWhenSelected">

            <DataGrid.RowDetailsTemplate>

                <DataTemplate>

                    <DataGrid ItemsSource="{Binding ListInstructionsOperation}"

                              HeadersVisibility="Column"

                              SelectionMode="Extended"

                              HorizontalAlignment="Stretch"

                              VerticalAlignment="Stretch"

                              ScrollViewer.VerticalScrollBarVisibility="Auto"

                              ScrollViewer.HorizontalScrollBarVisibility="Auto"

                              Margin="1"

                              CanUserResizeRows="False"

                              Style="{StaticResource DataGridStyle}"

                              MaxHeight="90">

                        <DataGrid.RowHeaderStyle>

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

                                <Setter Property="Background" Value="Transparent" />

                                <Setter Property="BorderThickness" Value="0" />

                            </Style>

                        </DataGrid.RowHeaderStyle>



                        <i:Interaction.Triggers>

                            <i:EventTrigger EventName="SelectionChanged">

                                <cmd:EventToCommand

                                    Command="{Binding DataContext.CarSelectedChangedCommand, RelativeSource={RelativeSource AncestorType=UserControl}}"

                                    CommandParameter="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=DataGrid}}" />

                            </i:EventTrigger>

                        </i:Interaction.Triggers>



                        <DataGrid.Columns>



                            <!--序号-->

                            <DataGridTemplateColumn MinWidth="50" Width="Auto" Visibility="Collapsed">

                                <DataGridTemplateColumn.Header>

                                    <TextBlock Text="序号" HorizontalAlignment="Center"

                                               VerticalAlignment="Center" />

                                </DataGridTemplateColumn.Header>

                                <DataGridTemplateColumn.CellTemplate>

                                    <DataTemplate>

                                        <TextBlock

                                            Text="{Binding Path=Sequence,Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"

                                            Width="100" />

                                    </DataTemplate>

                                </DataGridTemplateColumn.CellTemplate>

                            </DataGridTemplateColumn>



                                <DataGridTemplateColumn.CellTemplate>

                                    <DataTemplate>

                                        <TextBlock

                                            Text="{Binding Path=Feedback,Mode=OneWay, UpdateSourceTrigger=PropertyChanged,Converter={StaticResource MessageToCarResultConverter}}"

                                            Width="150" HorizontalAlignment="Center" />

                                    </DataTemplate>

                                </DataGridTemplateColumn.CellTemplate>

                            </DataGridTemplateColumn>



                            <!-- 空白列可以被选中 -->

                            <!--预留空白行可以被选中-->

                            <DataGridTextColumn Width="*" />

                        </DataGrid.Columns>



                        <DataGrid.ContextMenu>

                            <ContextMenu>

                                <!--移除监控-->

                                <MenuItem Command="{Binding ClearSelectedCarInspectionCommand}"

                                          CommandParameter="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ContextMenu}, Path=PlacementTarget}">

                                    <MenuItem.Header>

                                        <TextBlock Text="{DynamicResource MonitorDataGridWorkbenchRemove}"

                                                   HorizontalAlignment="Left" VerticalAlignment="Center"

                                                   Background="Transparent"

                                                   Foreground="#333" />

                                    </MenuItem.Header>

                                </MenuItem>



                                <!--移除全部-->

                                <MenuItem Command="{Binding ClearAllCarInspectionCommand}">

                                    <MenuItem.Header>

                                        <TextBlock Text="{DynamicResource MonitorDataGridWorkbenchClear}"

                                                   HorizontalAlignment="Left" VerticalAlignment="Center"

                                                   Background="Transparent"

                                                   Foreground="#333" />

                                    </MenuItem.Header>

                                </MenuItem>

                            </ContextMenu>

                        </DataGrid.ContextMenu>

                    </DataGrid>

                </DataTemplate>

            </DataGrid.RowDetailsTemplate>

            <DataGrid.Columns>

                <!--操作Id-->

                <DataGridTextColumn Header="操作Id" Width="Auto" MinWidth="80" Binding="{Binding Path=OperationId}" />

                <!--操作类型-->

                <DataGridTextColumn Header="操作类型" Width="Auto" MinWidth="80" Binding="{Binding Path=OperationType}" />

                <!--操作下发时间-->

                <DataGridTextColumn Header="操作下发时间" Width="Auto" MinWidth="80" Binding="{Binding Path=OperationTime}" />

                <!--空白行可以被选中-->

                <DataGridTextColumn Header="" Width="*" />

            </DataGrid.Columns>

        </DataGrid>