wpf - 根据另一个数据网格的选定项填充 DataGrid

Question

我有 2 个数据网格。应根据基于第一个数据网格的选择的选择标准从数据库中获取数据。它需要填充第二个数据网格。

在wpf中有什么最好的方法吗？

这是我的 xaml 的代码：

<cmcCtl:CmcDataGrid x:Name="QueueSearchCampusGrid"
                                            Canvas.Left="0"
                                            Canvas.Top="0"
                                            Width="572"
                                            Height="114"
                                            HorizontalAlignment="Left"
                                            VerticalAlignment="Top"
                                            AutoGenerateColumns="False"
                                            SelectionChanged="CmcDataGrid_OnSelectionChanged"
                                            SelectedItem="{Binding Path=SelectedValue}"
                                            ItemsSource="{Binding ProspectiveCampusList}">
                            <cmcCtl:CmcDataGrid.Columns>
                                <toolkit:DataGridTemplateColumn CanUserReorder="False"
                                                            CanUserResize="False"
                                                            CanUserSort="False"
                                                            ClipboardContentBinding="{x:Null}"
                                                            IsReadOnly="False">
                                    <toolkit:DataGridTemplateColumn.CellTemplate>
                                        <DataTemplate>
                                            <CheckBox IsChecked="{Binding IsSelected, UpdateSourceTrigger=PropertyChanged}" />
                                        </DataTemplate>
                                    </toolkit:DataGridTemplateColumn.CellTemplate>
                                    <toolkit:DataGridTemplateColumn.CellStyle>
                                        <Style TargetType="{x:Type toolkit:DataGridCell}">
                                            <EventSetter Event="UIElement.PreviewMouseLeftButtonUp" Handler="DataGridCell_PreviewMouseLeftButtonUp" />
                                            <EventSetter Event="UIElement.PreviewMouseLeftButtonDown" Handler="DataGridCell_PreviewMouseLeftButtonDown" />
                                        </Style>
                                    </toolkit:DataGridTemplateColumn.CellStyle>
                                </toolkit:DataGridTemplateColumn>
                                <toolkit:DataGridTextColumn Binding="{Binding CampusCode}"
                                                            ClipboardContentBinding="{x:Null}"
                                                            Header="Campus Code" />
                                <toolkit:DataGridTextColumn Binding="{Binding CampusDescription}"
                                                            ClipboardContentBinding="{x:Null}"
                                                            Header="Campus" />
                            </cmcCtl:CmcDataGrid.Columns>
                        </cmcCtl:CmcDataGrid>
                        <CheckBox x:Name="CheckBoxCampusHeadSelect"
                                  Canvas.Left="4"
                                  Canvas.Top="4"
                                  HorizontalAlignment="Left"
                                  VerticalAlignment="Top"
                                  Content=""
                                  Checked="CheckBoxHeadSelect_Checked"
                                  IsThreeState="False"
                                  Unchecked="CheckBoxHeadSelect_Unchecked" />
                    </Canvas>
                    <Canvas Grid.Row="3"
                            Width="572"
                            Height="112"
                            Margin="0,5,0,0"
                            HorizontalAlignment="Left"
                            VerticalAlignment="Top">
                        <cmcCtl:CmcDataGrid x:Name="QueueSearchProgramVersionGrid"
                                            Canvas.Left="0"
                                            Canvas.Top="0"
                                            Width="572"
                                            Height="114"
                                            SelectionMode="Single"
                                            SelectionUnit="FullRow"
                                            HorizontalAlignment="Left"
                                            VerticalAlignment="Top"
                                            ItemsSource="{Binding QueueSearchProgramVersionList}">
                            <cmcCtl:CmcDataGrid.Columns>
                                <toolkit:DataGridTemplateColumn CanUserReorder="False"
                                                            CanUserResize="False"
                                                            CanUserSort="False"
                                                            ClipboardContentBinding="{x:Null}"
                                                            IsReadOnly="False">
                                    <toolkit:DataGridTemplateColumn.CellTemplate>
                                        <DataTemplate>
                                            <CheckBox IsChecked="{Binding IsSelected, UpdateSourceTrigger=PropertyChanged}" />
                                        </DataTemplate>
                                    </toolkit:DataGridTemplateColumn.CellTemplate>
                                    <toolkit:DataGridTemplateColumn.CellStyle>
                                        <Style TargetType="{x:Type toolkit:DataGridCell}">
                                            <EventSetter Event="UIElement.PreviewMouseLeftButtonUp" Handler="DataGridCell_PreviewMouseLeftButtonUp" />
                                            <EventSetter Event="UIElement.PreviewMouseLeftButtonDown" Handler="DataGridCell_PreviewMouseLeftButtonDown" />
                                        </Style>
                                    </toolkit:DataGridTemplateColumn.CellStyle>
                                </toolkit:DataGridTemplateColumn>
                                <toolkit:DataGridTextColumn Width="85"
                                                            Binding="{Binding CampusCode}"
                                                            ClipboardContentBinding="{x:Null}"
                                                            Header="Campus Code" />
                                <toolkit:DataGridTextColumn Width="100"
                                                            Binding="{Binding CampusDescription}"
                                                            ClipboardContentBinding="{x:Null}"
                                                            Header="Campus" />
                                <toolkit:DataGridTextColumn Binding="{Binding ProgramVersionCode}"
                                                            ClipboardContentBinding="{x:Null}"
                                                            Header="Program Code" />
                                <toolkit:DataGridTextColumn Binding="{Binding ProgramVersionDescription}"
                                                            ClipboardContentBinding="{x:Null}"
                                                            Header="Program Version" />
                            </cmcCtl:CmcDataGrid.Columns>
                        </cmcCtl:CmcDataGrid>
                        <CheckBox x:Name="CheckBoxProgramVersionHeadSelect"
                                  Canvas.Left="4"
                                  Canvas.Top="4"
                                  HorizontalAlignment="Left"
                                  VerticalAlignment="Top"
                                  Content=""
                                  Checked="CheckBoxHeadSelect_Checked"
                                  IsThreeState="False"
                                  Unchecked="CheckBoxHeadSelect_Unchecked" />
                    </Canvas>
                </Grid>

这是我的模型类的代码：

public ShoppingSheetQueueSearchClient SelectedValue
{
    get
    { 
        return _selectedValue; 
    }

    set
    {
        if (_selectedValue == value) return;
        _selectedValue = value;
        BindQueueSearchProgramVersionGridControl();
    }
}