WPF:将 DataGrid 放入 ComboBox

Question

在 WPF 中，如何将 DataGrid 放在 ComboBox 中以显示多列？像下面这样的东西似乎没有做任何事情:

<ComboBox>
    <ItemsPanelTemplate>
        <DataGrid>
            <DataGrid.Columns>
                <DataGridTextColumn Binding="{Binding customerName}" />                 
                <DataGridTextColumn Binding="{Binding billingAddress}" />
            </DataGrid.Columns>
        </DataGrid>
    </ItemsPanelTemplate>
</ComboBox>

Answer 1

<ComboBox Width="150" Height="30" Name="cb">
            <ComboBox.ItemTemplate>
                <DataTemplate>
                    <DataGridRow DataContext="{Binding}" Height="30" Width="150">
                        <DataGridRow.Template>
                            <ControlTemplate>
                                <Grid> 
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition/>
                                        <ColumnDefinition Width="5"/>
                                        <ColumnDefinition/>
                                    </Grid.ColumnDefinitions>
                                    <TextBlock Text="{Binding customerName}" Margin="2"></TextBlock>
                                    <Border  BorderBrush="Black" BorderThickness="1" Grid.Column="1" Margin="2"></Border>
                                    <TextBlock Grid.Column="2" Text="{Binding billingAddress}" Margin="2"></TextBlock>
                                </Grid>

                            </ControlTemplate>
                        </DataGridRow.Template>

                    </DataGridRow>
                </DataTemplate>
            </ComboBox.ItemTemplate>
        </ComboBox>