语义缩放分组数据绑定和访问单个项目

时间:2012-10-08 08:40:21

标签: c# xaml data-binding windows-8 windows-runtime

我将数据绑定到我的ZoomedOut语义缩放,如下所示:

var result = from title in _allTitles group title by title._titleSubject into grp orderby     grp.Key select grp;
groupedTitlesSource.Source = result;
(semanticZoom.ZoomedOutView as ListViewBase).ItemsSource = groupedTitlesSource.View.CollectionGroups;

我正在使用Group.Key访问密钥,但我也想访问组中的第一项,这是最简单的方法吗?我的Xaml在下面是ZoomedOutView:

            <SemanticZoom.ZoomedOutView>
                <GridView x:Name="zoomedOutGridView" HorizontalAlignment="Center">
                    <GridView.ItemTemplate>
                        <DataTemplate>
                            <Grid Width="210" Height="140" Background="#CC196CFF">
                                <TextBlock
                                    Text="{Binding Group.Key}"
                                    FontFamily="Segoe UI Light"
                                    FontSize="24"
                                    Foreground="White"
                                    VerticalAlignment="Top"/>

                                <!-- Also want to access the first item in the group here -->
                            </Grid>    
                        </DataTemplate>
                    </GridView.ItemTemplate>
                    <GridView.ItemsPanel>
                        <ItemsPanelTemplate>
                            <WrapGrid />
                        </ItemsPanelTemplate>
                    </GridView.ItemsPanel>
                </GridView>
            </SemanticZoom.ZoomedOutView>

任何帮助都会很棒,而且我对此非常陌生这么简单:) 感谢

1 个答案:

答案 0 :(得分:0)

首先,你的Group.Key应该在GridView.GroupStyle中,你的项目应该在GridView.ItemTemplate下。有了它,您将能够访问组项目。