wp8 将每个 PivotItem 绑定到不同的列表

Question

我已经使用 Pivot 控件创建了 WP8 应用程序。有 5 个 PivotItems，其中 3 个应该绑定到 3 个列表或一个具有不同过滤数据的列表。如何做到这一点？

XAML:

<phone:Pivot Name="PControl" Grid.Row="1" Style="{StaticResource PivotStyle}">
                <phone:PivotItem>
                    <phone:PivotItem.Header>
                        <Grid Height="80">
                            <TextBlock Text="offer" FontSize="45" Height="80" />
                        </Grid>
                    </phone:PivotItem.Header>
                    <phone:LongListSelector Margin="0,0,0,0" ItemsSource="{Binding lstOffer}">
                        <phone:LongListSelector.ItemTemplate>
                            <DataTemplate>
                                <StackPanel Margin="0,0,0,17">
                                    <TextBlock Text="some binding" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource TextBlockMnuTekst}"/>
                                </StackPanel>
                            </DataTemplate>
                        </phone:LongListSelector.ItemTemplate>
                    </phone:LongListSelector>
                </phone:PivotItem>
  </phone:Pivot>
.
.
.

<phone:PivotItem>
                    <phone:PivotItem.Header>
                        <Grid Height="80">
                            <TextBlock Text="services" FontSize="45" Height="80" />
                        </Grid>
                    </phone:PivotItem.Header>
                    <phone:LongListSelector Margin="0,0,0,0" ItemsSource="{Binding lstServices}">
                        <phone:LongListSelector.ItemTemplate>
                            <DataTemplate>
                                <StackPanel Margin="0,0,0,17">
                                    <TextBlock Text="some binding" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource TextBlockMnuTekst}"/>
                                </StackPanel>
                            </DataTemplate>
                        </phone:LongListSelector.ItemTemplate>
                    </phone:LongListSelector>
                </phone:PivotItem>

C#:

public class clsPivotData
    {
        public string Name { get; set; }
        public List<clsPivotItemList> PivotItemList { get; set; }

        public clsPivotData()
        {
            PivotItemList = new List<clsPivotItemList>();
        }
    }

    public class clsPivotItemList
    {
        public string id { get; set; }
        public string ssubname { get; set; }
        public string visible { get; set; }
        public string icon { get; set; }
        public string itemType { get; set; }
        public string url { get; set; }
        public string desc { get; set; }

    }
    
    public partial class MainPage : PhoneApplicationPage
    {
        public ObservableCollection<clsPivotData> Items { get; set; }
        public static MainPage CurrentMainPage;

        public List<clsPivotData> lstOffer { get; set; }
        public List<clsPivotData> lstServices { get; set; }
        public List<clsPivotData> lstInfo { get; set; }

        // Constructor
        public MainPage()
        {
            InitializeComponent();

            CurrentMainPage = this;

            // Set the data context of the listbox control to the sample data
            DataContext = App.ViewModel;

            lstOffer = new List<clsPivotData>(from i in Items where i.Name == "offer" select i);
            lstServices = new List<clsPivotData>(from i in Items where i.Name == "services" select i);
            lstInfo = new List<clsPivotData>(from i in Items where i.Name == "info" select i);
.
.
.

我在 lstOffer 和 lstServices 中得到了正确的数据，但没有显示加载数据，这不是问题所在。我不知道如何将 TextBlock 从 LongListSelector（Text=some binding）绑定到属性 ssubname，它是 clsPivotItemList class 的属性和 List 是 clsPivotData 的属性 class.

Answer 1

试试这个 <TextBlock Text="{Binding ssubname}" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource TextBlockMnuTekst}"/>

Answer 2

<Grid Datacontext="{Binding lstOffer }">
<phone:LongListSelector Margin="0,0,0,0" ItemsSource="{Binding PivotItemList }">
                        <phone:LongListSelector.ItemTemplate>
                            <DataTemplate>
                                <StackPanel Margin="0,0,0,17">
                                    <TextBlock Text="{Binding ssubname}" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource TextBlockMnuTekst}"/>
                                </StackPanel>
                            </DataTemplate>
                        </phone:LongListSelector.ItemTemplate>
                    </phone:LongListSelector>
</Grid>

Answer 3

我终于找到了答案。我把下一个代码放在 MainViewModel class:

public ObservableCollection<clsPivotData> Items { get; set; }
        
public ObservableCollection<clsPivotData> lstOffer { get; set; }
public ObservableCollection<clsPivotData> lstServices { get; set; }
public ObservableCollection<clsPivotData> lstInfo { get; set; }

// Constructor
  public MainViewModel()
  {
    this.Items = new ObservableCollection<clsPivotData>();

    LoadData();
    lstOffer = Items.Where(o => o.Name == "offer").FirstOrDefault().PivotItems;
    lstServices = Items.Where(o => o.Name == "service").FirstOrDefault().PivotItems;
    lstInfo = Items.Where(o => o.Name == "info").FirstOrDefault().PivotItems;    }

在XAML中我是这样插入ListBox的：

<ListBox Margin="0,0,0,0" ItemsSource="{Binding lstOffer}">
    <ListBox.ItemTemplate>
        <DataTemplate>
             <ItemsControl>
                  <StackPanel Margin="0,0,0,17">
                       <TextBlock Text="{Binding ssubname}" TextWrapping="Wrap" Margin="12,0,12,0" Style="{StaticResource TextBlockMnuTekst30}"/>
                  </StackPanel>
              </ItemsControl>
        </DataTemplate>
   </ListBox.ItemTemplate>
  </ListBox>

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.
.

在以前的解决方案中，lstOffer、lstServices 和 lstInfo 不在 MainVewModel 中，而是在 MainPage 中，并且 MainPage 的 DataContext 被设置为 MainViewModel ViewModel 对象。这个新解决方案给了我预期的结果，这意味着 ListBox 已填充。

wp8 将每个 PivotItem 绑定到不同的列表

wp8 bind every PivotItem to different List

c#

data-binding

pivotitem

windows-phone-8