Question

我正在尝试在我的Metro应用程序中使用C＃和XAML SemanticZoom控件绑定，但说实话，我对如何操作感到茫然。这是我到目前为止通过拼凑问题，文章等得到的XAML代码：

<SemanticZoom x:Name="boardZoom" Height="626" Margin="10,132,10,0" VerticalAlignment="Top">
        <SemanticZoom.ZoomedInView>

           <GridView IsSwipeEnabled="True" x:Name="ItemsGridView">

                    <GridView.ItemTemplate>

                        <DataTemplate>
                            <StackPanel Orientation="Horizontal" Margin="10,10,0,0" 
                        HorizontalAlignment="Left" Background="White">
                                <TextBlock Text="{Binding Title}" TextWrapping="Wrap" Width="200" Height="300"
                                    FontFamily="Global User Interface" FontSize="40" Foreground="Black"
                           VerticalAlignment="Center"  HorizontalAlignment="Left"/>

                                <Image Source="{Binding Image}" Height="60" Width="60" 
                       VerticalAlignment="Center" Margin="0,0,10,0" Visibility="{Binding isImage}" />

                                <TextBlock Text="{Binding Category}" TextWrapping="Wrap" Width="200"
                                    FontFamily="Global User Interface" Foreground="Black"
                           VerticalAlignment="Center"  HorizontalAlignment="Left"/>
                            </StackPanel>
                        </DataTemplate>

                    </GridView.ItemTemplate>

                </GridView>
            </SemanticZoom.ZoomedInView>

<!--Didn't include SemanticZoom.ZoomedOutView since I'm still trying to get the ZoomedIn one working first-->

        </SemanticZoom>

我的C＃代码：

        List<PinStore.pin> pins = PinStore.CopyFromStream(response.GetResponseStream()); //returns a list of PinStore.pin objects, which have name, type, Image, isImage, and Category objects
        System.Collections.ObjectModel.ObservableCollection<SemanticZoomed.zoomedIn> toSource = new System.Collections.ObjectModel.ObservableCollection<SemanticZoomed.zoomedIn>(); //should I be using ObservableCollection or something like List<> here?
        foreach (PinStore.pin pin in pins)
        {
            SemanticZoomed.ZoomedIn toAdd = new SemanticZoomed.ZoomedIn(); //class with Title, Image, isImage, and Category objects
            if (pin.type == "text")
            {
                toAdd.Title = pin.name;
                toAdd.Image = null;
                toAdd.isImage = Visibility.Collapsed;
                toAdd.Category = pin.category;
            }
            toSource.Add(toAdd);
        }
        ItemsGridView.DataContext = toSource;

我在XAML / C＃方面没有太多经验，没有结合经验。我没有收到任何错误，但我注意到如果我用ItemsGridView.DataContext = toSource;替换ItemsGridView.ItemsSource = toSource;，则会在GridView中显示一个空白的堆栈面板，而我似乎无法找到填充该错误的方法我指定的标题和类别值。谢谢！

Answer 1

那么你应该首先考虑创建一个ResourceDictionary，这样你就可以保存你的项目风格。然后，您可以将ItemStyle设置为资源字典。

但无论你需要做什么：ItemsGridView.ItemsSource = toSource;如果您不选择在GridView xaml中绑定toSource。

还要确保SemanticZoomed.zoomedIn对象实现INotifyPropertyChanged接口，并正确调用事件。并确保标题，图像，类别等是在编辑时调用事件的公共属性。而且你需要确保pin.Text是一个实际值。 {确保}。

如果您想了解有关数据绑定的更多信息，请查看他们如何在C＃＆amp; amp; Windows 8的XAML {应该是一样的}： http://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh464965.aspx

在C＃和XAML中绑定数据？

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