【发布时间】:2012-08-25 22:53:28
【问题描述】:
我正在尝试在我的 Metro 应用程序中使用与 C# 和 XAML SemanticZoom 控件的绑定,但老实说,我不知道该怎么做。这是迄今为止我从问题、文章等中拼凑而成的 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>
还有我的 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,并且在绑定方面零经验。我没有收到任何错误,但我注意到如果我用ItemsGridView.ItemsSource = toSource; 替换ItemsGridView.DataContext = toSource;,GridView 中会出现一个空白堆栈面板,我似乎找不到用标题和我指定的类别值。谢谢!
【问题讨论】:
标签: c# xaml binding microsoft-metro