DataTemplateSelector
是基于XAML的数据绑定的项目类型来更改ItemTemplates
的推荐方式。 DataTemplateSelector
不是内置于WP7中,而是不内置于WP8。你必须在网上找到你喜欢DataTemplateSelector
的版本并使用它。或者只是推出自己的代码,因为它大约有5-10行代码。
在WindowsPhoneGeek上有一篇关于custom DataTemplateSelectors in WP7和wp7nl项目的文章,其文章基于DataTemplateSelector base class。
<ListBox x:Name="listBox" HorizontalContentAlignment="Stretch">
<ListBox.ItemTemplate>
<DataTemplate>
<local:FoodTemplateSelector Content="{Binding}">
<local:FoodTemplateSelector.Healthy>
<DataTemplate>
<StackPanel Orientation="Horizontal" Background="YellowGreen" Width="400" Margin="10">
<Image Source="{Binding IconUri}" Stretch="None"/>
<TextBlock Text="{Binding Name}" FontSize="40" Foreground="Black" Width="280"/>
<TextBlock Text="healty" />
</StackPanel>
</DataTemplate>
</local:FoodTemplateSelector.Healthy>
<local:FoodTemplateSelector.UnHealthy>
<DataTemplate>
<Border BorderBrush="Red" BorderThickness="2" Width="400" Margin="10">
<StackPanel Orientation="Horizontal">
<Image Source="{Binding IconUri}" Stretch="None"/>
<TextBlock Text="{Binding Name}" FontSize="40" Width="280"/>
<Image Source="Images/attention.png" Stretch="None" Margin="10,0,0,0"/>
</StackPanel>
</Border>
</DataTemplate>
</local:FoodTemplateSelector.UnHealthy>
<local:FoodTemplateSelector.NotDetermined>
<DataTemplate>
<StackPanel Orientation="Horizontal" Background="Gray" Width="400" Margin="10">
<Image Source="{Binding IconUri}" Stretch="None"/>
<TextBlock Text="{Binding Name}" FontSize="40" Width="280"/>
<Image Source="Images/question.png" Stretch="None" Margin="10,0,0,0"/>
</StackPanel>
</DataTemplate>
</local:FoodTemplateSelector.NotDetermined>
</local:FoodTemplateSelector>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
如果你正在寻找一个更快速&肮脏的解决方案Prism's DataTemplateSelector不需要C#代码,因为它uses the DataTemplateSelector.Resources collection to handle type mapping。这两个DataTemplateSelector
类只能被复制出来并用于您的应用程序。
1: <UserControl.Resources>
2: <DataTemplate x:Key="SelectorDataTemplate">
3: <prism:DataTemplateSelector Content="{Binding}"
4: HorizontalContentAlignment="Stretch"
5: IsTabStop="False">
6: <prism:DataTemplateSelector.Resources>
7: <DataTemplate x:Key="DataType1">
8: <StackPanel Orientation="Horizontal">
9: <TextBlock Text="{Binding ID}"/>
10: <toolkit:Separator />
11: <TextBlock Text="{Binding Name}" />
12: </StackPanel>
13: </DataTemplate>
14:
15: <DataTemplate x:Key="DataType2">
16: <StackPanel Orientation="Horizontal">
17: <TextBox Text="{Binding Index}" />
18: <toolkit:Separator />
19: <TextBox Text="{Binding Description}" />
20: </StackPanel>
21: </DataTemplate>
22:
23: </prism:DataTemplateSelector.Resources>
24: </prism:DataTemplateSelector>
25: </DataTemplate>
26: </UserControl.Resources>
有很多更DataTemplateSelectors
在那里,其中包括:Odyssey Phone,UIMessage等。
太棒了!我从来没有使用WP7开发,所以我不知道它不是内置的。今天晚些时候我会放弃这个!希望那里有更好的WP8文档! – Javawag
现在已经尝试过了 - 完美的作品,谢谢! – Javawag