我在StackPanel中有一个列表框和一个边框,如下所示:
<StackPanel Orientation="Horizontal">
<ListBox>
<ListBoxItem Content="People"/>
<ListBoxItem Content="Animals"/>
<ListBoxItem Content="Cars"/>
</ListBox>
<Border Width="200>
<ContentPresenter/>
</Border>
</StackPanel>当选择列表框中的项目时,我想相应地更改ContentPresenter中的内容,例如,选择人将更改模板以显示与人相关的一系列输入字段,而选择动物将显示与动物相关的一系列字段等-其行为类似于TabControl。
我想我可以通过改变边框中的DataTemplate的DataTrigger来实现这一点,但我不确定如何实现这一点。
有什么建议吗?
谢谢
发布于 2010-10-13 23:20:23
您可以使用DataTrigger切换ContentTemplate,如下所示。
注意,我使用一个名为Name的属性将ObservableCollection绑定到一个简单的对象(事物),并且使用ViewModel将ContentControl的内容绑定到ListBox中的SelectedItem。
<Grid>
<Grid.Resources>
<local:MultiValueConverter x:Key="con" />
<DataTemplate x:Key="PeopleTemplate">
<StackPanel Orientation="Horizontal">
<Label Margin="0,0,5,0" Content="People Name" HorizontalAlignment="Left" Grid.Column="0" />
<TextBox Grid.Column="1" Width="100" Height="25"></TextBox>
<Button Content="OK" Grid.Column="2" />
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="AnimalsTemplate">
<StackPanel Orientation="Horizontal">
<Label Margin="0,0,5,0" Content="Animal Name" HorizontalAlignment="Left" Grid.Column="0" />
<TextBox Grid.Column="1" Width="100" Height="25"></TextBox>
<Button Content="OK" Grid.Column="2" />
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="CarsTemplate">
<StackPanel Orientation="Horizontal">
<Label Margin="0,0,5,0" Content="Car Name" HorizontalAlignment="Left" Grid.Column="0" />
<TextBox Grid.Column="1" Width="100" Height="25"></TextBox>
<Button Content="OK" Grid.Column="2" />
</StackPanel>
</DataTemplate>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Horizontal">
<ListBox ItemsSource="{Binding Things}" SelectedItem="{Binding SelectedThing}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0" Orientation="Horizontal">
<TextBlock Padding="5" Text="{Binding Name}" Margin="0"></TextBlock>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<Border Width="200">
<ContentControl Content="{Binding SelectedThing}">
<ContentControl.ContentTemplate>
<DataTemplate>
<ContentControl Name="cc"
Content="{Binding}"
ContentTemplate="{StaticResource PeopleTemplate}" />
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Path=Name}" Value="People">
<Setter TargetName="cc"
Property="ContentTemplate"
Value="{StaticResource PeopleTemplate}" />
</DataTrigger>
<DataTrigger Binding="{Binding Path=Name}" Value="Animals">
<Setter TargetName="cc"
Property="ContentTemplate"
Value="{StaticResource AnimalsTemplate}" />
</DataTrigger>
<DataTrigger Binding="{Binding Path=Name}" Value="Cars">
<Setter TargetName="cc"
Property="ContentTemplate"
Value="{StaticResource CarsTemplate}" />
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</ContentControl.ContentTemplate>
</ContentControl>
</Border>
</StackPanel>
<Grid>下面是Thing类:
public class Thing
{
public Thing(String name)
{
this.Name = name;
}
public String Name { get; set; }
public static ObservableCollection<Thing> GetThingList()
{
return new ObservableCollection<Thing>(new Thing[3] {
new Thing("People"),
new Thing("Animals"),
new Thing("Cars")
});
}
}https://stackoverflow.com/questions/3922908
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