Mat*_*len 16 wpf xaml datatemplate
我有一个类似的东西:
public class Section
{
private IEnumerable<Section> sections;
private IEnumerable<KeyValuePair<string, string>> attributes
public string Name {get;set;}
public IEnumerable<Section> Sections
{
get {return sections;}
}
public IEnumerable<KeyValuePair<string, string>> Attributes
{
get {return attributes;}
}
public Section(...)
{
//constructor logic
}
}
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其中包含在另一个类中,我们OtherClass为了参数而调用它,它包装它并在ObjectDataProvider中的WPF中使用.
如您所见,一个实例Section可以包含许多其他实例Section.
在XAML中有没有办法创建一个处理这种递归的模板?
这是我到目前为止所得到的:
<UserControl x:Class="OtherClassEditor"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:OtherClassNS="clr-namespace:NameSpace"
Height="300" Width="300">
<UserControl.Resources>
<ObjectDataProvider ObjectType="{x:Type OtherClassNS:OtherClass}" x:Key="ViewModel" />
<DataTemplate x:Key="listViewAttr">
<WrapPanel>
<TextBlock Text="{Binding Path=Key}"></TextBlock><TextBlock Margin="0,0,4,0">: </TextBlock>
<TextBlock Text="{Binding Path=Value}"></TextBlock>
</WrapPanel>
</DataTemplate>
<DataTemplate x:Key="listViewSection">
<StackPanel>
<WrapPanel Margin="0,0,0,8">
<TextBlock Margin="0,0,4,0">Section:</TextBlock>
<TextBlock Text="{Binding Path=Name}"/>
</WrapPanel>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="listViewData">
<StackPanel>
<WrapPanel Margin="0,0,0,8">
<TextBlock Margin="0,0,4,0">Section: </TextBlock>
<TextBlock Text="{Binding Path=Name}"/>
<ListView DataContext="{Binding Path=Sections}" ItemTemplate="{StaticResource listViewSection}" ItemsSource="{Binding Sections}">
</ListView>
<ListView DataContext="{Binding Path=Attributes}" ItemsSource="{Binding Attributes}" ItemTemplate="{StaticResource listViewAttr}">
</ListView>
</WrapPanel>
</StackPanel>
</DataTemplate>
</UserControl.Resources>
<Grid>
<ListView DataContext="{StaticResource ViewModel}" ItemTemplate="{StaticResource listViewData}" ItemsSource="{Binding Sections}">
</ListView>
</Grid>
</UserControl>
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但我不能得到递归,因为DataTemplate只能引用它之前声明的递归.
这可以在XAML中完成吗?如果是这样,怎么样?这是我在代码背后要做的事吗?
DataTemplates甚至可以走了吗?有没有更好的方法来显示和编辑这些数据?
Mat*_*len 28
如果有人需要在不使用以下情况下看到如何执行此操作HierarchicalDataTemplate:
<UserControl x:Class="OtherClassEditor"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:OtherClassNS="clr-namespace:NameSpace"
Height="300" Width="300">
<UserControl.Resources>
<ObjectDataProvider ObjectType="{x:Type OtherClassNS:OtherClass}" x:Key="ViewModel" />
<DataTemplate x:Key="listViewAttr">
<WrapPanel>
<TextBlock Text="{Binding Path=Key}"></TextBlock>
<TextBlock Margin="0,0,4,0">: </TextBlock>
<TextBlock Text="{Binding Path=Value}"></TextBlock>
</WrapPanel>
</DataTemplate>
<DataTemplate x:Key="listViewData">
<StackPanel>
<WrapPanel Margin="0,0,0,8">
<TextBlock Margin="0,0,4,0">Section: </TextBlock>
<TextBlock Text="{Binding Path=Name}"/>
</WrapPanel>
<ListView ItemTemplate="{DynamicResource listViewData}" ItemsSource="{Binding Sections}" />
<ListView ItemsSource="{Binding Attributes}" ItemTemplate="{StaticResource listViewAttr}" />
</StackPanel>
</DataTemplate>
</UserControl.Resources>
<Grid>
<ListView DataContext="{StaticResource ViewModel}" ItemTemplate="{DynamicResource listViewData}" ItemsSource="{Binding Sections}">
</ListView>
</Grid>
</UserControl>
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这基本上让我得到了我想要的东西.
主要的变化是Dan Bryant建议的:改变ItemTemplate使用动态而不是静态资源的递归对象(Section).
也许我误解了您的场景,但是HierarchicalDataTemplate是您正在寻找的吗?
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