我有 2 个 ListView 的继承者:
public class FileListView : ListView
public class ThumbnailListView : ListView
在 XAML 我有以下代码:
<Window.Resources>
<DataTemplate x:Key="FileListViewTemplate">
<dtc:FileListView/>
</DataTemplate>
<DataTemplate x:Key="ThumbnailViewTemplate">
<dtc:ThumbnailView/>
</DataTemplate>
</Window.Resources>
<Grid>
<CheckBox x:Name="MyCheckBox">
<ContentControl x:Name="MyContentControl" MouseDown="OnContentControlMouseDown">
<DataTemplate>
<ContentPresenter x:Name="AudioPresenter"
ContentTemplate="{StaticResource FileListTemplate}"/>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding ElementName=MyCheckBox, Path=IsChecked}"
Value="true">
<Setter TargetName="AudioPresenter"
Property="ContentTemplate"
Value="{StaticResource ThumbnailViewTemplate}" />
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</ContentControl>
</Grid>
在后面的代码中:
public ListView GetCurrentListView()
{
ListView lv = null;
DataTemplate fileListViewTemplate = base.FindResource("FileListViewTemplate")
as DataTemplate;
DataTemplate thumbnailViewTemplate = base.FindResource("ThumbnailViewTemplate")
as DataTemplate;
ContentPresenter contentPresenter = VisualTreeHelper.GetChild(this.MyContentControl, 0)
as ContentPresenter;
try
{
lv = fileListViewTemplate.FindName("FileListView", contentPresenter)
as ListView;
}
catch (Exception)
{
lv = thumbnailViewTemplate.FindName("ThumbnailView", contentPresenter)
as ListView;
}
return lv;
}
如果记下CheckBox,那么我想看ThumbnailView,否则我想看FileListView。有时我想从后面的代码中获取当前的列表视图。我究竟做错了什么?