我認爲你應該考慮避免Telerik的類(在我看來,這使得事情在這種情況下有點複雜)。
標準DataTemplateSelector
實施情況如何? 自己實現起來非常簡單!
首先聲明一個 「經典」 實施抽象類DataTemplateSelector
的:
public abstract class DataTemplateSelector : ContentControl
{
public virtual DataTemplate SelectTemplate(object item, DependencyObject container)
{
return null;
}
protected override void OnContentChanged(object oldContent, object newContent)
{
base.OnContentChanged(oldContent, newContent);
ContentTemplate = SelectTemplate(newContent, this);
}
}
然後,你可以自定義DataTemplateSelector
寫你......
public class myTemplateSelector : DataTemplateSelector
{
public DataTemplate Template1 { get; set; }
public DataTemplate Template2 { get; set; }
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
// No template...
if (item == null)
return null;
// Enumeration discriminant:
if (item is BoundTemplateDiscriminantType)
switch ((BoundTemplateDiscriminantType)item)
{
case BoundTemplateDiscriminantType.Type1:
return Template1;
case BoundTemplateDiscriminantType.Type2:
return Template2;
// Not implemented...
default:
throw new NotImplementedException();
}
// Integer discriminant:
else if (item is int)
{
return (int)item > 0 ? Template1 : Template2;
}
// Other discriminants...
else
// Not yet implemented...
throw new NotImplementedException();
}
}
...終於XAML設計(不是通常的ListBoxItem,但在這種情況下是可滾動的內容):
<ScrollViewer>
<ScrollViewer.ContentTemplate>
<DataTemplate>
<utilities:myTemplateSelector Content="{Binding Path=BoundDiscriminant, Mode=OneWay}">
<!--Content of first template...-->
<utils:myTemplateSelector.Template1>
<DataTemplate>
<TextBlock Text={Binding Path=BoundDescription, Mode=OneWay} />
</DataTemplate>
</utils:myTemplateSelector.Template1>
<!--Content of second template...-->
<utils:myTemplateSelector.Template2>
<DataTemplate>
</DataTemplate>
</utils:myTemplateSelector.Template2>
... and so on...
</utilities:myTemplateSelector>
</DataTemplate>
</ScrollViewer.ContentTemplate>
</ScrollViewer>
有了這樣的延遲...但我給你一個答案(我剛剛發現了這個問題!)!也許可以幫助別人... – MAXE