[英]How do I set the Selector.IsSelected attached property to ListBox items in code?
Reference to WPF 4 Unleashed page 281: "Selector also supports two attached properties that can be applied to individual items". 请参考WPF 4 Unleashed页面281:“选择器还支持两个可以应用于单个项目的附加属性”。
<ListBox Name="listBox1">
<sys:String>Fred</sys:String>
<sys:String Selector.IsSelected="True">Wilma</sys:String> <- Error
<ListBoxItem Selector.IsSelected="True">
<sys:String>Barney</sys:String>
</ListBoxItem>
</ListBox>
Seems I can't apply Selector.IsSelected to the second item because it isn't a DependencyObject is that right? 似乎我不能将Selector.IsSelected应用于第二个项目,因为它不是DependencyObject是吗? Can't do it from code either.
也不能通过代码来完成。
Another question, if I want to add strings to the Items collection in XAML is there a way to separate them without wrapping them inside <sys:String></sys:String>
? 另一个问题,如果我想将字符串添加到XAML中的Items集合中,有没有一种方法可以将它们分开而不将它们包装在
<sys:String></sys:String>
?
What can I say 我能说什么
1) Yes you're correct you can only attach an attached property to a DependencyObject
. 1)是的,您是正确的,您只能将附加属性附加到
DependencyObject
。 An alternative would be to use <ListBox SelectedIndex="1"> ...
一种替代方法是使用
<ListBox SelectedIndex="1"> ...
2) You have to wrap the strings in something, but it could be: 2)您必须将字符串包装在某些东西中,但是可能是:
<sys.String>Fred</sys.String>
<ListBoxItem>Fred</ListBoxItem>
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