我需要在ListBox中找到LongListMultiSelector。
<ListBox x:Name="ListBoxName" Width="400">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Bewise:ExpanderControl x:Name="bewiseControl" HeaderText="{Binding Title, Mode=OneWay}" Width="400" >
<Bewise:ExpanderControl.ContentArea>
<toolkit:LongListMultiSelector ItemsSource="{Binding LstProdcuts}" x:Name="LongList">
<toolkit:LongListMultiSelector.ItemTemplate >
<DataTemplate>
<StackPanel >
<TextBlock Text="{Binding Title}" />
</StackPanel>
</DataTemplate>
</toolkit:LongListMultiSelector.ItemTemplate>
</toolkit:LongListMultiSelector>
</Bewise:ExpanderControl.ContentArea>
</Bewise:ExpanderControl>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
我需要访问ListBoxName内的LongList。我需要这个LongList来获取所选项和itemSource或者将项添加到列表的selecteditem