我有三个嵌套课程,Show,Season和Episode,其中一个节目有季节,季节有剧集.
我想绑定两个列表框,以便第一个列出季节,第二个列出该季节的剧集.
我怎样才能做到这一点?我更喜欢在代码中设置它,而不是xaml,但如果你知道如何使用xaml,它总比没有好.
简化的xaml:
和一些相关的代码:
public partial class Window1 : Window { public Data.Show show { get; set; } public Window1() { this.DataContex = show; //Bind shows name to label Binding bindName = new Binding("Name"); ShowName.SetBinding(Label.ContentProperty, bindName); //Bind shows seasons to first listbox Binding bindSeasons = new Binding("Seasons"); Seasons.SetBinding(ListBox.ItemsSourceProperty, bindSeasons); Seasons.DisplayMemberPath = "SeasonNumber"; Seasons.IsSyncronizedWithCurrentItem = true; //Bind current seasons episodes to second listbox Binding bindEpisodes = new Binding("?????"); Episodes.SetBinding(ListBox.ItemsSourceProperty, bindEpisodes); Episodes.DisplayMemberPath = "EpisodeTitle"; } }
任何人都有任何线索如何绑定第二个列表框?
编辑:添加更多细节.
好的,所以假设你有一个Show对象.这里有一系列季节.每个季节都有一系列剧集.然后,您可以将整个控件的DataContext设置为Show对象.
将TextBlock绑定到节目的名称.Text ="{Binding Name"}
将Seasons季节列表框的ItemsSource绑定到Seasons集合.ItemsSource ="{Binding Seasons}"IsSynchronizedWithCurrentItem ="True"
将剧集列表框的ItemsSource绑定到当前Season的剧集集合.ItemsSource ="{Binding Seasons/Episodes}".
假设您的Window的DataContext是Show对象,XAML将是:
所以你的UI元素并不需要名字.此外,将其转换为代码非常简单,而且您走的是正确的道路.您的代码的主要问题是,当您不真正需要时,您正在命名列表框.
假设Season对象有一个名为Episodes的属性,它是Episode对象的集合,我认为它是:
Binding bindEpisodes = new Binding("Seasons/Episodes");