绑定到ListBox中的ListBox [英] Binding to a ListBox in a ListBox

问题描述

大家好，

我试图将一个小的电视指南应用程序放在一起，但是绑定到查询的信息时遇到了一些麻烦.

计划要有一个ListBox，其中每个项目都包含一个图像和/或频道名称，以及另一个ListBox(仅用于确认，ListBox项目中的一个ListBox)，其中将包含该频道的所有即将上映的电视节目. br/>
我发现了与我想做的事情非常相似的事情，但是我似乎无法使它正常工作，有人能看到我做错了吗?

Hello All,

I am trying to put together a small TV Guide Application and I am having some trouble Binding to the queried information.

The plan is to have a ListBox where each Item contain an Image and/or the Channel Name and another ListBox (just to confirm, that''s a ListBox in a ListBox Item) which will contain all the upcoming TV programs for that channel.

I found something very similar to what I''d like to do but I can''t seem to get it to work, can anybody see what I''m doing wrong?

<ListBox x:Name="TVGuideListBox">
 <ListBox.ItemTemplate>
  <DataTemplate>
   <StackPanel>
    <DockPanel>
     <TextBlock MinWidth="160" Text="{Binding Path=Channel.ChannelName}" DockPanel.Dock="Left" />
       <ListBox ItemsSource="{Binding Path=Program}" BorderThickness="0">
                                <ListBox.ItemsPanel>
                                    <ItemsPanelTemplate>
                                        <StackPanel Orientation="Horizontal" IsItemsHost="True"/>
                                    </ItemsPanelTemplate>
                                </ListBox.ItemsPanel>
                                <ListBox.ItemTemplate>
                                    <DataTemplate>
                                            <TextBlock Text="{Binding Path=Title}" />
                                    </DataTemplate>
                                </ListBox.ItemTemplate>
                            </ListBox>
                        </DockPanel>
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>
</ListBox>

namespace TVGuide
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    /// 


    public partial class MainWindow : Window
    {
        TVDataContext TVDC = new TVDataContext();

        public MainWindow()
        {
            InitializeComponent();
            LoadChannels();
        }

        public class Channel
        {
            public string ChannelName { get; set; }
            public string ChannelID { get; set; }
        }

        public class Program
        {
            public string StartTime { get; set; }
            public string StopTime { get; set; }
            public string ChannelID { get; set; }
            public string Title { get; set; }
            public string Description { get; set; }
        }

        public class exChannels
        {
            public List<Channel> ChannelInfo { get; set; }
            public List<Program> ProgramInfo { get; set; }

            public exChannels(List<Channel> ch, List<Program> prog)
            {
                ChannelInfo = ch;
                ProgramInfo = prog;
            }
        }

        public void LoadChannels()
        {
            DateTime time = DateTime.Now.ToUniversalTime();              // Use current time
            string format = "yyyy MM d HH mm";    // Use this format
            string timevalue2 = Regex.Replace(time.ToString(format), @"[\D]", "");
            decimal currenttime_dec = (Convert.ToDecimal(timevalue2) * 100);

            XDocument xmlDoc = XDocument.Load(@"C:\iceguide.xml");

            var ChannelsQuery = (from s in TVDC.tv_CHANNELs
                                 orderby s.channel_ID
                                 select new Channel
                                 {
                                     ChannelName = s.channel_NAME,
                                     ChannelID = s.guide_ID
                                 }).ToList<Channel>();

            foreach (var s in ChannelsQuery)
            {
                var ProgramQuery = (from c in xmlDoc.Descendants("programme")
                                    where c.Attribute("channel").Value == s.ChannelID
                                    select new Program
                                    {
                                        StartTime = c.Attribute("start").Value,
                                        StopTime = c.Attribute("stop").Value,
                                        ChannelID = c.Attribute("channel").Value,
                                        Title = c.Element("title").Value,
                                        Description = c.Element("desc").Value
                                    }).ToList<Program>();

                exChannels exChannel = new exChannels(ChannelsQuery, ProgramQuery);

                TVGuideListBox.Items.Add(exChannel);
            }

        }

        
    }
}

我在树错树上吠叫吗?任何帮助，甚至是正确方向的帮助，都将不胜感激.

预先谢谢您，

亲切的问候，
Alex

Am I barking up the wrong tree? Any help or even a kick in the right direction would be greatly appreciated.

Thank you in advance,

Kind Regards,
Alex

推荐答案

与其尝试将ListBox放在另一个ListBox中，不如将其按Channel分组在一个ListBox中.搜索如何使用CollectionViewSource对ListBox中的项目进行分组. 列表框分组，排序，小计和可折叠区域 [ ^ ]是一个好的开始.祝你好运！

Instead of tryin to put a ListBox inside another ListBox, you should rather Group the items in one ListBox by Channel. Search for how to group items in a ListBox using a CollectionViewSource. ListBox Grouping, Sorting, Subtotals and Collapsible Regions[^] is agood start. Good luck!

这篇关于绑定到ListBox中的ListBox的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！