TabControl.ContentTemplate绑定集合不显示，单独抽listview又可以显示

Question

TabControl.ContentTemplate绑定ObservableCollection集合不显示，这是为什么？

Answer 1

Hi,

我看了你的代码，你在TabControl跟ListView绑定了两遍TfMkMeterRecordCollection，我觉得这样写是有问题的，正常都是将ListView里面需要集合放在TabControl的集合里面，看我的例子：

  public partial class MainWindow : Window
    {
        ObservableCollection<TabDe> informationList;
        public MainWindow()
        {
            InitializeComponent();
            informationList = new ObservableCollection<TabDe>();
            informationList.Add(new TabDe("Name1", new List<FilesFolder>() { new FilesFolder() { ffName = "ffName1" } }));
            informationList.Add(new TabDe("Name2", new List<FilesFolder>() { new FilesFolder() { ffName = "ffName2" } }));
            informationList.Add(new TabDe("Name3", new List<FilesFolder>() { new FilesFolder() { ffName = "ffName3" } }));
            informationList.Add(new TabDe("Name4", new List<FilesFolder>() { new FilesFolder() { ffName = "ffName4" } }));
            Actions.ItemsSource = informationList;

        }
    }

    public class TabDe
    {
       public TabDe(string inFolderName, List<FilesFolder> inFilesFolders)
        {
            folderName = inFolderName;
            FF = inFilesFolders;
        }

        public string folderName { get; set; }
        
        private List<FilesFolder> _FF = new List<FilesFolder>();
        public List<FilesFolder> FF
        {
            get { return _FF; }
            set { _FF = value; }
        }
    }

    public class FilesFolder
    {
        public string ffName { get; set; }
    }

  <TabControl   Name="Actions" >
            <TabControl.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding folderName}" />
                </DataTemplate>
            </TabControl.ItemTemplate>
            <TabControl.ContentTemplate>
                <DataTemplate>
                    <ListBox ItemsSource="{Binding FF}">
                        <ListBox.ItemTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Horizontal">
                                    <TextBox Text="{Binding ffName}"  />
                                </StackPanel>
                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>
                </DataTemplate>
            </TabControl.ContentTemplate>
        </TabControl>

Best Regards,

Alex

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