在日曆和組合框中獲取列表框綁定VIDEO

我拍攝了我的問題，因爲它更容易在視頻中解釋。我希望列表框顯示從預訂表開始的時間，該時間表依賴於預訂表和房間表中的房間的日期，這是可能的。在日曆和組合框中獲取列表框綁定VIDEO

這裏是視頻鏈接：Video of Problem

這裏是生成的XAML：

<CollectionViewSource x:Key="bookingsViewSource" d:DesignSource="{d:DesignInstance {x:Type local:Booking}, CreateList=True}"/> 
    <CollectionViewSource x:Key="roomsViewSource" d:DesignSource="{d:DesignInstance {x:Type local:Room}, CreateList=True}"/> 
    <CollectionViewSource x:Key="roomsBookingsViewSource" Source="{Binding Bookings, Source={StaticResource roomsViewSource}}"/> 
    <CollectionViewSource x:Key="bookingsBookingsViewSource" Source="{Binding Bookings, Source={StaticResource bookingsViewSource}}"/>

這是電網：

<Grid x:Name="Grid" SizeChanged="Grid_SizeChanged" Margin="0,0,-0.4,-0.2" DataContext="{StaticResource bookingsViewSource}"  >

這是日曆：

<Calendar x:Name="MainCalendar" Margin="10,135.2,231.8,0" Grid.Row="2" ToolTip="Select a date" 
DisplayDateStart="2013-01-01" DisplayDateEnd="2020-01-01" FirstDayOfWeek="Monday" Height="177" 
VerticalAlignment="Top" RenderTransformOrigin="0.5,0.5" SelectedDatesChanged="datechanged" 
DisplayDate="{Binding SelectedDate, RelativeSource={RelativeSource Self}}" SelectedDate=" 
{Binding Date, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true}" >

這對組合框：

<ComboBox x:Name="roomnameComboBox" Grid.Column="1" DisplayMemberPath="Room.Roomname" 
HorizontalAlignment="Left" Height="27" ItemsSource="{Binding}" Margin="3,5,0,0" Grid.Row="0" 
VerticalAlignment="Center" Width="120">

這是列表框：

<ListBox x:Name="listrow" Grid.Column="1" Margin="3.2,1.2,1.8,0" Grid.Row="2" 
DisplayMemberPath="Timebegan" SelectionChanged="listrow_SelectionChanged" ItemsSource="{Binding 
Source={StaticResource bookingsBookingsViewSource}}"/>

這裏是生成的C＃

private void Bookings_Loaded(object sender, RoutedEventArgs e) 
    { 
     var allensCroftEntities1 = new WpfApplication7.AllensCroftEntities1(); 

     // Load data into Bookings. You can modify this code as needed. 
     var bookingsViewSource = ((CollectionViewSource)(this.FindResource("bookingsViewSource"))); 
     var bookingsQuery = this.GetBookingsQuery(allensCroftEntities1); 
     bookingsViewSource.Source = bookingsQuery.Execute(MergeOption.AppendOnly); 

     // Load data into Rooms. You can modify this code as needed. 
     var roomsViewSource = ((CollectionViewSource)(this.FindResource("roomsViewSource"))); 
     var roomsQuery = this.GetRoomsQuery(allensCroftEntities1); 
     roomsViewSource.Source = roomsQuery.Execute(MergeOption.AppendOnly); 
    } 


    private ObjectQuery<Booking> GetBookingsQuery(AllensCroftEntities1 allensCroftEntities1) 
    { 
     var bookingsQuery = allensCroftEntities1.Bookings; 

     // To explicitly load data, you may need to add Include methods like below: 
     // bookingsQuery = bookingsQuery.Include("Bookings.Client"). 
     // For more information, please see http://go.microsoft.com/fwlink/?LinkId=157380 
     // Update the query to include Room.Bookings data in Bookings. You can modify this code as needed. 
     bookingsQuery = bookingsQuery.Include("Room.Bookings"); 

     // Returns an ObjectQuery. 
     return bookingsQuery; 
    } 

    private ObjectQuery<Room> GetRoomsQuery(AllensCroftEntities1 allensCroftEntities1) 
    { 
     var roomsQuery = allensCroftEntities1.Rooms; 

     // Update the query to include Bookings data in Rooms. You can modify this code as needed. 
     roomsQuery = roomsQuery.Include("Bookings"); 

     // Returns an ObjectQuery. 
     return roomsQuery; 
    }

編輯

這是什麼當我使用你的代碼時，你有沒有一個想法爲什麼？順便說一句，這是沒有where命令。 booking query