항목 템플릿 코드 숨김

Question

itemscontrol의 항목에 대해 생성 된 컨테이너에 액세스하는 방법이 있습니까?

예 : 아래 표시된 ItemTemplate이있는 ItemsControl을 사용하면 컨트롤의 각 항목에 대해 생성 된 DataTemplate 내의 실제 TextBlock에 액세스 할 수 있습니다. (객체는 아니지만 연관된 텍스트 블록).

조회수 /에서 MainPage.xaml :

<phone:PhoneApplicationPage 
    x:Class="PhoneApp1.MainPage" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" 
    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" 
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
    xmlns:vm="clr-namespace:PhoneApp1.ViewModels" 
    xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls. Toolkit" 
    mc:Ignorable="d" 
    FontFamily="{StaticResource PhoneFontFamilyNormal}" 
    FontSize="{StaticResource PhoneFontSizeNormal}" 
    Foreground="{StaticResource PhoneForegroundBrush}" 
    SupportedOrientations="Portrait" Orientation="Portrait" 
    shell:SystemTray.IsVisible="True"> 

    <!--LayoutRoot is the root grid where all page content is placed--> 
    <phone:Pivot> 
     <phone:Pivot.Resources> 
      <vm:PersonViewModel x:Key="ViewModel"/> 
     </phone:Pivot.Resources> 

     <phone:PivotItem> 
      <phone:PivotItem.Header> 
       <TextBlock Text="Pivot"/> 
      </phone:PivotItem.Header> 

      <ItemsControl x:Name="People" DataContext="{StaticResource ViewModel}"  ItemsSource="{Binding People}"> 
       <ItemsControl.ItemTemplate> 
        <DataTemplate> 
         <TextBlock toolkit:SlideInEffect.LineIndex="{Binding PersonLineIndex}"  Text="{Binding Name}"/> 
        </DataTemplate> 
       </ItemsControl.ItemTemplate> 
      </ItemsControl> 
     </phone:PivotItem> 

     <phone:PivotItem> 
      <phone:PivotItem.Header> 
       <TextBlock Text="Empty Pivot"/> 
      </phone:PivotItem.Header> 
     </phone:PivotItem> 
    </phone:Pivot> 

</phone:PhoneApplicationPage> 

조회수/MainPage.xaml.cs를

using Microsoft.Phone.Controls; 

namespace PhoneApp1 
{ 
    public partial class MainPage : PhoneApplicationPage 
    { 
     // Constructor 
     public MainPage() 
     { 
      InitializeComponent(); 
     } 
    } 
} 

ViewModels/PersonViewModel.cs

using PhoneApp1.Models; 
using System.Collections.Generic; 
using System.Collections.ObjectModel; 

namespace PhoneApp1.ViewModels 
{ 
    public class PersonViewModel 
    { 
     public PersonViewModel() 
     { 
      People = new ObservableCollection<Person> 
      { 
       new Person { Name = "Joe" }, 
       new Person { Name = "Jack" }, 
       new Person { Name = "James" }, 
       new Person { Name = "John" } 
      }; 

      PersonLineIndex = new List<int>(); 
      for (int i = 0; i < People.Count; i++) 
      { 
       PersonLineIndex.Add(i); 
      } 
     } 

     public ObservableCollection<Person> People { get; set; } 

     public List<int> PersonLineIndex { get; set; } 
    } 
} 

모델/Person.cs :

namespace PhoneApp1.Models 
{ 
    public class Person 
    { 
     public string Name { get; set; } 
    } 
} 

왜이 액세스 권한이 필요합니까? 예 : 각 텍스트 블록마다 다른 라인 인덱스를 설정하십시오. Person에 "LineIndex"속성을 추가하지 않고 (MVVM을 위반하는 것처럼).

Answer 1

나는 그것을 알아 냈다. 그러한 ItemsControl의 ItemContainerGenerator에 액세스합니다.

public partial class MainPage : PhoneApplicationPage 
{ 
    // Constructor 
    public MainPage() 
    { 
     InitializeComponent(); 

     People.Loaded += People_Loaded; 
    } 

    void People_Loaded(object sender, System.Windows.RoutedEventArgs e) 
    { 
     for (int i = 0; i < People.Items.Count; i++) 
     { 
      var container = People.ItemContainerGenerator.ContainerFromIndex(i); 
      container.SetValue(SlideInEffect.LineIndexProperty, i); 
     } 
    } 
}