WPF Datagrid sort indice de l'indice

Question

Je n'arrive pas à comprendre.

J'ai créé exemple de code pour la démo ma question, espérant que quelqu'un peut me diriger vers la réponse ...

La question est une fois que la grille de données est triée, l'ID étiqueté et le nom ne correspond plus à la grille de données sélectionnée article.

J'appriciate votre aide ...

Merci

Jeff

<Window x:Class="dgSortTest.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     Title="dgSortTest" Height="253" Width="403" IsEnabled="True"> 
    <Grid> 
     <DataGrid AutoGenerateColumns="False" Height="212" HorizontalAlignment="Left" Margin="12,2,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="200" SelectionChanged="dataGrid1_SelectionChanged" RowHeaderWidth="0" AreRowDetailsFrozen="False" CanUserAddRows="True" CanUserDeleteRows="True" IsReadOnly="True"> 
      <DataGrid.Columns> 
       <DataGridTextColumn Header="ID" Binding="{Binding ID}"/> 
       <DataGridTextColumn Header="Name" Binding="{Binding Name}"/> 
     </DataGrid.Columns> 
     </DataGrid> 
     <Label Content="Index: " Name="lblIndex" Height="28" HorizontalAlignment="Left" Margin="228,12,0,0" VerticalAlignment="Top" Width="92" /> 
     <Label Content="ID:" Name="lblID" Height="28" HorizontalAlignment="Left" Margin="228,46,0,0" VerticalAlignment="Top" Width="141" IsEnabled="True" /> 
     <Label Content="Name: " Name="lblName" Height="28" HorizontalAlignment="Left" Margin="228,80,0,0" VerticalAlignment="Top" Width="141" /> 
    </Grid> 
</Window> 
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Windows; 
using System.Windows.Controls; 
using System.Windows.Data; 
using System.Windows.Documents; 
using System.Windows.Input; 
using System.Windows.Media; 
using System.Windows.Media.Imaging; 
using System.Windows.Navigation; 
using System.Windows.Shapes; 

namespace dgSortTest 
{ 
    public partial class MainWindow : Window 
    { 
     List<Person> people = new List<Person>(); 
     public MainWindow() 
     { 
      InitializeComponent(); 
      people.Add(new Person() { ID = 0, Name = "Jeff" }); 
      people.Add(new Person() { ID = 1, Name = "Tom" }); 
      people.Add(new Person() { ID = 2, Name = "Andy" }); 
      people.Add(new Person() { ID = 3, Name = "Ken" }); 
      people.Add(new Person() { ID = 4, Name = "Zack" }); 
      people.Add(new Person() { ID = 5, Name = "Emily" }); 
      people.Add(new Person() { ID = 6, Name = "Courtney" }); 
      people.Add(new Person() { ID = 7, Name = "Adam" }); 
      people.Add(new Person() { ID = 8, Name = "Brenda" }); 
      people.Add(new Person() { ID = 9, Name = "Bill" }); 
      people.Add(new Person() { ID = 10, Name = "Joan" }); 
      dataGrid1.ItemsSource = from Person in people select Person; 
     } 

     private void dataGrid1_SelectionChanged(object sender, SelectionChangedEventArgs e) 
     { 
      int index = dataGrid1.SelectedIndex; 
      lblIndex.Content = "Index: " + index.ToString(); 
      lblID.Content = "ID: " + people[index].ID; 
      lblName.Content = "Name: " + people[index].Name; 
     } 
    } 

    public class Person 
    { 
     public int ID { get; set; } 
     public string Name { get; set; } 
    } 
} 

Answer 1

Bonne description de votre problème et court échantillon, +1 pour cela.

Réponse courte, pour ne pas modifier une grande partie de votre implémentation actuelle, vous pouvez le faire.

private void dataGrid1_SelectionChanged(object sender, SelectionChangedEventArgs e) 
{ 
    Person selectedItem = dataGrid1.SelectedItem as Person; 
    int index = dataGrid1.SelectedIndex; 
    lblIndex.Content = "Index: " + index.ToString(); 
    lblID.Content = "ID: " + selectedItem.ID; 
    lblName.Content = "Name: " + selectedItem.Name; 
} 

Cependant, je vous conseille de vous lier directement à SelectedItem. Ensuite, vous n'aurez pas besoin du code derrière EventHandler.

<StackPanel Orientation="Vertical" Margin="228,12,0,0" HorizontalAlignment="Left" VerticalAlignment="Top" Width="92" > 
    <StackPanel Orientation="Horizontal"> 
     <TextBlock Text="Index: "/> 
     <TextBlock Text="{Binding ElementName=dataGrid1, Path=SelectedIndex}"/> 
    </StackPanel> 
    <StackPanel Orientation="Horizontal"> 
     <TextBlock Text="ID: "/> 
     <TextBlock Text="{Binding ElementName=dataGrid1, Path=SelectedItem.ID}"/> 
    </StackPanel> 
    <StackPanel Orientation="Horizontal"> 
     <TextBlock Text="Name: "/> 
     <TextBlock Text="{Binding ElementName=dataGrid1, Path=SelectedItem.Name}"/> 
    </StackPanel> 
</StackPanel>