テキストボックスで更新した後にリストボックス項目のテキストを更新する方法はありますか? 可能であればバインディングだけでやりたいです。リストボックスはリストから読み取っていますが、リストは更新されていないため、新しいアイテムをリストに追加しない限り変更されません。ここにコードがあります
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication1"
Title="MainWindow" Height="350" Width="525">
<Grid>
<DockPanel VerticalAlignment="Top" HorizontalAlignment="Left">
<Button Name="dodaj" Width="40" Margin="5" Click="dodaj_Click">Dodaj</Button>
<Button Name="usun" Width="40" Margin=" 5" Click="usun_Click">Usuń</Button>
</DockPanel>
<DockPanel HorizontalAlignment="Left" VerticalAlignment="Center" DataContext="{Binding ElementName=lista, Path=osoba, Mode=TwoWay}">
<ListBox Name="lb" ItemsSource="{Binding}" Width="200" Height="230">
</ListBox>
</DockPanel>
<DockPanel HorizontalAlignment="Right" VerticalAlignment="top">
<WrapPanel>
<StackPanel>
<Label>Imię</Label>
<Label>Nazwisko</Label>
<Label>Email</Label>
<Label>Telefon</Label>
</StackPanel>
<StackPanel DataContext="{Binding ElementName=lb, Path=SelectedItem, UpdateSourceTrigger=LostFocus}" TextBoxBase.TextChanged="zmiana">
<TextBox Width="200" Margin="3" Name="imie" Text="{Binding Path=imie}"></TextBox>
<TextBox Width="200" Name="nazwisko" Text="{Binding Path=nazwisko}"></TextBox>
<TextBox Width="200" Margin="3" Name="email" Text="{Binding Path=email}"></TextBox>
<TextBox Width="200" Name="telefon" Text="{Binding Path=telefon}"></TextBox>
</StackPanel>
</WrapPanel>
</DockPanel>
</Grid>
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
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;
using System.ComponentModel;
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
lista.Add(new dane("imie1", "nazwisko1", "email1", "tel1"));
lista.Add(new dane("imie2", "nazwisko2", "email2", "tel2"));
lb.DataContext = lista;
}
public class dane : INotifyPropertyChanged
{
public dane(string imie, string nazwisko, string email, string telefon)
{
this._imie = imie;
this.nazwisko = nazwisko;
this.osoba = nazwisko + " " + imie;
this.email = email;
this.telefon = telefon;
}
private string _imie;
public string imie
{
set
{
_imie = value;
OnPropertyChanged("Imie");
}
get
{
return _imie;
}
}
public string nazwisko { set; get; }
public string osoba { set; get; }
public string email { set; get; }
public string telefon { set; get; }
public override string ToString()
{
return osoba;
}
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged(string value)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
{
handler(this, new PropertyChangedEventArgs(value));
}
}
}
public ObservableCollection<dane> lista = new ObservableCollection<dane>();
//public List<dane> lista = new List<dane>();
/*public ObservableCollection<dane> lista
{
get { return (ObservableCollection<dane>)GetValue(listaProperty); }
set { SetValue(listaProperty, value); }
}
public static readonly DependencyProperty listaProperty =
DependencyProperty.Register("lista", typeof(ObservableCollection<dane>), typeof(Window), new UIPropertyMetadata(null));
*/
private void dodaj_Click(object sender, RoutedEventArgs e)
{
lista.Add(new dane("...", "", "", ""));
MessageBox.Show(lista[0].ToString());
}
private void usun_Click(object sender, RoutedEventArgs e)
{
lista.RemoveAt(lb.SelectedIndex);
}
}
}