Represents a collection of Binding objects attached to a single binding target property.
XAML
<Window x:Class="WpfApplication4.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525"
xmlns:local="clr-namespace:WpfApplication4">
<Window.Resources>
<local:NameConvertor x:Key="nameConvertor"></local:NameConvertor>
</Window.Resources>
<Grid>
<Grid>
<TextBlock HorizontalAlignment="Left" Margin="20,30,0,0" TextWrapping="Wrap" Text="First Name"
VerticalAlignment="Top"/>
<TextBox x:Name="txtFirstName"
HorizontalAlignment="Left" Height="23" Margin="86,27,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
<TextBlock HorizontalAlignment="Left" Margin="20,68,0,0"
TextWrapping="Wrap" Text="Last Name" VerticalAlignment="Top"/>
<TextBox x:Name="txtLastName"
HorizontalAlignment="Left" Height="23" Margin="86,65,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
<TextBlock HorizontalAlignment="Left" Margin="20,110,0,0"
TextWrapping="Wrap" Text="Full Name" VerticalAlignment="Top"/>
<TextBox x:Name="txtLastName_Copy" HorizontalAlignment="Left" Height="23" Margin="86,107,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="267">
<TextBox.Text>
<MultiBinding Converter="{StaticResource
nameConvertor}" UpdateSourceTrigger="PropertyChanged">
<Binding ElementName="txtFirstName" Path="Text" />
<Binding ElementName="txtLastName" Path="Text" />
</MultiBinding>
</TextBox.Text>
</TextBox>
</Grid>
</Grid>
</Window>
C#
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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 WpfApplication4
{
public class NameConvertor : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return String.Concat(values[0], ",", values[1]);
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
{
return (value as string).Split(',');
}
}
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}
}
