Visual Studio/WPF > TreeView 내의 두 속성(예: OS 및 codename)의 Binding 표시 예제 > MultiBinding StringFormat={}{0} {1}

Windows 7 Pro (32bit)
Microsoft Visual Studio 2017 Community

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;
//
using System.Collections.ObjectModel;

namespace _170608_t1820_treeview
{
    /// <summary>
    /// MainWindow.xaml の相互作用ロジック
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
    }
    public class Category : ObservableCollection<Category>
    {
        public Category()
        {
        }
        public Category(string name, String codename)
        {
            Name = name;
            CodeName = codename;
        }
        public string Name { get; set; }
        public string CodeName { get; set; }
        public Category Children { get; set; }
    }
    public class OSTypes
    {
        public Category Categories { get; set; }
        public OSTypes()
        {
            Categories = new Category()
            {
                new Category("OS", "")
                {
                    Children = new Category
                    {
                        new Category("Windows", "")
                        {
                            Children = new Category
                            {
                                new Category("Windows 10", "Threshold"),
                                new Category("Windows 8.1", "Blue"),
                            }
                        },
                        new Category("Mac OS X", "")
                        {
                            Children = new Category
                            {
                                new Category("Mac OS X 10.11", "El Capitan")
                            }
                        }
                    }
                }
            };
        }
    }

}

<Window x:Class="_170608_t1820_treeview.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:_170608_t1820_treeview"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <local:OSTypes x:Key="keyOSTypes"/>
        <HierarchicalDataTemplate x:Key="keyTreeViewTemplate"
                                  ItemsSource="{Binding Path=Children}">
            <TextBlock>
                <TextBlock.Text>
                    <MultiBinding StringFormat="{}{0}({1})">
                        <Binding Path="Name"/>
                        <Binding Path="CodeName"/>
                    </MultiBinding>
                </TextBlock.Text>
            </TextBlock>
        </HierarchicalDataTemplate>
    </Window.Resources>
    <Window.DataContext>
        <Binding Mode="OneWay" Source="{StaticResource keyOSTypes}"/>
    </Window.DataContext>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <TreeView ItemsSource="{Binding Categories}"
                  ItemTemplate="{StaticResource keyTreeViewTemplate}"/>
    </Grid>
</Window>

snippet

        <HierarchicalDataTemplate x:Key="keyTreeViewTemplate"
                                  ItemsSource="{Binding Path=Children}">
            <TextBlock>
                <TextBlock.Text>
                    <MultiBinding StringFormat="{}{0}({1})">
                        <Binding Path="Name"/>
                        <Binding Path="CodeName"/>
                    </MultiBinding>
                </TextBlock.Text>
            </TextBlock>
        </HierarchicalDataTemplate>