C#でListを使ったComboBox


わからんけど

List使ってComboBoxに値を追加したいことありますよね多分。
で、Listにぶち込んでからComboBoxにぶち込み、更にその値をきちんと取得できるかなというテスト。

動くけれども、正しいのかどうかはわからない。


サンプル

XAML

<Window x:Name="window" x:Class="sampleApp.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:sampleApp"
        mc:Ignorable="d"
        Title="SampleApp" Height="200" Width="300" SizeToContent="WidthAndHeight" ResizeMode="NoResize">
    <Grid Width="300" Height="200">
        <Grid.RowDefinitions>
            <RowDefinition Height="183*"/>
            <RowDefinition Height="74*"/>
        </Grid.RowDefinitions>
        <ComboBox x:Name="comboBox0" Grid.Column="1" HorizontalAlignment="Left" Margin="0" VerticalAlignment="Center" Width="120">
            <ComboBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding ProductName}"/>
                    </StackPanel>
                </DataTemplate>
            </ComboBox.ItemTemplate>
        </ComboBox>
        <Button x:Name="button0" Content="Run" Margin="0,0,0,0" Click="button_Click" Grid.Row="1" Width="100" />
    </Grid>
</Window>

C# code

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
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 sampleApp
{
    /// <summary>
    /// MainWindow.xaml の相互作用ロジック
    /// </summary>
    public partial class MainWindow : Window
    {
        private List<GPU> comboList = new List<GPU> { };

        public MainWindow()
        {
            InitializeComponent();

            comboList.Add(new GPU
            {
                Vendor = GPUVendor.NVIDIA,
                ProductName = "NVIDIA GTX970"
            });

            comboList.Add(new GPU
            {
                Vendor = GPUVendor.NVIDIA,
                ProductName = "NVIDIA GTX980"
            });

            comboList.Add(new GPU
            {
                Vendor = GPUVendor.AMD,
                ProductName = "AMD Radeon HD7770"
            });

            comboList.Add(new GPU
            {
                Vendor = GPUVendor.Intel,
                ProductName = "Intel HD Graphics 5500"
            });

            comboBox0.ItemsSource = comboList.ToList();

            // LINQを使ってcomboBoxに入れるものをフィルタする場合
            /*
            comboBox0.ItemsSource = comboList.Where(x => x.Vendor == GPUVendor.NVIDIA).ToList();
            */
        }

        private void button_Click(object sender, RoutedEventArgs e)
        {
            GPU temp = (GPU)comboBox0.SelectedItem;
            MessageBox.Show("Your select GPU :: " + temp.ProductName);
        }
    }

    public enum GPUVendor { Intel, AMD, NVIDIA };

    public class GPU
    {
        public GPUVendor Vendor { get; set; }
        public string ProductName { get; set; }
    }
}