WPF tutorial - The ListBox control

http://www.wpf-tutorial.com/list-controls/listbox-control/

초기에 써놓은 게 날아갔습니다.. 다시 작성하기 귀차나아 ~.~

중요 요점만 적으면 ListBox는 ItemsContorl과 다르게 선택항목을 다룬다!

Data binding the ListBox

 <Grid Margin="10">
        <ListBox Name="lbTodoList" HorizontalContentAlignment="Stretch">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid Margin="0,2">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*" />
                            <ColumnDefinition Width="100" />
                        </Grid.ColumnDefinitions>
                        <TextBlock Text="{Binding Title}" />
                        <ProgressBar Grid.Column="1" Minimum="0" Maximum="100" Value="{Binding Completion}" />
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
 
            List<TodoItem> items = new List<TodoItem>();
 
            items.Add(new TodoItem() { Title = "Complete this WPF tutorial", Completion = 45 });
            items.Add(new TodoItem() { Title = "Learn C#", Completion = 80 });
            items.Add(new TodoItem() { Title = "Wash the car", Completion = 0 });
 
            lbTodoList.ItemsSource = items;
        }
    }
 
    public class TodoItem
    {
        public string Title { get; set; }
        public int Completion { get; set; }
    }

Working with ListBox selection

 <DockPanel Margin="10">
        <StackPanel DockPanel.Dock="Right" Margin="10,0">
            <StackPanel.Resources>
                <Style TargetType="Button">
                    <Setter Property="Margin" Value="0,0,0,5"/>
                </Style>
            </StackPanel.Resources>
            <TextBlock FontWeight="Bold" Margin="0,0,0,10">ListBox selection</TextBlock>
            <Button Name="btnShowSelectedItem" Click="btnShowSelectedItem_Click">Show selected</Button>
            <Button Name="btnSelectLast" Click="btnSelectLast_Click">Select last</Button>
            <Button Name="btnSelectNext" Click="btnSelectNext_Click">Select next</Button>
            <Button Name="btnSelectCSharp" Click="btnSelectCSharp_Click">Select C#</Button>
            <Button Name="btnSelectAll" Click="btnSelectAll_Click">Select all</Button>
        </StackPanel>
        <ListBox Name="lbTodoList" HorizontalContentAlignment="Stretch" SelectionMode="Extended" SelectionChanged="lbTodoList_SelectionChanged">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid Margin="0,2">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*" />
                            <ColumnDefinition Width="100" />
                        </Grid.ColumnDefinitions>
                        <TextBlock Text="{Binding Title}"/>
                        <ProgressBar Grid.Column="1" Minimum="0" Maximum="100" Value="{Binding Completion}"/>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </DockPanel>

 public MainWindow()
        {
            InitializeComponent();
 
            List<TodoItem> items = new List<TodoItem>();
            items.Add(new TodoItem() { Title = "Complete this WPF tutorial", Completion = 45 });
            items.Add(new TodoItem() { Title = "Learn C#", Completion = 80 });
            items.Add(new TodoItem() { Title = "Wash the car", Completion = 0 });
 
            lbTodoList.ItemsSource = items;
        }
 
        private void lbTodoList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (lbTodoList.SelectedItem != null)
                this.Title = (lbTodoList.SelectedItem as TodoItem).Title;
        }
 
        private void btnShowSelectedItem_Click(object sender, RoutedEventArgs e)
        {
            foreach (object o in lbTodoList.SelectedItems)
                MessageBox.Show((o as TodoItem).Title);
        }
 
        private void btnSelectLast_Click(object sender, RoutedEventArgs e)
        {
            lbTodoList.SelectedIndex = lbTodoList.Items.Count - 1;
        }
 
        private void btnSelectNext_Click(object sender, RoutedEventArgs e)
        {
            int nextIndex = 0;
            if ((lbTodoList.SelectedIndex >= 0) && (lbTodoList.SelectedIndex < (lbTodoList.Items.Count - 1)))
                nextIndex = lbTodoList.SelectedIndex + 1;
            lbTodoList.SelectedIndex = nextIndex;
        }
 
        private void btnSelectCSharp_Click(object sender, RoutedEventArgs e)
        {
            foreach (object o in lbTodoList.Items)
            {
                if ((o is TodoItem) && ((o as TodoItem).Title.Contains("C#")))
                {
                    
                    lbTodoList.SelectedItem = o;
                    break;
                }
            }
        }
 
        private void btnSelectAll_Click(object sender, RoutedEventArgs e)
        {
            foreach (object o in lbTodoList.Items)
                lbTodoList.SelectedItems.Add(o);
        }
    }
 
    public class TodoItem
    {
        public string Title { get; set; }
        public int Completion { get; set; }
    }

ListBox의 SelectionMode="Extended" 를 수정하여 다중선택이 가능하도록 하였습니다.

[CTRL] 또는 [SHIFT]를 누른 상태로 클릭을 하게 되면 중복선택이 가능합니다.