[WPF] SetBinding 을 이용해 ListBox 선택에 따른 배경색 변경하기

 

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using System.Reflection; using System.Windows; using System.Windows.Controls; using System.Windows.Media;   namespace WpfApp {     /// <summary>     /// MainWindow.xaml에 대한 상호 작용 논리     /// </summary>     public partial class MainWindow : Window     {         public MainWindow()         {             InitializeComponent();               Title = "List Color Names";               // 윈도우의 목록처럼 ListBox를 생성             ListBox listbox = new ListBox();             listbox.Width = 150;             listbox.Height = 150;               Content = listbox;             // 색상명으로 ListBox를 채움             PropertyInfo[] props = typeof(Colors).GetProperties();             foreach (PropertyInfo prop in props)             {                 listbox.Items.Add(new { NAME = prop.Name, BRUSH = new SolidColorBrush((Color)prop.GetValue(null, null)) });             }               listbox.DisplayMemberPath = "NAME";             listbox.SelectedValuePath = "BRUSH";               // SelectedValue와 윈도우 배경색을 바인딩             listbox.SetBinding(ListBox.SelectedValueProperty, nameof(List.Background));             listbox.DataContext = this;         }     } }

 

 

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using System.Reflection; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Media;   namespace WpfApp2 {     /// <summary>     /// MainWindow.xaml에 대한 상호 작용 논리     /// </summary>     public partial class MainWindow : Window     {         public MainWindow()         {             InitializeComponent();               Title = "List Color";               // 윈도우 Content를 위한 리스트 박스 생성             ListBox listbox = new ListBox();             listbox.Width = 150;             listbox.Height = 150;               Content = listbox;               // label 컨트롤로 리스트 박스를 채움             PropertyInfo[] props = typeof(Colors).GetProperties();               foreach (PropertyInfo prop in props)             {                 Color color = (Color)prop.GetValue(null, null);                   bool isBlack = .222 * color.R + .707 * color.G + .071 * color.B > 128;                   Label label = new Label();                 label.Content = prop.Name;                 label.Background = new SolidColorBrush(color);                 label.Foreground = isBlack ? Brushes.Black : Brushes.White;                 label.Width = 100;                 label.Margin = new Thickness(15, 0, 0, 0);                 label.Tag = new SolidColorBrush(color);                   listbox.Items.Add(label);             }               listbox.SelectedValuePath = nameof(Label.Tag);             listbox.SetBinding(ListBox.SelectedValueProperty, nameof(List.Background));             listbox.DataContext = this;         }     } }