Code behind

Créer un menu contextuel

var cm = new ContextMenu(); var mt = new MenuItem(); mt.Header = "Titre"; mt.Click += mt_Click; cm.Items.Add(mt); var textBox = new TextBox() { ContextMenu = cm }; void mt_Click(object sender, RoutedEventArgs e) { var menuItem = (MenuItem)e.Source; var contextMenu = (ContextMenu)menuItem.Parent; var textbox = contextMenu.PlacementTarget as TextBox; }

Appeler un event

// Lance l'event LostFocus pour permettre la validation de la TextBox textBox.RaiseEvent(new RoutedEventArgs(TextBox.LostFocusEvent));

DataTemplate

var stackPanel = new FrameworkElementFactory(typeof(StackPanel)); stackPanel.SetValue(StackPanel.OrientationProperty, Orientation.Horizontal); var label = new FrameworkElementFactory(typeof(Label)); label.SetValue(Label.ContentProperty, "texte"); stackPanel.AppendChild(label); var dataTemplate = new DataTemplate(); dataTemplate.VisualTree = stackPanel;

ControlTemplate

var itemsPresenter = new FrameworkElementFactory(typeof(ItemsPresenter)); var textBlock = new FrameworkElementFactory(typeof(TextBlock)); textBlock.SetValue(TextBlock.TextProperty, "..."); var stackPanel = new FrameworkElementFactory(typeof(StackPanel)); stackPanel.AppendChild(itemsPresenter); stackPanel.AppendChild(textBlock); Template = new ControlTemplate(typeof(ItemsControl)) { VisualTree = stackPanel };

Équivalent à:

<ItemsControl.Template> <ControlTemplate TargetType="{x:Type ItemsControl}"> <StackPanel> <ItemsPresenter /> <TextBlock Text="..." /> </StackPanel> </ControlTemplate> </ItemsControl.Template>

CommandBindings

CommandBindings.Add(new CommandBinding(MyCommand, MyCommandExecuted));

Binding

// Binding de la propriété Height d'un Button sur la propriété ActualHeight d'un ItemControl var binding = new Binding(); // définit la source du Binding binding.Source = this.monItemControl; // ou bien une source relative binding.RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof(ItemsControl), 1); binding.valueBinding.Mode = BindingMode.TwoWay; binding.Converter = new MyConverter(); binding.Path = new PropertyPath("ActualHeight"); button.SetBinding(Button.HeightProperty, binding);

MergedDictionaries

var rd = new ResourceDictionary(); rd.Source = new System.Uri("pack://application:,,,/flowers;Component/Resources/Window.xaml"); Resources.MergedDictionaries.Add(rd);

Style

var style = FindResource("NomDeMonStyle") as Style; var textBlockStyle = new Style(); textBlockStyle.Setters.Add(new Setter(TextBlock.ForegroundProperty, Brushes.White)); // le style est ajouté sans clé et sera donc appliqué à tous les TextBlock Resources.Add(typeof(TextBlock), textBlockStyle);