Routed Event Demo : RoutedCommand « Windows Presentation Foundation « VB.Net Tutorial






<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        x:Class="WpfApplication1.RoutedEventDemo.RoutedEventDemo"
        Title="Routed Event Demo">
    <TextBlock Name="txtblk">TextBlock with Context Menu
        <TextBlock.ContextMenu>
            <ContextMenu MenuItem.Click="MenuItemOnClick">
                <MenuItem Header="Red" />
                <MenuItem Header="Orange" />
                <MenuItem Header="Yellow" />
                <MenuItem Header="Green" />
                <MenuItem Header="Blue" />
                <MenuItem Header="Indigo" />
                <MenuItem Header="Violet" />
            </ContextMenu>
        </TextBlock.ContextMenu>
    </TextBlock>
</Window>
//File:Window.xaml.vb

Imports System
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Input
Imports System.Windows.Media

Namespace WpfApplication1.RoutedEventDemo
  Public Partial Class RoutedEventDemo
    Inherits Window

    Public Sub New()
      InitializeComponent()
    End Sub
    Private Sub MenuItemOnClick(sender As Object, args As RoutedEventArgs)
      Dim str As String = TryCast(TryCast(args.Source, MenuItem).Header, String)
      Dim clr As Color = CType(ColorConverter.ConvertFromString(str), Color)
      txtblk.Foreground = New SolidColorBrush(clr)
    End Sub
  End Class
End Namespace
WPF Routed Event Demo








16.92.RoutedCommand
16.92.1.Create a custom RoutedCommand, the CommandBinding objects, and the KeyBinding objects in code.Create a custom RoutedCommand, the CommandBinding objects, and the KeyBinding objects in code.
16.92.2.Convert RoutedEventArgs.OriginalSource to event senderConvert RoutedEventArgs.OriginalSource to event sender
16.92.3.RoutedEvents: Button Mouse Up EventRoutedEvents: Button Mouse Up Event
16.92.4.RoutedEvents: Drag And DropRoutedEvents: Drag And Drop
16.92.5.RoutedEvents: Focus eventRoutedEvents: Focus event
16.92.6.RoutedEvents: Key ModifiersRoutedEvents: Key Modifiers
16.92.7.RoutedEvents: Key Press EventsRoutedEvents: Key Press Events
16.92.8.RoutedEvents: Mouse PositionRoutedEvents: Mouse Position
16.92.9.Bubble routed events, and write an event handler for a routed event.Bubble routed events, and write an event handler for a routed event.
16.92.10.Get RoutedEvent NameGet RoutedEvent Name
16.92.11.Create RoutedCommand from InputGestureCollectionCreate RoutedCommand from InputGestureCollection
16.92.12.RoutedEvents Only NumbersRoutedEvents Only Numbers
16.92.13.Routed Event DemoRouted Event Demo