Using a DispatcherTimer : Timer « Windows Presentation Foundation « VB.Net Tutorial

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VB.Net Tutorial » Windows Presentation Foundation » Timer 
16.116.2.Using a DispatcherTimer
<Window x:Class="DispatcherExamples2.MyWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="DispatcherTimer" Height="300" Width="300">
    <Grid>
        
    </Grid>
</Window>
//File:Window.xaml.vb
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes
Imports System.Windows.Threading

Namespace DispatcherExamples2
  Partial Class MyWindow
    Inherits Window
    Private dt As New DispatcherTimer()
    Public Sub New()
      InitializeComponent()
      AddHandler dt.Tick, AddressOf dt_Tick
      dt.Interval = TimeSpan.FromSeconds(2)
      dt.Start()
    End Sub
    Private Sub dt_Tick(sender As Object, e As EventArgs)
      Dim rnd As New Random()
      Dim vals As Byte() = New Byte(2) {}
      rnd.NextBytes(vals)
      Dim As Color = Color.FromRgb(vals(0), vals(1), vals(2))
      Me.Background = New SolidColorBrush(c)
    End Sub
  End Class
End Namespace
WPF Using A Dispatcher Timer
16.116.Timer
16.116.1.Update the UI Asynchronously on a TimerUpdate the UI Asynchronously on a Timer
16.116.2.Using a DispatcherTimerUsing a DispatcherTimer
16.116.3.DispatcherTimer set upDispatcherTimer set up
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