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 c As Color = Color.FromRgb(vals(0), vals(1), vals(2))
Me.Background = New SolidColorBrush(c)
End Sub
End Class
End Namespace
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