Load the Data for a Window Asynchronously After It Has Rendered : Thread « Windows Presentation Foundation « VB.Net

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VB.Net » Windows Presentation Foundation » ThreadScreenshots 
Load the Data for a Window Asynchronously After It Has Rendered
Load the Data for a Window Asynchronously After It Has Rendered
    
<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF" Height="200" Width="300"
    Loaded="Window_Loaded">
    <StackPanel>
        <TextBlock>One Million Numbers:</TextBlock>

        <ListBox x:Name="listBox"/>
    </StackPanel>
</Window>
//File:Window.xaml.vb
Imports System.Windows
Imports System.Windows.Threading
Imports System.Collections.Generic

Namespace WpfApplication1
  Public Partial Class Window1
    Inherits Window
    Public Sub New()

      InitializeComponent()
    End Sub

    Private Sub Window_Loaded(sender As Object, e As RoutedEventArgs)
      Me.Dispatcher.BeginInvoke(DispatcherPriority.Background, New LoadNumbersDelegate(AddressOf LoadNumbers))
    End Sub
    Private Delegate Sub LoadNumbersDelegate()
    Private Sub LoadNumbers()
      Dim numberDescriptions As New List(Of String)()
      For i As Integer = To 1000000
        numberDescriptions.Add("Number " & i.ToString())
      Next
      listBox.ItemsSource = numberDescriptions
    End Sub
  End Class
End Namespace

   
    
    
    
  
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