BlockThread.xaml : Thread « Windows Presentation Foundation « VB.Net






BlockThread.xaml

BlockThread.xaml
     
<Window x:Class="WPFThreading.BlockThread"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="UI Thread Blocker" Height="275" Width="225"
  >
  <Window.Resources>
    <Style TargetType="{x:Type Button}">
      <Setter Property="Height" Value="20" />
      <Setter Property="Background" Value="Beige"/>
      <Setter Property="Margin" Value="2" />
    </Style>
    <Style TargetType="{x:Type Label}">
      <Setter Property="FontWeight" Value="Bold" />
      <Setter Property="Margin" Value="2" />
    </Style>
    <Style TargetType="{x:Type TextBox}">
      <Setter Property="Margin" Value="2" />
    </Style>
  </Window.Resources>
  <Border Width="200" Height="225" BorderBrush="Black" 
    BorderThickness="1" Margin="4">
    <StackPanel>

      <Label>Simulate Long-Running Process</Label>
      <Button Name="button1" Click="button1_click">Go to sleep</Button>

      <Label>Will I respond?</Label>
      <Button Name="button2" Click="button2_click">Try Me</Button>

      <Label>Output Messages</Label>
      <TextBox Name="textbox1"/>

      <Label/>

      <StackPanel Orientation="Horizontal">
        <Label>UI thread:</Label>
        <Label Name="UIThreadLabel"></Label>
      </StackPanel>

      <StackPanel Orientation="Horizontal">
        <Label>BG thread:</Label>
        <Label Name="BackgroundThreadLabel"></Label>
      </StackPanel>

    </StackPanel>
  </Border>
</Window>

//File:Window.xaml.vb

Imports System.Windows

Namespace WPFThreading

  Public Partial Class BlockThread
    Inherits System.Windows.Window

    Public Sub New()
      InitializeComponent()

      Me.UIThreadLabel.Content = Me.Dispatcher.Thread.ManagedThreadId
      Me.BackgroundThreadLabel.Content = "N/A"
    End Sub
    Private Sub button1_click(sender As Object, e As RoutedEventArgs)
      System.Threading.Thread.Sleep(5000)
      Me.textbox1.Text = "Done Sleeping..."
    End Sub

    Private Sub button2_click(sender As Object, e As RoutedEventArgs)
      Me.textbox1.Text = "Hello WPF"
    End Sub

  End Class
End Namespace

   
    
    
    
    
  








Related examples in the same category

1.Create a multi threaded web browsing application.
2.Show a Continuous Animation During an Asynchronous ProcessShow a Continuous Animation During an Asynchronous Process
3.Load the Data for a Window Asynchronously After It Has RenderedLoad the Data for a Window Asynchronously After It Has Rendered
4.Check Whether You Are Running on the UI ThreadCheck Whether You Are Running on the UI Thread
5.Ensure That You Are Running on the UI ThreadEnsure That You Are Running on the UI Thread
6.A Cancellable ProgressBar While Processing on a Background ThreadA Cancellable ProgressBar While Processing on a Background Thread
7.Show a Continuous Progress Bar While Processing on a Background ThreadShow a Continuous Progress Bar While Processing on a Background Thread
8.Execute a Method Asynchronously Using the Dispatcher QueueExecute a Method Asynchronously Using the Dispatcher Queue
9.Thread Sleep in Button Click handlerThread Sleep in Button Click handler
10.Execute a Method Asynchronously Using a Background Worker ThreadExecute a Method Asynchronously Using a Background Worker Thread
11.Track the Progress of a Background Worker ThreadTrack the Progress of a Background Worker Thread
12.Support the Cancellation of a Background Worker ThreadSupport the Cancellation of a Background Worker Thread
13.Create a Background Worker Thread in XAMLCreate a Background Worker Thread in XAML
14.WPF ThreadingWPF Threading
15.Keep the UI from becoming non-responsive in single threaded application which performs a long operation.Keep the UI from becoming non-responsive in single threaded application which performs a long operation.