Databases
StackOverflow2013
Postsdbo
POWPF Window messages not firing while popup window animation is running
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POWPF Window messages not firing while popup window animation is running
    primarykey
    data
    text
    <p>I have created a little Popup window in WPF, which shows and hides with a 500 millisecond fade-animation.</p> <p>The Popup is shown when the PreviewMouseUp of a TextBox control is fired, and hidden when the focus of the TextBox is lost.</p> <p>The problem is that if I have two of these TextBoxes, the animation of the Popup-window seems to block all Window Messages sent to the main window while the animation is going. The PreviewMouseUp of the second TextBox is fired only right after the animation of the first TextBox's Popup is complete.</p> <p>Is there a way to make the fade-animation of my Popup Window NOT to block Window Messages while the animation is running?</p> <p>Example XAML file:</p> <pre><code> &lt;Window x:Class="WpfApplication4.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"&gt; &lt;Grid&gt; &lt;TextBox HorizontalAlignment="Left" Height="23" Margin="22,26,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" PreviewMouseUp="TextBox_PreviewMouseUp_1" LostFocus="TextBox_LostFocus_1"/&gt; &lt;TextBox HorizontalAlignment="Left" Height="23" Margin="22,54,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" PreviewMouseUp="TextBox_PreviewMouseUp_1" LostFocus="TextBox_LostFocus_1"/&gt; &lt;/Grid&gt; &lt;/Window&gt; </code></pre> <p>Example Code file:</p> <pre><code> using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; namespace WpfApplication4 { /// &lt;summary&gt; /// Interaction logic for MainWindow.xaml /// &lt;/summary&gt; public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void TextBox_PreviewMouseUp_1(object sender, MouseButtonEventArgs e) { Popup p = new Popup(); p.Width = 100; p.Height = 100; p.Placement = PlacementMode.Left; p.PlacementTarget = (TextBox)sender; p.Child = new Border(); p.IsOpen = true; ((TextBox)sender).Tag = p; } private void TextBox_LostFocus_1(object sender, RoutedEventArgs e) { Popup p = (Popup)((TextBox)sender).Tag; DoubleAnimation anim = new DoubleAnimation(100, 0, new Duration(new TimeSpan(0, 0, 1))); p.BeginAnimation(WidthProperty, anim); } } } </code></pre> <p>If you click quickly both textboxes, you notice that the other Popup won't appear (and the textbox doesn't get focus) while the animation is running. </p> <p>What I have found so far, it seems like if the animation is really intensive (high framefrate), the window messages are blocked until the animation is complete. If I set the application framerate to lower value, like 30FPS, then the problem goes away. But this is not an option for me because I wan't the animations to be as smooth as possible.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJaska
    1. USJaska
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POWPF Window messages not firing while popup window animation is running
      1. USJaska
      1. VTFavorite
    1. COI'm almost certain that the animation will not block any window messages. Your problem seems something else, can you provide a small example of your problem?
      singulars
      1. POWPF Window messages not firing while popup window animation is running
      1. USdowhilefor
    2. COMy project is quite large.. Have to create a smaller example one then.. but now have to go to sleep - Will post that tomorrow.
      singulars
      1. POWPF Window messages not firing while popup window animation is running
      1. USJaska
    3. COOk I just posted an example
      singulars
      1. POWPF Window messages not firing while popup window animation is running
      1. USJaska
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload