WPF Visibility attribute designer issue

I've recently started having issues with Visibility attribute at designtime. Everything works fine at runtime but the Visibility attribute has no effect at designtime.

I've reinstalled Visual S开发者_运维百科tudio and the .net framework but the issue persists.

Sample code:

<StackPanel>
        <TextBlock Text="X" Visibility="Collapsed" Background="Red" />
        <TextBlock Text="Y"></TextBlock>
</StackPanel>

At runtime X is collapsed while at designtime it is shown.

Installing VS2010 SP1 fixed the issue. SP can be found at: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=75568aa6-8107-475d-948a-ef22627e57a5

try Ctrl + Shift + B after you changed code.. this maybe help you..

But i recomend you to install Microsoft Expression Blend. And make all Xaml markup, up there.

Update:

Or you can use this:

public class VisibilityFixer: DependencyObject
{
    public static bool GetFixDesigner(DependencyObject obj)
    {
        return (bool)obj.GetValue(FixDesignerProperty);
    }

    public static void SetFixDesigner(DependencyObject obj, bool value)
    {
        obj.SetValue(FixDesignerProperty, value);
    }

    // Using a DependencyProperty as the backing store for FixDesigner.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty FixDesignerProperty =
        DependencyProperty.RegisterAttached("FixDesigner", typeof(bool), typeof(VisibilityFixer),
        new UIPropertyMetadata(false, new PropertyChangedCallback(PropertyChanged)));

    public static void PropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
    {
        var obj = sender as FrameworkElement;

        if (obj != null)
        {
            if ((bool)(DesignerProperties.IsInDesignModeProperty.GetMetadata(typeof(DependencyObject)).DefaultValue)) 
            {
               if (obj.Visibility == Visibility.Collapsed)
                {
                    obj.Opacity = 0;
                    obj.Height = 0;
                    obj.Width = 0;
                } 
                else if (obj.Visibility == Visibility.Hidden)
                {
                    obj.Opacity = 0;
                }             
            }
        }
    }
}

and use it like this..

 <StackPanel x:Name="LayoutRoot">
    <TextBlock TextWrapping="Wrap" 
         Visibility="Collapsed" 
         fx:VisibilityFixer.FixDesigner="True" 
         Text="TextBlock3243" HorizontalAlignment="Left" 
         Background="Red" />
    <TextBlock HorizontalAlignment="Left" TextWrapping="Wrap"><Run Text="TextBlock"/></TextBlock>
</StackPanel>

and then use Ctrl + Shift + B