Hello rmtuckerphx,

Regarding Andres comments below, I have created a support case CAS-70733-T97JGN.  I have also logged this as a development issue in our system with the issue ID 84837.  I will send you more details regarding this development issue through the support case. 

aaguiar said:

Hi,

We were able to reproduce the issue. It's a bug, as the IsOpen property is losing the binding. We are opening a support case and log a bug for this

.Andres

Please let me know if you have any questions on this matter.

That resolved the issue.  Thanks for the work around.

Hi,

We were able to reproduce the issue. It's a bug, as the IsOpen property is losing the binding. We are opening a support case and log a bug for this.

As a workaround, in order to not to set the property in the code-behind and break your MVVM, you can use the following class that defines an attached property that you can bind:

 public class InfoBoxIsOpenWrapper : FrameworkElement

    {

        public static bool GetIsOpen(DependencyObject obj)

        {

            return (bool)obj.GetValue(IsOpenProperty);

        }

        public static void SetIsOpen(DependencyObject obj, bool value)

        {

            obj.SetValue(IsOpenProperty, value);

        }

        // Using a DependencyProperty as the backing store for IsOpen.  This enables animation, styling, binding, etc...

        public static readonly DependencyProperty IsOpenProperty =

            DependencyProperty.RegisterAttached("IsOpen", typeof(bool), typeof(InfoBoxIsOpenWrapper), new PropertyMetadata(IsOpenPropertyChanged));

        private static void IsOpenPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

        {

            var infoBox = (XamInfoBox) d;

            infoBox.IsOpen = (bool) e.NewValue;

        }

    }

<ig:XamInfoBox x:Name="infobox" 
               IsClosedOnOutsideTap="False"
               RelativeToElement="{Binding ElementName=relative}"

               InfoBoxClose:InfoBoxIsOpenWrapper.IsOpen="{Binding IsShowBubble}">

                <TextBlock Text="InfoBox!" Padding="20"/>

</ig:XamInfoBox>

 Let me know if it works for you.

 I apologize for the inconveniences.

Andres

When I use a CheckBox with Element binding, then open/close works, but it doesn't in my scenario.

Some differences are:

• I am using a Canvas for the Layout
• The InfoBox has the binding statement to a bool on the ViewModel
• I am using Caliburn.Micro
• A button click toggles the bool

 <Canvas x:Name="LayoutRoot">

 ...<ig:XamInfoBox x:Name="infoBox" IsClosedOnOutsideTap="False" IsClosedOnBackButton="False" RelativeToElementPlacement="Top" PointerShape="CurlyPointer" DisconnectedPointerOffset="0" RelativeToElement="{Binding ElementName=dial}" PointerLength="40" PointerOffset="1" Background="#FF9D2F14" PointerBackground="#FF9D2F14" IsOpen="{Binding IsShowBubble, Mode=TwoWay}">

<TextBlock Foreground="White" TextWrapping="Wrap" Text="{Binding MyValue}" Width="80" HorizontalAlignment="Center" FontSize="32" TextAlignment="Center" FontWeight="Bold"/>

</StackPanel>

</ig:XamInfoBox>

<Button Canvas.Left="31" Canvas.Top="62" Content="Button" Height="76" Name="ShowBubble" Width="102" />

bool isShowBubble;

bool IsShowBubble{

get { return isShowBubble; }

set {

value;

NotifyOfPropertyChange(() => IsShowBubble);

}

}

}

void ShowBubble() { IsShowBubble = !IsShowBubble; }