ver 1.2.1 - Flyout Control stopped working after upgrade to ver 1.2.1

[iTrout]

Flyout code worked fine in versions 1.1.0 and before...code has not changed, but after upgrading to version 1.2.1 the line:

        flyOut.IsOpen = true;

returns the following error.

       Windows.UI.Xaml.Markup.XamlParseException: Unspecified error
            at Windows.UI.Xaml.Controls.Primitives.Popup.put_IsOpen(Boolean value)
            at Callisto.Controls.Flyout.<.cctor>b__3(DependencyObject obj, DependencyPropertyChangedEventArgs args)

We've replicated the problem on different Windows 8 machines with the same unchanged code.

[timheuer]

I'm not able to reproduce this. Are you using an RTM build of Windows? Does the testapp work fine for you?

[iTrout]

We are using Windows 8 Release Preview, Evaluation Copy. Build 8400. For Visual Studio, we're using Microsoft Visual Studio Professional 2012 RC, Version 11.0.50522.1 RCREL

We've created a simple test that works on 1.1.0 but still gives the same error on 1.2.1...here's the c# code behind:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Callisto.Controls;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace App105.APDtest
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class FlyoutTest : Page
    {
        public FlyoutTest()
        {
            this.InitializeComponent();
        }

        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {

        }

        private void MyButton_Click(object sender, RoutedEventArgs e)
        {
            Flyout f = new Flyout();

            // Flyout is a ContentControl so set your content within it.
            f.Content = new Border() { Width = 500, Height = 500 };

            f.Placement = PlacementMode.Top;
            f.PlacementTarget = sender as UIElement; // this is an UI element (usually the sender)

            f.IsOpen = true;
        }
    }
}

[timheuer]

If you are on RP you shouldn't be using 1.1.0 to begin with. RP isn't guaranteed to work on anything past 1.0.11 at this point.

However, I haven't changed any Flyout code from 1.1.0->1.2.1

[iTrout]

Downloading RTM as I type...will install tonight and see if the world is back in place. Thanks for you quick responses and help.

[timheuer]

Please do. I suspect it actually has nothing to do with Flyout but a different definition in generic.xaml that is causing the parse exception due to a base style that is no longer present in RP

[iTrout]

Upgraded to RTM...everything is working perfectly now. Thanks for the help!