metrowindow topmost property binding issue

I am using MahApps for my WPF application and when the metro window is used, the TopMost property is not able to bind. If i set it as a static value it works though.

<Controls:MetroWindow x:Class="SabreContractSearch.Views.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:prism="http://prismlibrary.com/"
        xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
        xmlns:iconPacks="http://metro.mahapps.com/winfx/xaml/iconpacks"
        prism:ViewModelLocator.AutoWireViewModel="True"
        Topmost= "{Binding Pin}" Title="{Binding Title}" Height="350" Width="525" Name="FrmMainWindow" >

Pin is a boolean property here.

If i remove the metro window and use the normal window tag for WPF, it works. Is this a bug?

[punker76]

@sg2707 It’s fixed now and available with ControlzEx v4.2.2

[punker76]

@sg2707 I found the bug. It happens at WindowChromeBehavior from ControlzEx. The Binding will be broken by our Topmost hack. I will fix this.