WPF Binding a control's zindex to a property doesn't work

Question

If I bind a control's ZIndex to a property, although the property is clearly called when I debug (the breakpoint is hit on the getter), the zindex doesn't seem to work (ie. the zindex doesn't change in the running application properly; the elements on the control are no longer clickable if I set the zindex to be bound to a property rather than a set value in XAML). Any idea why, or how to fix this? Thanks for the help!

        <views:LaunchableApplicationControl BorderThickness="0" 
            BorderBrush="DarkSlateGray" x:Name="LaunchableApplicationControl"
            Grid.Column="1" Margin="25,150,25,50"  
            Panel.ZIndex="{Binding LaunchableControlZIndex}" 
            Grid.Row="0" Grid.RowSpan="2" 
            DataContext="{Binding LaunchableApplication, Mode=OneWay, 
            Source={StaticResource Locator}}"/>

Answer 1

You can try DataContext="{Binding ElementName=LaunchableApplicationControl}" and bind to a property which will set ZIndex . Make sure you implement INotifyPropertyChanged interface .

        private int _Zindex;
        public int Zindex
        {
            get { return _Zindex; }
            set
            {
                if (_Zindex == value)
                {
                    return;
                }
                _Zindex = value;
                NotifyPropertyChanged("Zindex");
            }
        }