WPF Data Triggers

Today I needed to control the enabled property of a button "Remove Item" on my form depending on weather there was a selected item in a Listbox.

Here's how

[code:c#]
<Button Content="Remove" Click="OnRemoveTranstion">
<Button.Style>
<Style>
    <Style.Triggers>
        <DataTrigger Binding ="{Binding ElementName=listDetails, Path=SelectedIndex}" Value="-1">
            <Setter Property="Button.IsEnabled" Value="false"/>
        </DataTrigger>
    </Style.Triggers>
</Style>
</Button.Style>
</Button>
[/code]

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