BackgroundColor of a disabled TextBox

Question

I have a TextBox that is defined through a ControlTemplate. Because of the ControlTemplate, the TextBox is no more automatically grayed out when the IsEnabled-property is se

Answer 1

The hex value for Win7 aero SystemColors.ControlBrushKey is F0F0F0. Not F4F4F4. So that one is not correct, don't know which to use so I'm gonna use F4F4F4.

Answer 2

The following StackOverflow question may help:

Visual guide to System.Windows.SystemColors

Edit:

I did some additional sleuthing and looked at the standard XAML styles that Microsoft provides (see Where can I download Microsoft's standard WPF themes from?). You can see exactly which SystemColors values are used for various controls.

For example, here is a snippet of the control template for ComboBox:

<Trigger Property="IsEnabled" Value="false">
    ...
    <Setter
        TargetName="Bd"
        Property="Background"
        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
    ...
</Trigger>

Microsoft uses SystemColors.ControlBrushKey as the background color of a disabled ComboBox.