Why Rectangle Fill isnt changing?

Question

Here is my code. Visibillity changes successfully but Fill doesnt...( I know that I wont see the difference because I set it to collapsed but without visibility setter color doesnt change)

<Rectangle Fill="#FFC8B65E" Stroke="#FF353434" RadiusX="5" RadiusY="7" StrokeThickness="2">
    <Rectangle.Style>
        <Style>
            <Style.Triggers>
                <DataTrigger  Binding="{Binding TableOrder}" Value="{x:Null}">
                    <Setter Property="Shape.Fill" Value="White" />
                    <Setter Property="Rectangle.Visibility" Value="Collapsed" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </Rectangle.Style>
</Rectangle>

It seems that <Rectangle Fill="#FFC8B65E" is more important..

Answer 1

Have a look at the answer here: WPF Style: how to change GradientStop Color in Trigger It should help you solve your problem (use resources).

Answer 2

try removing Fill="#FFC8B65E"

because of Dependency Property Value Precedence even you set style property it will be ignored.

Answer 3

The string White isn't a valid colour.