Question

In WPF, I have rectangle like this:

<Rectangle Grid.Column="1" Name="rectangleSignal" HorizontalAlignment="Left" Width="20" Height="20" >
    <Rectangle.Fill>
        <StaticResource ResourceKey="image0" />
    </Rectangle.Fill>
</Rectangle>

In .cs file. In some cases, I want to set this rectangle to be transparent.
I have code like this,
What should I do for Resourcekey, that I can make this rectangele be transparent?
thank you

rectangleSignal.SetResourceReference(Rectangle.FillProperty, "image0");

Edited:

I figured out myself.
Just setting peroperty to “#FFFFFFFF”
It will be fine.
Thanks everyone.

Answer 1

If you need to keep that reference you can add Brushes.Transparent as a resource with that key, if you do not need to do that make an assigment to Fill. Alternatively you can also just set the Visibility or Opacity.