How to put two triangles in a button

Question

I am trying to create a button that has two triangles. One in the top right corner and one on the bottom left corner as shown below. And each would be displayed based on a boolean value (for example, ShowBottoCyan or ShowUpperGreen). I was hoping to do this in .xaml

I am using C#. I was trying polygons but having trouble understanding them.

You can use a LinearGradientBrush for the background (and even animate it). The "offsets" are little tricky ("off center"); but satisfying once you get them right. — Gerry Schmitz
– Gerry Schmitz, Commented Apr 1 at 17:53

Basheer Jarrah · Accepted Answer · 2025-03-31 23:16:45Z

3

You need the following Polygon elements in the Button element in your XAML code:

<Polygon x:Name="TopTriangle"
 Points="0,0 15,0 15,15" 
 Fill="Green"
 Stroke="Cyan"
 HorizontalAlignment="Right"
 VerticalAlignment="Top"
 Margin="3"/>

<Polygon x:Name="BottomTriangle"
 Points="0,0 0,15 15,15" 
 Fill="Cyan"
 Stroke="Cyan"
 HorizontalAlignment="Left"
 VerticalAlignment="Bottom"
 Margin="3"/>

Consider inverted cartesian product, top triangle points are:

And bottom triangle points are:

answered Mar 31 at 23:16

Basheer Jarrah

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