C# Change A Button's Background Color

Question

How can the background color of a button once another button is pressed?

What I have at the moment is:

ButtonToday.Background = Color.Red;
         


        

Answer 1

Code for set background color, for SolidColor:

button.Background = new SolidColorBrush(Color.FromArgb(Avalue, rValue, gValue, bValue));