How do I modify ONLY the right (or left, top, bottom) value of a WPF control's Margin property?

This is quite easy to do from code-behind:

var button = new Button();
var margin = button.Margin;
margin.Right = 10;
button.Margin = margin;

In XAML, however, I'm limited to the following:

<Button Margin="0,0,10,0" />

The problem with this is that now I've potentially overwritten the other margin values (i.e. left, top, bottom) by setting them to zero).

Is there any way to have XAML like the following?

<Button MarginRight="10" />