How to make button's width autofit the text of a button?

Question

I am currently doing this, but I am doing something wrong :):

   <Style TargetType="{x:Type Button}">
      <Setter Property="MinWidth" Value="90" />
      <Setter Property="Width" Value="Auto" />
   </Style>

I want the buttons to have some minimum width but also to have their width expand to fit the text of the button.

Answer 1

What you have to do is set the HorizontalAlignment property to Center (or Right or Left). The buttons must be getting stretched by the containing Panel.

   <Style TargetType="{x:Type Button}">
      <Setter Property="MinWidth" Value="90" />
      <Setter Property="HorizontalAlignment" Value="Center" />
   </Style>

Answer 2

If setting HorizontalAlignment isn't working, check to see that you have not set a Width - that will prevent the button from resizing. A handy trick is setting the Width property to NaN or ..NaN depending upon your application's configuration (which ever doesn't throw a compilation error).