In Silverlight 4 Now we have option to set Default style to particular type of control . for example let say I have 4 button controls in my Silverlight UI. I wanted to define Style for the following properties Margin, Width and height. here is how we usually define Style in Silverlight 3.0.
but in Silverlight 4.0 we no need to specify Name. Just remove the Name attribute from Style as shown below.
by removing the Name Attribute we are defining Anonymous style this Style applies to all the button on our application this makes our XAML Code looks tidy and nice