<% %> in ASP.NET (embedded code blocks)

Question

I understand what these signify in the markup of the aspx pages ... but I don\'t not know the full power they can be used for or even the name to denote these special directives

Answer 1

These are code Block tags.

And yes you can wrap serverside code in these tags (examples in C#)

<% if (x = y) {
  } else {
  }
%>

OR

<% if (x = y) {%>
   Write this HTML
<%  } else {%>
   Write this html
<%  }%>

There is also

This <%=SomeVar %> Which will out put SomeVar to HTML