I ran across a piece of C# code today I had not seen before. The programmer defined a block of code using only curly braces (no if, class, function, etc).
{
You can use an open and close set of curly braces to define a self containing block, which has its own scope.
This is generally not considered good programming practice, though.
Usually if someone is doing something like this, it's probably better to create a method/function in its place.