Code Blocks in razor

             A code block is a section of the view that contains strictly code rather than a combi- nation of markup and code. Razor defines a code block as any section of a Razor template wrapped in @{ } characters.
            The @{ characters mark the beginning of the block, followed by any number of lines of code. The } character closes the code block. Keep in mind that the code within a code block is not like code in a code nugget. It is fully-formed code that must follow the rules of the current language; for example, each line of code written in C# must include a semicolon (;) at the end, just as if it lived within a class in a .cs file.

Here is an example of a typical code block:

@{
LayoutPage = "~/Views/Shared/_Layout.cshtml";
View.Title = "Product Details for " + Model.ProductName;
 } 

          Code blocks do not render anything to the page. Instead, they allow you to write ar- bitrary code that requires no return value. Variables defined within code blocks may be used by code nuggets in the same scope. That is, variables defined within the scope of a foreach loop or similar container will only be accessible within that container.