unchecked block

unchecked (expression)

• block - the entire block that contains the expressions is to be evaluated in an unchecked context
• expression - a expression (in parentheses) is to be evaluated in a unchecked context only

public void Page_Load(object sender, EventArgs e)
{
   Response.Write(UncheckedTest());
}
public int UncheckedTest()
{
    // Unchecked used as a statement
    // Without this statement you will get the following error:
    // CS0220: The operation overflows at compile time in checked mode
    unchecked
    {
         // max int value multiplied by 2
         // which usually overflows
         int total = 2147483647 * 2;   
         return total;
    }
}