Decimal/double to integer - round up (not just to nearest)

Question

How would you round up a decimal or float to an integer. For instance...

0.0 => 0 0.1 => 1 1.1 => 2 1.7 => 2 2.1 => 3 

Etc.

Answer 1

Simple, use Math.Ceiling:

var wholeNumber = (int)Math.Ceiling(fractionalNumber);