How to elegantly check if a number is within a range?

Question

How can I do this elegantly with C# and .NET 3.5/4?

For example, a number can be between 1 and 100.

I know a simple if would suffice; but the keyword to this

Answer 1

If you are concerned with the comment by @Daap on the accepted answer and can only pass the value once, you could try one of the following

bool TestRangeDistance (int numberToCheck, int bottom, int distance)
{
  return (numberToCheck >= bottom && numberToCheck <= bottom+distance);
}

//var t = TestRangeDistance(10, somelist.Count()-5, 10);

or

bool TestRangeMargin (int numberToCheck, int target, int margin)
{
  return (numberToCheck >= target-margin && numberToCheck <= target+margin);
}

//var t = TestRangeMargin(10, somelist.Count(), 5);