>>>In .NET you can use math.truncate(number*10)/10
>>>
>>>Thanks - I should have thought of that myself.
>>
>>Why the truncate function doesn't allow you to truncate at a certain position is one of those 'what were they thinking when they designed it' questions..
>
>Maybe a simple extension method. Something like :

public static decimal Trunc(this decimal d, int digits)
>        {
>            decimal mult = (decimal) Math.Pow(10, digits);
>            return Math.Truncate(d * mult) / mult;
>        }

Then:

Decimal d = 1.2344567M;
>var s = d.Trunc(4);

Another flavour

		public static decimal Trunc(this decimal d, int digits)
		{
			return d - (d % (decimal)Math.Pow(10, -digits));
		}