Question

I have code which I want to return each of those values to 1 dp:

        static void Main(string[] args)
    {
        decimal[] engine = { 2, 2.5M, 2.6M, 3 };
        engine = engine.Select(x => { x = Math.Round(x, 1); return x; }).ToArray();
        foreach (var item in engine)
        {
            Console.WriteLine(item);
        }
        Console.ReadLine();
    }

So it would output something like this in a console application:

2.0
2.5
2.6
3.0

But the problem is, it outputs:

2
2.5
2.6
3

How can I make it return whole numbers to 1dp?

Answer 1

Console.WriteLine(item.ToString("F1"));

See these links for more format strings:
http://msdn.microsoft.com/en-us/library/dwhawy9k.aspx
http://msdn.microsoft.com/en-us/library/0c899ak8.aspx