Rounding Up to the nearest 100

[acyrusinc]

Please give me some advice with regards to rounding a numerical figure up to the nearest hundred.
EG: 256 >> 300
654 >> 700
15 >> 100
I would like to know the formula to enter into Visual Basic 2008. I'm making a calculator Program, and i need a function that rounds up to the nearest 100...

Please help

[Frinavale]

Use the Math.Round method.

-Frinny

[acyrusinc]

This is my formula so far:

Label6.Text = Math.Round(Label5.Text / 100, 0) * 100

It rounding to the nearest 10 at the moment (43>>40; 47>>50)
I need it to round up to the nearest 100

So if it's: 43>>100
59>>100
97>>100
101>>200
3980>>4000
You get the point

How do i achieve this?

[lyodmichael]

hmm, if you want you can use if label5.text < 100 or > 0 .

#tip

[acyrusinc]

how do i write that into the formula?
I'm really really new at this
sorry

[Frinavale]

Well first you need to divide the value that you are rounding by 100. This will give you a double value which you can round. Once you have that, you can multiply it by 100 to round to the nearest 100.

private static int RoundValueToNearst100(double value)
{
  int result =(int) Math.Round(value / 100);
  if (value > 0 && result == 0) {
    result = 1;
  }
  return (int) result * 100;
}

-Frinny