VB.net: Displaying certain portions of a decimal value

Question

In vb.net I want to pull out the wholenumber, decimal, first 2 decimal places and 3rd and 4th decimals. I've been circling around the solution but not quite there.

The code I have so far is here:

 Dim wholenumber As Decimal
    wholenumber = 15.1234

    ' Displays 15
    MsgBox("The whole number is " & Math.Floor(wholenumber))
    ' Displays .1234
    MsgBox("The decimals are " & wholenumber - Math.Floor(wholenumber))
    ' Displays .12
    MsgBox("The first 2 decimals are" & ?????)
    ' Displays .0034
    MsgBox("The third and fourth decimals are " & ????)

Answer 1

You want to use a format specifier when calling .ToString() on your numeric values (which is currently being called implicitly in your code, but should probably be explicit).

For example, wholenumber.ToString("##.###") should return "15.123".

More information can be found here, and tons of information and examples can be found by Googling something like ".net string formatting".