[RESOLVED] Removing decimal numbers from output

Hi all,

Quick question: When you've calculated a number, if that number has a long decimal, how can you remove it before output?

For example, if the variable "X" is storing the number 480.3392, how can you make it output just 480.33 ?

The problem with this is that A) the number of X is unknown and B) the length of X is unknown, in other words it could be "8" or "4029.48560", so I can't perform a snip using Mid$. I just want to output the whole number and two decimal point numbers.

Any ideas?

Thanks :)

use the Format function.

VB Code:

format(YourNumber, "0.00")

Depends what you want. You can format it.

VB Code:

msgbox format("234.238","#.##") ' 234.24

or you can use InStr() to find the location of the decimal point, and add the next two characters.

Ahh! Awesome, thanks :)

dglienna, how would I use the InStr command? (The syntax)

Oh, I'm also trying to put some code into a text cbox to stop people from putting two .s in and causing it to crash.. my current code works for two .s in a row, but is there an easier way of doing it when they are placed apart?

Current code:

Code:

---

Private Sub ICost_KeyPress(KeyAscii As Integer)
MsgBox WatchDots
If WatchDots = True Then
    If (KeyAscii = 46) Then
        MsgBox "Error! You may only have one .", vbCritical, "Error!"
        KeyAscii = 0
        ICost.Text = ""
        WatchDots = False
        Exit Sub
    End If
End If

If (KeyAscii = 46) Then
    WatchDots = True
ElseIf (KeyAscii = 8) Or (KeyAscii < 48) Or (KeyAscii > 57) Then
    WatchDots = False
End If

If (KeyAscii = 8) Or (KeyAscii = 9) Or (KeyAscii = 46) Then Exit Sub
If (KeyAscii < 48) Or (KeyAscii > 57) Then
    KeyAscii = 0
    MsgBox "Please input only a number in the form: 45 or: 21.90 (Examples)"
End If
End Sub

---

It sort-of works (since the max length is 6, so it makes it a bit tricky to bypass easily, but it still possible). I could remove the line that makes it false, but then it would stay as "true" after they clear the textbox and type a new value, and would stop them typing a new value. There's a couple of possible work-arounds that I thought of, including having it without the line that makes it false, but them when they hit "Calculate", making it clear the text fields and reset it to false, or having a "Clear boxes" button that clears the values and sets it to false.. but I'm sure there's an easier way than that?

This finds the first "." in a string.

VB Code:

Option Explicit
 
Private Sub Form_Load()
  Dim nm As String
  Dim x As Integer
  nm = "234.239999"
  x = InStr(nm, ".")
  MsgBox Left$(nm, x + 2) ' 234.23
End Sub

and add's 2, to include the two characters afterwards.

Ahh, that's great too, thanks! :)

Any ideas for the second part of my problem in the last question? (Tacking .s to make sure there aren't two of them in the same text field)


Ohh, also, I've just implemented some code that I found here to make the program always on top:

Code:

---


Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Private Const HWND_TOPMOST = -1
Private Const HWND_NOTOPMOST = -2
Private Const SWP_NOMOVE = 2
Private Const SWP_NOSIZE = 1
Private Const FLAGS = SWP_NOMOVE Or SWP_NOSIZE

---

Code:

---

SetWindowPos Me.hwnd, HWND_TOPMOST, 0, 0, 0, 0, FLAGS

---

What would the opposite of that call (SetWindowPos Me.hwnd, HWND_TOPMOST, 0, 0, 0, 0, FLAGS) be? In other words, to make it not always on top anymore. I currently have it in a yes/no messagebox on form_load but I'd like to make it an "Always on top checkbox"

Thanks ^_^

You may want to limit the input to only numbers. There is code on the forums that let you do this. Whatever you do, you'd have to reset the counter at some point, if the user is going to enter a new number. You could use the masked edit control to format the text as they type, if it always has to be a certain format, but that would require that they enter every character before they left the control. It's good for phone numbers and zip codes.

I was going to limit to only numbers, but the problem is they need to be able to enter a . for a decimal point.. I guess I could make it whole numbers only, a few pence either way should matter that much anyway.

Thanks ^_^