Showing posts with label Truncate Decimal. Show all posts
Showing posts with label Truncate Decimal. Show all posts

Wednesday, 23 March 2011

Using VBA to Truncate Decimal Values

Recently I have needed to truncate a decimal value to a set number of decimal places. 

For example; If you wanted the number 55.446 to two decimal places rounding the number would return 55.45.  Truncating the number to two decimal places returns 55.44. 

To do this I created the function below.  Pass in a decimal value and the number of decimal places you want the number truncated too and the function returns the value as a ‘Double’.

Public Function TruncTo(dblValue As Double, lngPlaces As Long) As Double
'-------------------------------------------------------------------------
' Procedure : TruncTo
' Author    : Matthew Sims
' Date      : 08-Oct-2010
' Purpose   : Truncate a decimal value to the requested number of decimal places
'-------------------------------------------------------------------------
'
    On Error GoTo TruncTo_Error

    If IsNumeric(dblValue) Then
        TruncTo = Int(dblValue * 10 ^ lngPlaces) / 10 ^ lngPlaces
    Else
        TruncTo = 0
    End If

    On Error GoTo 0
    Exit Function

TruncTo_Error:
    ' Add some error handling code here
End Function