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Old February 14th, 2004, 09:11 PM
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Default Calculation

I think this is one of those times when I'm missing the obvious. I want a range of numbers in a bound text box to return a number in another bound text box in the same form. Ex: If [FinanceAmount]is between 1 and 30, [DailyCost]returns "1", if [FinanceAmount]is between 31 and 60, [DailyCost]returns "2", and so on. I've been able to do it for one level only using an IIF expression, but could not get it to go further. I done much more complicated calculations and it seems I should know the answer to this, but I just keep drawing a blank. What am I missing. (Be gentle!)
 
Old February 14th, 2004, 09:16 PM
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Hi there,
   Here is one possible solution.

   Put this in the after update of the first text box.

   SELECT CASE me.txtFirstTextBox
   Case 1 to 30
     Me.txtSecondTextBox = 1
   Case 21 to 60
     Me.txtSecondTextBox = 2
   'you get the picture
   End Select

HTH,
Mike
 
Old February 15th, 2004, 05:26 PM
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Or - if you prefer to keep using the IIF expression, you could do this:

iif([condition1],[returnvalue1],iif([condition2],[returnvalue2],iif([condition3],[returnvalue3],[returnvalue4])))

Basically, if you want to nest iif statements, just keep on adding new iif statements to the "else" part of the statement. The main thing you have to make sure you do, however, is to have an "else" statement right at the end ([returnvalue4] in the above example), and have the right amount of closing parentheses, which is easy to do: just count the number of times "iif" shows up in your expression, and put that many closing parentheses at the end (in my example, "iif" is in there 3 times, so there's 3 closing parentheses)

But, especially given that you're using this in a form, I would do as Mike says, and use a Select Case statement. You should only nest "iif" statements if you cant use Select Case statements.
But as a fallback, you should also always have a "Case Else" part in your statement, in case something odd happens, such as:
Code:
SELECT CASE me.txtFirstTextBox
   Case 1 to 30
     Me.txtSecondTextBox = 1
   Case 21 to 60
     Me.txtSecondTextBox = 2
   'And so on
   Case Else
     Me.txtSecondTextBox = -1
     MsgBox "Oh no! something bad happened! Oh what a world"
   End Select
HTH

Steven

I am a loud man with a very large hat. This means I am in charge
(Edited due to typo)
 
Old February 16th, 2004, 10:14 AM
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Dataman and Steven,

Both solutions seem obvious to me NOW. I've used the SELECT CASE Statement with Case Else and it does the job perfectly. Thanks for the help.




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