Solved

Crystal IF statement sometimes evaluates null. How is this possible?

Posted on 2014-09-24
2
233 Views
Last Modified: 2014-09-29
I have the follwoing IF statement in a formula and I was expected it to never evaluate null which is why the "none" is added at the end. I will be adding more to this formula but I want it to work thus far before I proceed.

If (Not(IsNull({ARACCOUNT.ZZACPENDINS}))) and ({ARACCOUNT.ZZACPENDINS} < 0.00) Then
    "Insurance balance is negative - Notify Kathy"
Else If ({ARACCOUNT.ZZACSPORIGAMT} = 0) Or (IsNull({ARACCOUNT.ZZACSPORIGAMT})) Then
        "No charges"
    Else If ({ARACCOUNT.ZZACSPORIGAMT} - {ARACCOUNT.ZZACSPINSPMT} - {ARACCOUNT.ZZACSPINSADJ} - {ARACCOUNT.ZZACSPPMT} - {ARACCOUNT.ZZACSPADJ}) <> {ARACCOUNT.ARACNBTOTINI} Then
            "Mathematical issue"
        Else
            "None"
0
Comment
Question by:altosax
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 101

Accepted Solution

by:
mlmcc earned 400 total points
ID: 40342841
You need to test for NULL first.

When Crystal evaluates a formula and  it encounters a NULL in a test other than IsNull , evaluation terminates and the value returned cannot be predicted.

Change your formula to

If (Not(IsNull({ARACCOUNT.ZZACPENDINS}))) and ({ARACCOUNT.ZZACPENDINS} < 0.00) Then
     "Insurance balance is negative - Notify Kathy"
 Else If (IsNull({ARACCOUNT.ZZACSPORIGAMT}))  OR ({ARACCOUNT.ZZACSPORIGAMT} = 0) Then
         "No charges"
  Else If ({ARACCOUNT.ZZACSPORIGAMT} - {ARACCOUNT.ZZACSPINSPMT} - {ARACCOUNT.ZZACSPINSADJ} - {ARACCOUNT.ZZACSPPMT} - {ARACCOUNT.ZZACSPADJ}) <> {ARACCOUNT.ARACNBTOTINI} Then
             "Mathematical issue"
         Else
             "None" 

Open in new window

If any of the fields in the final IF can be NULL you have to handle them also.

mlmcc
0
 
LVL 35

Assisted Solution

by:James0628
James0628 earned 100 total points
ID: 40343606
If you don't specifically need to see the nulls and just need to keep them from "breaking" your formula, then another option might be to change how CR handles nulls.

 More recent versions of CR have an option in the formula editor to control how CR handles nulls in a specific formula.

 Or, you can go to File > "Report Options" and check the "Convert database null values to default" option, but that will affect just about every formula in the report, so if there are any other formulas where you actually need to see null values, you may not want to use that setting.

 James
0

Featured Post

Enroll in June's Course of the Month

June’s Course of the Month is now available! Experts Exchange’s Premium Members, Team Accounts, and Qualified Experts have access to a complimentary course each month as part of their membership—an extra way to sharpen your skills and increase training.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is about my first experience with programming Arduino.
If you’re thinking to yourself “That description sounds a lot like two people doing the work that one could accomplish,” you’re not alone.
In this fifth video of the Xpdf series, we discuss and demonstrate the PDFdetach utility, which is able to list and, more importantly, extract attachments that are embedded in PDF files. It does this via a command line interface, making it suitable …
Six Sigma Control Plans

719 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question