String Evaluation to a Number?

1

Is this something that should yield a valid result?

IF CLIP(LOC:ExcludeNonMembers) >= '100' ...

I want to test for values that are 100 or above (obviously).

LOC:ExcludeNonMembers is a STRING. I know things would go much better if it were numeric, but for various reasons, a string is best.
thanks

2

the trouble is (I think) you want to do numeric comparisons but you are showing a string comparison.

it can be a bit confusing because Clarion often automatically converts strings to numbers for you.

but if you think about it, say LOC:ExcludeNonMembers had the value ‘8’. That is going to be greater than a string ‘100’ because it will compare the first digit and say “8 is greater than 1” and doesn’t need to go any further.

BUT if you get rid of the quotes on ‘100’ and do a numeric comparison

LOC:ExcludeNonMembers >= 100

you should be right to go.

BTW get rid of the useless clip()

you might want to decide what if LOC:ExcludeNonMembers has letters like ‘abc’. In that case it would convert to a number zero as it is not numeric. There are tricks you can do like

if deformat(LOC:ExcludeNonMembers) >= 100

as deformat will strip out non-numeric chars.

you could also look at using Evaluate() instead - read the help and make sure you bind fields.

hth and cheers

Geoff R

3 Likes
3 
If numeric(loc:excludeNonMembers) and loc:excludeNonMembers >= 100
  ! Do whatever.
1 Like
4

thank you - problem fixed thanks to your help!! This is how I ended up coding the IF:

IF LOC:ExcludeNonMembers >= 100