Question

How can I use ifelse statement in the change object tool？

0

for example, if TimeLeft > 0, TimeLeft=Time/TimeLeft – 1, else TimeLeft = TimeLeft

asked 2021-07-22

z k

6 answers

Shreyash Mehta · Answer 1 · 2021-07-22

Assuming $TimeLeft is a variable of the same type as TimeLeft attribute of entity Time

if $TimeLeft > 0 then

$Time/TimeLeft – 1

else

$TimeLeft

Jermaine Ivo · Answer 2 · 2021-07-22

Hello,

Take a look at: https://docs.mendix.com/refguide/if-expressions for the documentation

For your specific case:
if TimeLeft > 0
then TimeLeft=Time/TimeLeft – 1
else
TimeLeft = TimeLeft

Mike Kumpf · Answer 3 · 2021-07-22

if $Time/TimeLeft > 0
then
  $Time/TimeLeft - 1
else
  $Time/TimeLeft

Robert Price · Answer 4 · 2021-07-22

Yes, you can use it in the Change Object action.

You’ll need something like this

if ($Time/TimeLeft > 0) then
  $Time/TimeLeft – 1

Ronald Catersels · Answer 5 · 2021-07-22

Like this:

Regards,

Ronald

Henri Schellingerhout · Answer 6 · 2021-07-27

In addition to those answers, it’s recommended to check first if TimeLeft is not empty. If it’s empty you will get an error.

if $Time/TimeLeft != empty and $Time/TimeLeft > 0 then
   $Time/TimeLeft - 1
else
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