topic Re: How do I write this expression the Archicad way? in Project data & BIM

How do I write this expression the Archicad way?

Mats Knutsson — Tue, 07 Nov 2023 22:32:17 GMT

I have a string property "House" as option set with A,B,C as values.

I want to write an expression for the property "FM" like below:

IF home story =1 AND House = A THEN FM = "A1" ELSEIF home story =2 AND House = A THEN FM = "A2" ELSEIF home story =1 AND House = B THEN FM = "B1" ELSE FM="no value" ENDIF

I tried just a two basic IF - AND expressions but I am doing something wrong...what could it be?

IF ( AND ( Home Story Number = 1; House = "A" ); "1A"; "-" )

IF ( AND ( Home Story Number = 2; House = "A" ); "2A"; "-" )

The first IF sentence decides everything and gives FM=1A for everything on story 1 with House = A but for all others it returns "no value"...

Re: How do I write this expression the Archicad way?

DGSketcher — Mon, 06 Nov 2023 12:02:08 GMT

With Properties they handle IF differently for multiple conditions. Have a look at THIS.

In your examples you are also using ; instead of a basic , between arguments.

Re: How do I write this expression the Archicad way?

Mats Knutsson — Tue, 07 Nov 2023 22:32:47 GMT

Got it. Thanx! I did try IFS at first but couldn't get it to work... It was becuse I used too many brackets.

I'd like more examples in the GS learning material...like my code below.

I'm on Swedish Windows and we use ; instead of , (highly irritating when trying to follow international tutorials).

IFS ( AND ( Home Story Number = 1; House = "C" ); "1C"; AND ( Home Story Number = 2; House = "C" ); "2C" )

Re: How do I write this expression the Archicad way?

Yves — Mon, 06 Nov 2023 12:35:20 GMT

Hi,
We could also write it simply like this

CONCAT ( {Property:Généralités/House}; STR ( {Property:Paramètres généraux/Numéro d'étage d'implantation}; 0 ) )

Or better

IF ( ISUNDEFINED ( {Property:Généralités/House} ); "-"; CONCAT ( {Property:Généralités/House}; STR ( {Property:Paramètres généraux/Numéro d'étage d'implantation}; 0 ) ) )