topic Re: Evaluate Expression as String in Extension in Integration, Extension & APIs

Evaluate Expression as String in Extension

TKendrick20 — Mon, 25 Jul 2016 20:31:11 GMT

I am building a listbox extension and in the ,js file I'd like to evaluate an expression with something like app.Evaluate(*string*).

Specifically, I want to get the COUNT of the values in a field before a selection is made in the listbox.

Is this possible?

Re: Evaluate Expression as String in Extension

Stefan_Walther — Mon, 25 Jul 2016 23:24:20 GMT

Can you pls explain a bit more in detail what you are trying to achieve, maybe with some code samples?

Re: Evaluate Expression as String in Extension

TKendrick20 — Tue, 26 Jul 2016 12:49:09 GMT

Before I call this line in my listbox extension:

self.backendApi.selectValues(dim, [value], true);

I want to first check the calculation of an expression which, in layman's terms, says "If selecting the value that you just clicked on would make another expression < 1, do not allow the selection."

If (expression < 1)

Make the selection

else

Do not

The question is, how can I calculate the result of this expression on the fly?