Button clicked twice does not appear to function

RE: Button clicked twice does not appear to function

stevenh6272 — Wed, 01 Nov 2023 13:23:01 GMT

Changed it to use refreshAlways. Thanks, again.

RE: Button clicked twice does not appear to function

Stefan Helzle — Tue, 31 Oct 2023 20:49:34 GMT

Maybe this helps

docs.appian.com/.../SAIL_Performance.html

RE: Button clicked twice does not appear to function

stevenh6272 — Tue, 31 Oct 2023 20:43:45 GMT

The next developer will be future me 3 months or so from now.... and I will definitely forget.

The help text for refreshAlways is scary.... but I don't yet understand all the nuances of Appian.

RE: Button clicked twice does not appear to function

Stefan Helzle — Tue, 31 Oct 2023 20:39:16 GMT

RefreshAlways is the better option. This expression is only evaluated when that button is pressed. So is the call. This x+1 thing might only confuse the next developer touching this.

RE: Button clicked twice does not appear to function

stevenh6272 — Tue, 31 Oct 2023 20:36:13 GMT

Ok, I wrapped the local var in the expression with refreshVariable using refreshOnVarChange (I did not wanting it to refresh every user interaction since it calls a web service)... I passed in a dummy value that I constantly change (x = x+1) and that works!

Thanks, Stefan.

RE: Button clicked twice does not appear to function

Stefan Helzle — Tue, 31 Oct 2023 17:09:58 GMT

Yeah, and the button is not the problem ...

RE: Button clicked twice does not appear to function

stevenh6272 — Tue, 31 Oct 2023 16:44:53 GMT

I think the answer is yes. I have the local!refreshResult local variable that is only set by the call this button makes to the expression rule which refreshes the data.

I can try using a!refreshVariable and see what happens. My other solution (using the term more loosely than I care to) is to use two buttons, idendically configured, and alternately show/hide them. But, I don't really like doing this.

RE: Button clicked twice does not appear to function

Stefan Helzle — Tue, 31 Oct 2023 16:40:32 GMT

Do you use a local variable inside that expression? If yes, wrap it into a a!refreshVariable call, configured to refresh always.

Appian tries to be smart and caches the data if the rule input values do not change.