Question Re: Handler for Button not called in adaptation in Technology Q&A

Handler for Button not called in adaptation

Boguslaw — Tue, 08 Jul 2025 09:33:43 GMT

Hello everybody,

I try to extend a standard App "Create maintenance request" (F1511A). I have added a Fragment with button and the button is available:

My Fragment look like this:

<core:FragmentDefinition xmlns:core='sap.ui.core' xmlns='sap.m'> <Button id='LorCapBtn' text="LorCap" press='extension.customer.create.notif.variant.onLorCapPress'/> </core:FragmentDefinition>

The controller:

sap.ui.define( [ 'sap/ui/core/mvc/ControllerExtension' ,'sap/m/MessageBox' // ,'sap/ui/core/mvc/OverrideExecution' ], function ( ControllerExtension ,MessageBox // ,OverrideExecution ) { 'use strict'; return ControllerExtension.extend("customer.create.notif.variant.MainCntrlExt", { onLorCapPress : function(oEvent){ console.log("onLorCapPress called"); MessageBox.success("Hello"); }, }); } );

When I press the button nothing happened (no massege box, no message in console).

Do you know what is the problem? What have to be done to run my code?

Regards,

Boguslaw

Re: Handler for Button not called in adaptation

FabioPagoti — Tue, 08 Jul 2025 09:39:55 GMT

<core:FragmentDefinition xmlns:core='sap.ui.core' xmlns='sap.m'> <Button id='LorCapBtn' text="LorCap" press='.onLorCapPress'/> </core:FragmentDefinition>

have you tried this?

Re: Handler for Button not called in adaptation

Boguslaw — Tue, 08 Jul 2025 09:52:40 GMT

Hi Fabio, thx for your answer. I have just tried your proposal - it does'n work. In SAP Fioti Toll user guide is decribed that the function name for press event should have a prefix ".extension.<controller extension namespace>."

Re: Handler for Button not called in adaptation

FabioPagoti — Tue, 08 Jul 2025 09:57:25 GMT

Please share the manifest where extensions are declared as well

Re: Handler for Button not called in adaptation

junwu — Tue, 08 Jul 2025 13:39:03 GMT

Probably you are missing the . before the extension, MainCntrlExt is also missed

<core:FragmentDefinition xmlns:core='sap.ui.core' xmlns='sap.m'>
    <Button id='LorCapBtn' text="LorCap" press='.extension.customer.create.notif.variant.MainCntrlExt.onLorCapPress'/> 
</core:FragmentDefinition>

Re: Handler for Button not called in adaptation

Boguslaw — Tue, 08 Jul 2025 13:46:57 GMT

Hi Junwu, thx for your hint - the dot was missing, the second part the was missing as well, was the cntroller name. The correct path to my handler is:

<core:FragmentDefinition xmlns:core='sap.ui.core' xmlns='sap.m'> <Button id='LorCapBtn' text="LorCap" press='.extension.customer.create.notif.variant.MainCntrlExt.onLorCapPress'/> </core:FragmentDefinition>

Re: Handler for Button not called in adaptation

Marian_Zeis — Tue, 08 Jul 2025 20:01:45 GMT

I think your namespace in the button is wrong, you're missing MainCntrlExt

Try:

.extension.customer.create.notif.variant.MainCntrlExt.onLorCapPress

Re: Handler for Button not called in adaptation

Marian_Zeis — Tue, 08 Jul 2025 20:02:44 GMT

Oh, I'm on mobile and did not see the answer, good to know I got the right answer 😄

Re: Handler for Button not called in adaptation

Boguslaw — Tue, 08 Jul 2025 20:06:45 GMT

Thank you anyway 🙂