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inside custom component

Native Development

New Contributor
Posts: 9
Registered: ‎04-16-2013
My Device: BB 10 Developer
My Carrier: --
Accepted Solution

attachedObject inside a signal?

[ Edited ]



Is it possible to check(/call?) a signal inside of the attachedObject brackets, for example inside of a checkbox component?


CheckBox {


attachedObjects: [

   SystemToast {

      onCheckedChanged: {...}









***Partial ANSWER & EDIT***

Don't nest them like that. Just call toastID.show() in the signal you wanted it associated with.


Still wondering best way/how to put logic inside of a system toast. For example, to make it say one thing if the box is checked, another if it is unchecked.

Posts: 107
Registered: ‎05-11-2011
My Device: BlackBerry Z10 LE
My Carrier: AirTel

Re: attachedObject inside a signal?



yes of course, you can take take advantage of SIGNAL and SLOT mechanism.

onCheckedChanged: {...} is a predefined handler for checkedChanged signal.

you can connect checkedChanged to your own function.

here code for you, try this


import bb.cascades 1.0
import bb.system 1.0

Page {
    Container {
        CheckBox {
            id: checkBox
            text: "check me"

            onCreationCompleted: {

            attachedObjects: [
                SystemToast {
                    id: myToast
                    body: "So long! Thanks for coming, see you next time!"

                    function onCheckHandler(checked) {
                        body = "Item checked : " + checked;