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pozil/componentEvent.evt

Last active June 27, 2021 06:52
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Lightning - Passing data up the component hierarchy via a component event
Raw
componentEvent.evt
<aura:event type="COMPONENT">
<aura:attribute name="param" type="String"/>
</aura:event>
Raw
componentEventReceiver.cmp
<aura:component>
<aura:handler name="myComponentEvent" event="c:componentEvent" action="{!c.handleMyComponentEvent}"/>
<c:componentEventSender/>
</aura:component>
Raw
componentEventReceiverController.js
({
handleMyComponentEvent : function(component, event, helper) {
var value = event.getParam("param");
alert("Received component event with param = "+ value);
}
})
Raw
componentEventSender.cmp
<aura:component>
<aura:registerEvent name="myComponentEvent" type="c:componentEvent"/>
<lightning:button label="Fire component event" onclick="{! c.fireMyComponentEvent }" />
</aura:component>
Raw
componentEventSenderController.js
({
fireMyComponentEvent : function(component, event, helper) {
var myEvent = component.getEvent("myComponentEvent");
myEvent.setParams({"param": "It works!"});
myEvent.fire();
}
})
@AjManoj
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AjManoj commented Jan 21, 2019 •
edited
Loading

for some reason it doesn't in some situations even i tried,not sure what is the exact cause

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