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golugolu 

passing value from one component to another

Hi, 
I am trying to pass the value from one component to another with attributes but it is not working . Can anyone please help?
I want to send the value from lightningLookupComponent to sendSMS_report component. I want to pass the value of "selItem" to sendSMS_report controller.
Below is the code for lightningLookupComponent:
<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction">
    <aura:attribute Name="selItem" type="object"  access="public" /> 
    <aura:attribute Name="selItem1" type="object"  access="public" />
    <aura:attribute Name="selItem2" type="object"  access="public" />
    <aura:attribute Name="selItem3" type="object"  access="public" />
    <div class="slds">
        <div class="slds-grid slds-wrap">
            <div class="slds-size_1-of-1 
                        slds-small-size_1-of-1 
                        slds-medium-size_1-of-2 
                        slds-large-size_1-of-4 ">
                <c:lightningLookup objectName="Report"
                          field_API_text="Name"
                          field_API_val="Id"
                          limit="4"
                          field_API_search="Name"
                          lookupIcon="standard:report" 
                          selItem="{!v.selItem}" 
                          placeholder="Enter space after text to search report"
                          />  
                
                <aura:if isTrue="{! not(empty(v.selItem)) }"> 
                    <br />
                    This is Parent Lightning component <br />
                    Item Selected : <br />
                    ID - {#v.selItem.val} <br /> 
                    Text - {#v.selItem.text}<br />
                    Object - {#v.selItem.objName}<br />
                    <c:sendSMS_Report/>
                </aura:if> 
            </div>
            
    </div>
    </div>
</aura:component>

Code for sendSMS_report controller. I want to pass the values in one of the setPrams function.
({
   sendNowOrLater : function(component, event, helper, caller){
       $A.util.toggleClass(component.find("mySpinner"),"slds-show");
       var action;
       if(caller == 'sendReportSMSNow'){
           action = component.get("c.sendSMS_Report");
           action.setParams({ 
           message          :   component.get("v.selectedTemplateBody"),
           recordId         :   component.get("v.recordId")
           
       });
       }else{
           action = component.get("c.sendSMS_Report");
           action.setParams({ 
           scheduleDateTime :   component.get("v.scheduleDateTime"),
           message          :   component.get("v.selectedTemplateBody"),
           recordId         :   component.get("v.recordId")
           
       });
       }
       console.log(action);
       
       action.setCallback(this, function(response) {
           var state = response.getState();
           if (state === "SUCCESS") {
               
               $A.util.toggleClass(component.find("mySpinner"),"slds-hide");
               var toastEvent = $A.get("e.force:showToast"); //
               /**/
               toastEvent.setParams({
                   title: "Success!",
                   message: "The record has been created successfully ."
                   
               });
               toastEvent.fire();
               var modal = component.find("Modal");
               $A.util.addClass(modal, 'hideDiv');
               var dismissActionPanel = $A.get("e.force:closeQuickAction"); 
               dismissActionPanel.fire(); 
               
               
           }else if (state === "ERROR") {
               var errors = response.getError();
               if (errors) {
                   if (errors[0] && errors[0].message) {
                       var dismissActionPanel = $A.get("e.force:closeQuickAction"); 
                       dismissActionPanel.fire(); 
                       var toastEvent = $A.get("e.force:showToast"); // //
                       toastEvent.setParams({
                           title: "Failed",
                           message: "The record was not saved"
                           
                       });
                       toastEvent.fire();
                   }
               } 
           }     
       });
       $A.enqueueAction(action);
   }
})



 
Raj VakatiRaj Vakati
There is the way you can able to do it... 
  1. You can use the events 
  2. you can use the lightning:isUrlAddressable 
https://developer.salesforce.com/docs/component-library/bundle/lightning:isUrlAddressable/documentation
http://bobbuzzard.blogspot.com/2018/05/lightning-component-navigation-in.html
https://www.sfdcstuff.com/2018/09/lightningisurladdressable-interface-way.html