hi, i am trying to pass the one string value from child component to parent component. but it is not firing. please help me to solve this issue. Thank you.


Child component code: -
 

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes" access="global" controller="AccountContactEventClass">
    
  <!--  <aura:registerEvent name="rollUpEventRaja1" type="c.rollUpEventRaja" /> -->
    
    	    <aura:registerEvent name="jaffraja123" type="c:eventraja"/>

    
    <aura:handler name="init" value="{!this}"  action="{!c.onloadingmethod}" />
    <aura:attribute name="contact" type="contact" default="{'sobjectType': 'contact',
                         'LastName': '',
                         'Phone': '',
                         'Title': '',
                         'AccountId': ''                                  
                           }"/>
    <aura:attribute name="result" type="string" />
    
    <ui:inputSelect label="Select Account:" class="optionClass" aura:id="InputSelectDynamic" change="{!c.accountSelected}" />
    
    <br/><br/>
    
    Insert new contact.
                                               
     
  LastName:   <ui:inputtext value="{!v.contact.LastName}" />
    Phone :     <Ui:inputtext value="{!v.contact.Phone}" />
    Title :    <ui:inputtext value="{!v.contact.Title}" />  
    Department:  <ui:inputtext value="{!v.contact.Department}" />
    <br/><br/>
    <ui:button label="Insert contact" press="{!c.insertcontact}" />
    
    ...The reslt is: -  {!v.result}.....
    
</aura:component>
















({
  // Method for displaying the all account names in a picklist value . Loading intially.
         

    onloadingmethod :function(component, event, helper) {
 
        var apexmeth = component.get("c.callaccounts");
         
        // setting call back.
        apexmeth.setCallback(this, function(data) {
           var state = data.getState();
            console.log('the state init',state); 
            if(state == "SUCCESS")
            {
                var arryRecs =[];
                
                var apexRecs = data.getReturnValue();
                
                for(var i=0;i<apexRecs.length;i++)
                {
                    var cuurentApexRec = apexRecs[i];
                    console.log('the rec names are: ',cuurentApexRec.Name);
                    
                      arryRecs.push({"class": "optionClass", label: cuurentApexRec.Name, value: cuurentApexRec.Id});
                }
                 var inputsel = component.find("InputSelectDynamic");
                 inputsel.set("v.options", arryRecs);        
            }
            else
            {
                alert('The state us error while calling the init method');
            }
            
        });
         $A.enqueueAction(apexmeth);
    },
    
    
    
    
    
    // Method for inseting new contact with the selected account id from the picklist value.
    
	insertcontact : function(component, event, helper) {
		// calling the value from the component user inputs.
        var con = component.get("v.contact");
        console.log('1st log: '+ con);
        // calling the apex class method.
        var apexclass = component.get('c.getcreateContact');
        
        // setting call bank and passing the contact as paramter to the apex class.
        //  con.AccountId = '0012800000zemil';
        //  Getting the account id selected from the front end user picklist. 
        var selectedAcc = component.find("InputSelectDynamic").get("v.value");  
        con.AccountId = selectedAcc;
        apexclass.setParams({
            "con" : con
        });
        
        var ContactInsertedAccount ;
        apexclass.setCallback(this,function(data){
            var state = data.getState();
            
            console.log('the state is : '+state);
            if(state =="SUCCESS")
            {
                console.log('The return val is: ', data.getReturnValue());
                component.set("v.result",data.getReturnValue());
                ContactInsertedAccount = data.getReturnValue();
            }
            else{
                alert('error during calling the callback function');
            }
            
        });
        
        
     //adds the server-side action to the queue        
        $A.enqueueAction(apexclass);
          ContactInsertedAccount ="tesing jaff passing";
        var searchCompleteEvent = component.getEvent("rollUpEventRaja1");
      /*  console.log("event called :"+JSON.stringify(searchCompleteEvent));
  
      
        
       var status1 = searchCompleteEvent.setParams({ "accName": ContactInsertedAccount }).fire();
        console.log('The stats if fire is : ',status1);  */
        
         var searchCompleteEvent = component.getEvent("jaffraja123");
        console.log("event called :"+JSON.stringify(searchCompleteEvent));

    searchCompleteEvent.setParams({ "variable123": ContactInsertedAccount }).fire();

	},
    


    accountSelected : function(component)
    {
       var selectedAcc = component.find("InputSelectDynamic").get("v.value");  
        
        console.log('the slectesd val is acc : '+selectedAcc);
        
    },
    
    
})

Parent component :-
 

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes" access="global" controller="AccountContactEventClass">
    
    <aura:handler name="init" value="{!this}" action="{!c.loadRollUpsummary}" />
    <aura:attribute name="accoutRollUps" type="AccountContactEventClass.ReportExample" />
     
 <!-- <aura:handler name="rollUpEventRaja1"  event="c:rollUpEventRaja" action="{!c.showAccName}"/>   -->
    <aura:handler name="jaffraja123"  event="c:eventraja" action="{!c.myAction}"/> 
    
   <!-- <ui:outputtext aura:id="accname" />
    <ui:outputtext aura:id="rollupcount" /> -->
    
    List of Accounts with Rollup contacts count. 
	
    <table>
        <tr><td>Name</td><td>Total Contacts</td></tr>
    <aura:iteration items="{!v.accoutRollUps}" var="acc" >
    <tr><td>{!acc.accName}</td><td>{!acc.totalContacts}</td></tr>
        
    
    </aura:iteration>
    </table>
</aura:component>










({
	loadRollUpsummary :function(component,event)
    {
        var apexmeth = component.get("c.rollUpContacts");
        
        apexmeth.setCallback(this,function(data){
            
            var accsData = data.getReturnValue();
            console.log('The data is : ',accsData.accName );
            component.set("v.accoutRollUps",accsData);
            
        });
        $A.enqueueAction(apexmeth);       
        
    },
    
    showAccName : function(component,event)
    {
         
       // component.find("v.accname").set(event.getParam("accName")); 
        console.log('The value of event is: ', event.getParam("variable123"));
    
    } 
  
})

Event:-
 

<aura:event type="component"  >
    <aura:attribute name="variable123" type="string" />
</aura:event>