Unable to return the list after deleting the record on specific tab:

Question

public PageReference deleteRecord ()

        {

            ID rid = ApexPages.currentPage().getParameters().get('ruleID');

            String runQuery='select  Name  from Candidate__c where \''+rid+'\'';

            List<Candidate__c>  listdel = Database.Query(runQuery);

            delete listdel;
            PageReference deletepage=nePageReference('/apex/EmployeeDetailpageid='+userid);

             tabOpt = 'empref';

             deletepage.setRedirect(true);

            return deletepage ;

        } 

Answer 1

public PageReference deleteRecord()
{
 ID rid = ApexPages.currentPage().getParameters().get('ruleID');
String runQuery='select  Name  from Candidate__c where id= \''+rid+'\'';

        List<Candidate__c>  listdel = Database.Query(runQuery);           
         delete listdel;
Candidate[Selectid,Name, Status__c,CreatedDate, Email_ID__c, Employee__c, Experience__c, Technology__c from Candidate__c WHERE Employee__c =: userid ];

PageReference deletepage=newPageReference('/apex/EmployeeDetailpageid='+userid);

        tabOpt = 'empref';
        deletepage.setRedirect(false);             
        return deletepage ;

    }