I have on requirement :
I want to retrive the contact records which are related to account, I wrote standardset controller but i am uanable to display the records i Visualforce Page
Can you please help me;
<apex:page controller="TrAccountrelatedContacrs">
  <apex:form >
      <apex:pageBlock >
          <apex:pageBlockSection >
              <apex:pageBlockTable value="{!conList}" var="i">
                  <apex:column value="{!i.cat.Name}"/>
              </apex:pageBlockTable>
              <!--<apex:pageBlockTable value="{!cont}" var="co">
                  <apex:column value="{!co.name}"/>
              </apex:pageBlockTable>-->
          </apex:pageBlockSection>
      </apex:pageBlock>
     
  </apex:form>
</apex:page>
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Controlller:
public class TrAccountrelatedContacrs {
    public List<AccountWrapper>  conList = new List<AccountWrapper>();
    //List<Account> conList {get;set;}
   
    public ApexPages.StandardSetController con {
        get{
            if(con==null){
                con = new ApexPages.StandardSetController(Database.getQueryLocator([select id, Account.name,(select Name,Contact.FirstName,Contact.LastName from account.Contacts) from Account limit 100]));
                system.debug('############'+con);
                con.setPagesize(10);
            }
            return con;
        }
        set;
    }
    public List<AccountWrapper> getconList(){
        conList = new List<AccountWrapper>();
        for(Account e : (List<Account>)con.getRecords())
            conList.add(new AccountWrapper(e));// 
        return conList;
    }
    public Boolean hasNext {
        get{
            return con.getHasNext();
        }
        set;
    }
    public Boolean hasPrevious{
        get{
            return con.getHasPrevious();           
    }
    set;
    }
    public Integer PageNumber{
        get{
            return con.getPageNumber();
        }
        set;
    }
    public void first(){
        con.first();
    }
    public void last(){
        con.last();
    }
    public void previous(){
        con.previous();
    }
    public void next(){
        con.next();
    }
    public void cancel(){
        con.cancel();
    }
   
    public class AccountWrapper {
        public boolean checked {get;set;}
        public Account cat {get;set;}
        public AccountWrapper(){
            cat = new Account();
            checked = false;
        }
        public AccountWrapper(Account c){
          cat =c;
          checked = false;
        }
    }
    public class ContactWrapper{
        public contact cont {get;set;}
        public ContactWrapper(contact e){
           cont = new contact();
        }
    }

}

Thanks in Advance