public class ManageListController 
{
 public List<AccountWrapper> wrappers {get; set;}
 public static Integer toDelIdent {get; set;}
 public static Integer addCount {get; set;}
 private Integer nextIdent=1;
  
 public ManageListController()
 {
  wrappers=new List<AccountWrapper>();
  for (Integer idx=0; idx<1; idx++)
  {
   wrappers.add(new AccountWrapper(nextIdent++));
  }
 }
  
 public void delWrapper()
 {
  Integer toDelPos=-1;
  for (Integer idx=0; idx<wrappers.size(); idx++)
  {
   if (wrappers[idx].ident==toDelIdent)
   {
    toDelPos=idx;
   }
  }
   
  if (-1!=toDelPos)
  {
   wrappers.remove(toDelPos);
  }
 }
  
 public void addRows()
 {
  for (Integer idx=0; idx<addCount; idx++)
  {
   wrappers.add(new AccountWrapper(nextIdent++));
  }
 }
  
 public PageReference save(){
 try{
  List<Debtors_Ledger__c> accs=new List<Debtors_Ledger__c>();
  for (AccountWrapper wrap : wrappers)
  {
   accs.add(wrap.acc);
   
  }
   insert accs;
  
  return new PageReference('/' + Schema.getGlobalDescribe().get('Debtors_Ledger__c').getDescribe().getKeyPrefix() + '/o');
  }
  
 catch(Exception e)
        {  
        //ApexPages.Message myMsg = new  ApexPages.Message(ApexPages.Severity.ERROR,'Sorry...... You have entered DUPLICATE MASTER CODE' );
           // ApexPages.addMessage(myMsg); 
         
           Apexpages.addMessage(new Apexpages.message(ApexPages.Severity.Error,'Sorry...... You have entered DUPLICATE MASTER CODE'));
        } 
        return null; 
  
  
  
  
 }
 
 public pageReference parentPage () {

          return new pageReference('/apex/MasterDetailsPage');
} 
  
  
  
 public class AccountWrapper
 {
  public Debtors_Ledger__c acc {get; private set;}
  public Integer ident {get; private set;}
   
  public AccountWrapper(Integer inIdent)
  {
   ident=inIdent;
   acc=new Debtors_Ledger__c();
  }
 }
}