Null Checking of People picker

 if (pplContarctEmp.ResolvedEntities.Count > 0) 

                { 

                    lblKaizenOwnerEmployeeNoValue.Text = GetApprovers(pplContarctEmp); 

                } 

private string GetApprovers(PeopleEditor ppl) 

        { 

            foreach (PickerEntity entity in ppl.ResolvedEntities) 

            { 

                login = entity.DisplayText.ToString();//Description.ToString(); 

            } 

            return login; 

        }