Null Checking of People picker

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 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; 
        } 


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