private void Statistics_CustomizePopupWindowParams(object sender, CustomizePopupWindowParamsEventArgs e)
 {
 // Veritabani islemlerini IObjectSpace interface'i üzerinden hallediyoruz.
 IObjectSpace pOS = Application.CreateObjectSpace();

 IList<BO_Student> studentList = pOS.GetObjects<BO_Student>();
 int numberOfStudents = studentList.Count;

 // Kriter verme örneği, sadece mezun olan öğrencileri getirir.
 CriteriaOperator co = new BinaryOperator("IsGraduated", true, BinaryOperatorType.Equal);
 IList<BO_Student> grstudentList = pOS.GetObjects<BO_Student>(co);
 int numberOfGraduatedStudents = grstudentList.Count;

 IList<BO_Teacher> teacherList = pOS.GetObjects<BO_Teacher>();
 int numberOfTeachers = teacherList.Count;
 
 // Application.CreateDetailView popup ekranının içeriğini gösterir.
 e.View = Application.CreateDetailView(pOS, statisticsObj, true);

 ((DetailView)e.View).ViewEditMode =
 DevExpress.ExpressApp.Editors.ViewEditMode.View;
 }