private void editMemberBtn_Click(object sender, RoutedEventArgs e)
 {
     MemberInfo memberToEdit = GetSelectedItem();
     if (memberToEdit != null)
     {
         Members.MemberDetailsWindow AddMemberWindowObj = new Members.MemberDetailsWindow(memberToEdit);
         AddMemberWindowObj.Show();
     }
 }
 private void addMemberBtn_Click(object sender, RoutedEventArgs e)
 {
     Members.MemberDetailsWindow AddMemberWindowObj = new Members.MemberDetailsWindow(null);
     AddMemberWindowObj.Show();
 }