DeliveryAncmtAdminWindow: Display stats in status bar

Elwig/Windows/DeliveryAncmtAdminWindow.xaml.cs

@@ -127,6 +127,9 @@ namespace Elwig.Windows {
                 DeliveryAncmtList_SelectionChanged, ViewModel.TextFilter.Count > 0 ? ControlUtils.RenewSourceDefault.IfOnly : ControlUtils.RenewSourceDefault.None, !updateSort);
             if (updateSort && DeliveryAncmtList.SelectedItem != null)
                 DeliveryAncmtList.ScrollIntoView(DeliveryAncmtList.SelectedItem);
+
+            ViewModel.StatusAncmts = $"{deliveryAncmts.Count:N0}";
+            ViewModel.StatusWeight = $"{deliveryAncmts.Sum(a => a.Weight):N0} kg";
         }
 
         private async Task RefreshInputs(bool validate = false) {