--- a/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/uinfo/AbstractVegZonesTablePanel.java	Mon Jun 04 08:50:18 2018 +0200
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/uinfo/AbstractVegZonesTablePanel.java	Mon Jun 04 11:25:29 2018 +0200
@@ -30,6 +30,7 @@
 import com.smartgwt.client.widgets.grid.ListGrid;
 import com.smartgwt.client.widgets.grid.ListGridField;
 import com.smartgwt.client.widgets.grid.ListGridRecord;
+import com.smartgwt.client.widgets.grid.SortNormalizer;
 import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
 import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
 import com.smartgwt.client.widgets.layout.HLayout;
@@ -63,20 +64,32 @@
         this.elements.setHeight(300); //
         this.elements.setShowHeaderContextMenu(false);
         this.elements.setCanReorderFields(false);
-        this.elements.setCanSort(false);
+        // this.elements.setCanSort(true);
+
         this.elements.setCanEdit(editable);
 
         final ListGridField vegzoneField = new ListGridField("vegzone", this.MSG.uinfo_vegetation_zones_label());
         vegzoneField.setType(ListGridFieldType.TEXT);
         vegzoneField.setWidth(245);
+        final SortNormalizer normalizer = new SortNormalizer() {
 
-        final ListGridField fromField = new ListGridField("from", this.MSG.uinfo_vegetation_zones_from());
-        fromField.setType(ListGridFieldType.INTEGER);
+            @Override
+            public Object normalize(final ListGridRecord record, final String fieldName) {
+                final String number = record.getAttribute(fieldName);
+                // String.format("%03d", number);// format.format(Integer.valueOf(number)); funktioniert hier leider nicht
+                final String numberFormat = "000" + number;
+                return numberFormat.substring(numberFormat.length() - 3);
+            }
+        };
         final IntegerRangeValidator validator = new IntegerRangeValidator();
         validator.setMin(0);
         validator.setMax(365);
         validator.setErrorMessage(this.MSG.uinfo_vegetation_zones_validation_range());
 
+        final ListGridField fromField = new ListGridField("from", this.MSG.uinfo_vegetation_zones_from());
+        fromField.setType(ListGridFieldType.INTEGER);
+        fromField.setCanSort(true);
+        fromField.setSortNormalizer(normalizer);
         fromField.setValidators(validator);
         fromField.setWidth(80);
         fromField.setAlign(Alignment.RIGHT);
@@ -86,8 +99,11 @@
         toField.setValidators(validator);
         toField.setWidth(80);
         toField.setAlign(Alignment.RIGHT);
+        toField.setSortNormalizer(normalizer);
 
-        if (editable) {
+        if (editable)
+
+        {
             final ListGridField removeField = createRemoveField();
             this.elements.setFields(vegzoneField, fromField, toField, removeField);
 

--- a/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/uinfo/VegetationzonesTableEditPanel.java	Mon Jun 04 08:50:18 2018 +0200
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/uinfo/VegetationzonesTableEditPanel.java	Mon Jun 04 11:25:29 2018 +0200
@@ -66,6 +66,11 @@
                 r.setAttribute("from", v1);
                 r.setAttribute("to", v2);
                 elements.addData(r);
+                final String sortField = elements.getSortField();
+                if (sortField != null) {
+                    elements.toggleSort(sortField);
+                    elements.toggleSort(sortField); // HACK. has to be. otherwise normalizer won't be called :-(
+                }
             }
         });