--- a/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/TableDataPanel.java	Wed Nov 27 14:36:35 2013 +0100
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/TableDataPanel.java	Wed Nov 27 14:55:25 2013 +0100
@@ -142,6 +142,7 @@
 
         String[] header      = list.get(0);
         String[] firstValues = list.get(1);
+        String[] displayField = new String[header.length];
 
         ListGridField[] fields = new ListGridField[header.length];
 
@@ -157,6 +158,14 @@
             catch (NumberFormatException nfe) {
                 f.setType(ListGridFieldType.TEXT);
             }
+            // To keep server-side formatting and i18n also of
+            // float values, we will store the value once formatted 'as is'
+            // to be displayed and once as e.g. float to allow functions like
+            // sorting on it.
+            displayField[i] = i + "_displayField";
+            f.setDisplayField(displayField[i]);
+            f.setValueField(String.valueOf(i));
+            f.setSortByDisplayField(false);
         }
 
         dataTable.setFields(fields);
@@ -165,7 +174,15 @@
             String[] sItem = list.get(i);
             ListGridRecord r = new ListGridRecord();
             for(int j = 0; j < sItem.length; j++) {
-                r.setAttribute(String.valueOf(j), sItem[j]);
+                // See above, display 'as is' from server, but keep value
+                // in machine-usable way (float), to allow numeric sorting.
+                r.setAttribute(displayField[j], sItem[j]);
+                if (fields[j].getType() == ListGridFieldType.TEXT) {
+                    r.setAttribute(String.valueOf(j), sItem[j]);
+                }
+                else {
+                    r.setAttribute(String.valueOf(j), nf.parse(sItem[j]));
+                }
             }
             dataTable.addData(r);
         }