title: How can I send the Grid Filter parameters in my RequestBuilder in Ext GWT?
body: <p>The paging function, and a local filtering is perfect, but i need the REMOTE filter, and i wanna sending the filters parameter to the request method. </p>
  
  <p>Thx!</p>
  
  <p>I have this code:</p>
  
  <pre><code>String path =  GWT.getHostPageBaseURL() + (Examples.isExplorer() ? "" : "../../" ) + "backend/index.php?action=getLines";  
  
  RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);  
  HttpProxy&lt;String&gt; proxy = new HttpProxy&lt;String&gt;(builder);  
  
  JsonPagingLoadResultReader&lt;PagingLoadResult&lt;ModelData&gt;&gt; reader = new JsonPagingLoadResultReader&lt;PagingLoadResult&lt;ModelData&gt;&gt;(type);  
  
  final PagingLoader&lt;PagingLoadResult&lt;ModelData&gt;&gt; loader = new BasePagingLoader&lt;PagingLoadResult&lt;ModelData&gt;&gt;(proxy,  
      reader);
  
  [...]
  
  
  NumericFilter sorszamFilter = new NumericFilter("Sorszam");
  
  StringFilter nevFilter = new StringFilter("Nev");
  
  DateFilter datumFilter = new DateFilter("Datum");
  NumericFilter szamFilter = new NumericFilter("Szam");
  
  GridFilters filters = new GridFilters();
  filters.setLocal(true);
  filters.addFilter(sorszamFilter);
  filters.addFilter(nevFilter);
  filters.addFilter(datumFilter);
  filters.addFilter(szamFilter);
  
  //example
  sorszamFilter.addListener(Events.Update, new Listener&lt;FilterEvent&gt;() {
      @Override
      public void handleEvent(FilterEvent be) {
          ???
      }
  
  });
  
  [...]
  
  final PagingToolBar toolBar = new PagingToolBar(10);  
  toolBar.bind(loader);  
  
  loader.load(0, 10); 
  </code></pre>