GXT 3 Can't fill Grid -

i want load data remote server in grid. following code:

            final repserviceasync service = gwt.create(repservice.class);             final repproperties props = gwt.create(repproperties.class);   rpcproxy<pagingloadconfig, pagingloadresult<reportslist>> proxy = new rpcproxy<pagingloadconfig, pagingloadresult<reportslist>>() {     @suppresswarnings("unchecked")     @override     public void load(pagingloadconfig loadconfig, asynccallback  callback) {       service.getreports(callback);     }   };  liststore<reportslist> store = new liststore<reportslist>(props.key()); final pagingloader<pagingloadconfig, pagingloadresult<reportslist>> loader = new pagingloader<pagingloadconfig, pagingloadresult<reportslist>>(         proxy);  loader.setremotesort(true); loader.addloadhandler(new loadresultliststorebinding<pagingloadconfig, reportslist, pagingloadresult<reportslist>>(         store));   final pagingtoolbar toolbar = new pagingtoolbar(50); toolbar.getelement().getstyle().setproperty("borderbottom", "none"); toolbar.bind(loader);   columnconfig<reportslist, string> namecol = new columnconfig<reportslist, string>(         props.name(), 150, "name"); columnconfig<reportslist, string> pathcol = new columnconfig<reportslist, string>(         props.path_name(), 150, "path");   list<columnconfig<reportslist, ?>> l = new arraylist<columnconfig<reportslist, ?>>(); l.add(namecol); l.add(pathcol);  columnmodel<reportslist> cm = new columnmodel<reportslist>(l);  grid<reportslist> grid = new grid<reportslist>(store, cm) {     @override     protected void onafterfirstattach() {         super.onafterfirstattach();         scheduler.get().scheduledeferred(new scheduledcommand() {             @override             public void execute() {                 loader.load();             }         });     } };  grid.getview().setforcefit(true); grid.setloadmask(true); grid.setloader(loader); 

repproperties:

public interface repproperties extends propertyaccess<reportslist> {     @path("id") modelkeyprovider<reportslist> key(); valueprovider<reportslist, string> name(); valueprovider<reportslist, string> path_name(); } 

reportslist code:

public class reportslist  implements serializable {     private static final long serialversionuid = 1l;     int id;     string name;     string path_name;      public reportslist() {             }      public reportslist(int id, string name, string path_name) {         super();         this.id = id;         this.name = name;         this.path_name = path_name;     }      public int getid() {         return id;     }     public void setid(int id) {         this.id = id;     }     public string getname() {         return name;     }     public void setname(string name) {         this.name = name;     }     public string getpath_name() {         return path_name;     }     public void setpath_name(string path_name) {         this.path_name = path_name;     } } 

gwt servlet impl:

public class repserviceimpl extends remoteserviceservlet implements repservice {      private static final long serialversionuid = 1l;     @ejb     private reportejb repmanager;      @override     public list<report> getreports() {         list<report> reports = null;          reports = repmanager.getreports();         return reports ;     } } 

the code executed without error, query database performed ( ejb-call ), grid not populated. in problem?

in experience means there exception while trying put data grid itself. try attaching loadexceptionhandler loader , see gives you

e.g.

public class debugloadhandler implements loadexceptionihandler<listloadconfig> {   @override     public void onloadexception(loadexceptionevent<listloadconfig> event) {     window.alert("load exception" + event.getexception().getmessage());   } }