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    Looks like we can't reproduce the issue or there's a problem in the test case provided.
  1. #1
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    Default LiveGridView - NullPointerException

    LiveGridView - NullPointerException


    Version(s) of Ext GWT
    Ext GWT 3.0 Final

    Browser versions and OS (and desktop environment, if applicable)
    IE 9, Windows 7

    Virtual Machine
    No

    Description
    I'm using a LiveGridView without a Loader, and that leads to a NullPointerException:
    Caused by: java.lang.NullPointerException: null
    at com.sencha.gxt.widget.core.client.grid.LiveGridView.initData(LiveGridView.java:361)
    at com.sencha.gxt.widget.core.client.grid.GridView.init(GridView.java:1854)
    at com.sencha.gxt.widget.core.client.grid.Grid.onAttach(Grid.java:957)
    You're not checking whether the loader is null and try to add a LoadHandler to that (non-existent) loader.

    Run mode
    Development Mode

    Test case

    Code:
    public class MyGrid extends Grid
    {
        static TestProvider prov = GWT.create(TestProvider.class);
    
        public MyGrid()
        {
            super(new ListStore<TestDTO>(prov.oid()), new ColumnModel(getColumnConfigList()),
                    new LiveGridView<TestDTO>());
    
            setBorders(true);
            getView().setColumnLines(true);
            getStore().add(new TestDTO(1, 3, 1));
            getStore().add(new TestDTO(2, 4, 2));
            getStore().add(new TestDTO(3, 9, 6));
            getStore().add(new TestDTO(4, 7, 2));
        }
    
        private static List<ColumnConfig> getColumnConfigList()
        {
            List<ColumnConfig> columnConfigList = new ArrayList<ColumnConfig>();
            columnConfigList.add(new ColumnConfig(prov.att1(), 250, "Column 1"));
            columnConfigList.add(new ColumnConfig(prov.att2(), 250, "Column 2"));
    
            return columnConfigList;
        }
    
        class TestDTO
        {
            private int oid;
            private int att1;
            private int att2;
    
            public TestDTO(int oid, int att1, int att2)
            {
                super();
                this.oid = oid;
                this.att1 = att1;
                this.att2 = att2;
            }
    
            public int getAtt1()
            {
                return att1;
            }
    
            public void setAtt1(int att1)
            {
                this.att1 = att1;
            }
    
            public int getAtt2()
            {
                return att2;
            }
    
            public void setAtt2(int att2)
            {
                this.att2 = att2;
            }
    
            public int getOid()
            {
                return oid;
            }
    
            public void setOid(int oid)
            {
                this.oid = oid;
            }
        }
    
        interface TestProvider extends PropertyAccess<TestDTO>
        {
    
            ModelKeyProvider<TestDTO> oid();
    
            ValueProvider<TestDTO, Integer> att1();
    
            ValueProvider<TestDTO, Integer> att2();
        }
    
    }

  2. #2
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    Default


    Currently LiveGridView always requires a Loader. You could simple use a MemoryProxy for now that serves local data too. I am closing this thread for now, but keeping it on the list as a feature request.

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