How to enable SelectionMode.SIMPLE on CheckBoxSelectionModel in Grid?

[bitkopf]

Hi,
i try to make multiple rows selectable through checkboxes in a grid without pressing Ctrl or Shift.
I have extracted my problem by this test case:

public class Test implements EntryPoint{

    class Dummy extends BaseModel{
        public Dummy() {
            set("name", "Dummy" );
        }
    }
    
    @Override
    public void onModuleLoad() {
        
        ListStore<Dummy> store = new ListStore<Dummy>();
        store.add(new Dummy());
        store.add(new Dummy());
        
        List<ColumnConfig> columns = new ArrayList<ColumnConfig>();
        
        CheckBoxSelectionModel<Dummy> sm = new CheckBoxSelectionModel<Dummy>();
        sm.setSelectionMode(SelectionMode.SIMPLE);
        columns.add(sm.getColumn());
        
        ColumnConfig cc = new ColumnConfig("name", 100);
        columns.add(cc);
        
        ColumnModel cm = new ColumnModel(columns);
        
        Grid<Dummy> grid = new Grid<Dummy>(store, cm);

        RootPanel.get().add(grid);
        
    }
}

"sm.setSelectionMode(SelectionMode.SIMPLE);" seems to be completely ignored. Why?

[storm8]

i have the same problem and after few shot i solve problem using the following statement

grid.setSelectionModel(sm);

the object "sm" i create like follwing

CheckBoxSelectionModel<YourModelData> sm = new CheckBoxSelectionModel<YourModelData>();
sm.setSelectionMode(SelectionMode.MULTI);
configs.add(sm.getColumn());

[smiletolead]

You need to add selection model to the grid as a selection model and a plugin. Add these two lines of code:

grid.setSelectionModel(sm);
grid.addPlugin(sm);

[bitkopf]

Great. Thanks a lot!

That seems very redundant.
1. Pass the ColumnModel containing the SelectionModel to the grid in the constructor.
2. Set the SelectionModel for the Grid.
3. Add the SelectionModel as a plugin.

Anyway i'm glad it works :-)