how to choose record when i double click on ListGrid ?

[LHG]

how to choose record when i double click on ListGrid ?
请问如何在ListGrid上双击选择某一条记录？而不是依靠点击类表前的复选框选中。

public class DataListGrid extends ListGrid {

	public DataListGrid(){
		setWidth100();
		setHeight100();
		setShowAllRecords(true);
		setSelectionType(SelectionStyle.SIMPLE);
		setSelectionAppearance(SelectionAppearance.CHECKBOX);
		setShowHeaderMenuButton(false);		setShowHeaderContextMenu(false
		setCanSort(false
		setCanResizeFields(false	
		addHeaderDoubleClickHandler(new HeaderDoubleClickHandler() {
			
			public void onHeaderDoubleClick(HeaderDoubleClickEvent event) {
				
			}
		});
	}
}