DOJO dataGrid 单击单元格选中行

onCellClick: lang.hitch(this, function(event){					
	//单元格单击事件
	var grid = dijit.byId("__geodisa_grid");
	var rowIndex = event.rowIndex;
	//如果已有选择的行则取消改行选中状态
	if (grid.selection.selectedIndex >= 0) {
		grid.selection.setSelected(grid.selection.selectedIndex, false);
	}
	//选择当前点击的行
	grid.selection.setSelected(rowIndex,true);
}