PC端，grid点击行，选中

事件

'grid.things-grid-row-data-select': 'onSelectAll',

方法

onSelect:function(){
	var gridobj = this.$['grid'].getGridObject();
	var focusedRow = gridobj.focusedRow();
	var currentstatus = focusedRow.$_checked;
	gridobj.setChecked(focusedRow, !currentstatus);
},