datagrid toolbar toggle linkbutton not works[SOLVED]

[wade.zhu]

Code:

$('#datagrid').datagrid({
	....
	toolbar : [{
		text : 'Name',
		toggle : true,
		group : 'myGroup',
		handler : function() {
			// ...
		}
	}, {
		text : 'Class',
		toggle : true,
		group : 'myGroup',
		handler : function() {
			// ...
		}
	}]
});

i have a toolbar with 2 toggle buttons of the datagrid, but not works, anything wrong with my code?

[stworthy]

Please refer to this example http://jsfiddle.net/4wxrsd3g/. It works fine.