context menu issue in treegrid and datagrid (ver 1.4.3)

[what_tahw]

in 1.4.3 version, when right click inside treegrid/datagrid control, but outside data rows, would trigger context menu.
but at that time, id is "null",
so we might got this error message: "Uncaught TypeError: Cannot read property 'id' of null"

[jarry]

You have to detect if the 'row' parameter is null in the 'onContextMenu' function.

Code:

function onContextMenu(e,row){
	if (row){
		e.preventDefault();
		$(this).treegrid('select', row.id);
		$('#mm').menu('show',{
			left: e.pageX,
			top: e.pageY
		});				
	}
}

Please refer to http://www.jeasyui.com/demo/main/index.php?plugin=TreeGrid&theme=default&dir=ltr&pitem=TreeGrid%20ContextMenu