EasyUI DataGrid上下移动行

//行上移
var rows = $('#dgSearchAreaRoad').datagrid('getRows');
var rowlength = rows.length;
var selectrow = $('#dgSearchAreaRoad').datagrid('getSelected');
var rowIndex = $('#dgSearchAreaRoad').datagrid('getRowIndex', selectrow);
if (rowIndex == 0) {
	$.messager.alert('提示', '顶行无法上移!', 'warning');
} else {
	$('#dg').datagrid('deleteRow', rowIndex);//删除一行
	rowIndex--;
	$('#dg').datagrid('insertRow', {
		index: rowIndex,
		row: selectrow
	});
	$('#dg').datagrid('selectRow', rowIndex);
}

//行下移
var rows = $('#dgSearchAreaRoad').datagrid('getRows');
var rowlength = rows.length;
var selectrow = $('#dgSearchAreaRoad').datagrid('getSelected');
var rowIndex = $('#dgSearchAreaRoad').datagrid('getRowIndex', selectrow);
if (rowIndex == rowlength - 1) {
	$.messager.alert('提示', '底行无法下移!', 'warning');
} else {
	$('#dg').datagrid('deleteRow', rowIndex);//删除一行
	rowIndex++;
	$('#dg').datagrid('insertRow', {
		index: rowIndex,
		row: selectrow
	});
	$('#dg').datagrid('selectRow', rowIndex);
}