Hi Dimiter ,
Thank you! Sorry to reply a little late .
tree.dataSource.read(); But under the ie that it is no use !
So i want to at the end of url add a time stamp,
.Read(read => read.Action("GetTreeMenu", "Menu"))
//change like this
//.Read(read => read.Action("GetTreeMenu?time="+DateTime.Now.ToString()+"&"+, "Menu"))
//but is no work
At last I through get the js code is compiled.
changed the url like this("GetTreeMenu?time="+ new Date().getTime() +"&"),
Then To replace it himself ! Now it can refresh.
If you have a good solution, please tell me, thank you !