protected void btnSaveReordering_Click(object sender, EventArgs e)
{
//JavaScriptSerializer js = new JavaScriptSerializer();
string json = hdnGetJosnResult.Value;
//var tree = js.Deserialize<Plugghest.Base2.CoursePlugg[]>(json).ToList();
var tree = Newtonsoft.Json.JsonConvert.DeserializeObject<CoursePlugg[]>(json).ToList();// js.Deserialize<Plugghest.Base2.CoursePlugg[]>(json).ToList();
BaseHandler bh = new BaseHandler();
bh.UpdateCourseTree(tree);
BindTree();
}