Hi Senthil,
You could deine another dummy node in the BO say sortedList2
var sortedList = this.unsortedList.OrderBy(n=>n.someElements); //Clear the dummy node this.sortedList2.Delete(); foreach(var items in sortedList) { sortedElements.ID = items.ID; . . . //Populate the dummy node to contain sorted list this.sortedList2.Create(sortedElements); } //Clear the original node this.unsortedList2.Delete(); //Copy back to the original node foreach(var items in sortedList2) { sortedElements.ID = items.ID; . . . this.unsortedList2.Create(sortedElements); }Thanks, Pradeep.