or

GroupDescriptor groupByTemperature = new GroupDescriptor();groupByTemperature.GroupNames.Add("Temperature", ListSortDirection.Ascending);




var tree = new RadTreeView();for (var i = 0; i < 100; i++){ tree.Nodes.Add(new RadTreeNode("Item " + i.ToString()));}var hostItem = new RadMenuHostItem(tree);radDropDownButton1.Items.Add(hostItem);
BindingSource bsData = new BindingSource();var listBinding = new BindingList<SaleBillDetailsDTO>(lstSBDetails);bsData.DataSource = listBinding;radGridView2.DataSource = bsData; // Allow the user to add rows((BindingList<SaleBillDetailsDTO>)bsData.List).AllowNew = true;
((BindingList<SaleBillDetailsDTO>)bsData.List).AllowRemove = true; 
