private void DeleteLineItem(Models.ViewModels.Sales.SalesHeaderViewModel model) { model.SetServiceHelpers(_inventoryService, _financialService); var request = HttpContext.Request; var deletedItem = request.Form["DeletedLineItem"]; if (!string.IsNullOrEmpty(deletedItem)) { model.SalesLine.SalesLineItems.RemoveAt(int.Parse(deletedItem)); } }