public ViewResult Index(int?page, Sorting.SortValue?sortedBy, bool?asc)
{
var operations = operationsManager.getOperations();
var operationsModel = operations
.Select(Mapper.Map <OperationViewModel>);
OperationsListViewModel model = new OperationsListViewModel();
SortOperations(model, sortedBy, asc);
PaginateOperations(model, page);
return(View(model));
}