public async Task <IActionResult> Create()
{
var tokenizers = await manager.GetTokenizerServicesAsync();
var comparators = await manager.GetComparisonServicesAsync();
ViewBag.Tokenizers = tokenizers.Select(t => new SelectListItem {
Text = t.Name, Value = t.Id.ToString()
}).ToList();
ViewBag.Comparators = comparators.Select(c => new SelectListItem {
Text = c.Name, Value = c.Id.ToString()
}).ToList();
return(View("Edit", new EditAssignmentModel()));
}