public async Task <IEnumerable <SelectListItem> > GetDepartments(Guid?facultyId)
{
var faculty = await _requestSender.GetContetFromRequestAsyncAs <Faculty>(
await _requestSender.SendGetRequestAsync("https://localhost:44389/api/Faculties/one?id=" + facultyId)
);
IEnumerable <SelectListItem> departmentsSelectListItems = faculty.Departments.OrderBy(n => n.Name)
.Select(n =>
new SelectListItem
{
Value = n.Id.ToString(),
Text = n.Name
}).ToList();
return(new SelectList(departmentsSelectListItems, "Value", "Text"));
}