public async Task <IActionResult> OnPostAsync()
{
var tracks = await _apiClient.GetTracksAsync();
if (tracks.Any(t => t.Name == Track.Name && t.ConferenceID == Track.ConferenceID))
{
ModelState.AddModelError("Track.Name", $"The track name {Track.Name} exists already");
}
if (!ModelState.IsValid)
{
await GetConferences();
return(Page());
}
Message = "Track created successfully!";
await _apiClient.AddTrackAsync(Track);
return(RedirectToPage());
}