public async Task <IViewComponentResult> InvokeAsync(string selectedArtistName = null)
{
var artistNamesAllViewModel = await artistService.GetAllArtistNamesAsync();
if (!artistNamesAllViewModel.Any(artist => artist.FullName == selectedArtistName))
{
return(View(artistNamesAllViewModel));
}
var selected = artistNamesAllViewModel.Single(x => x.FullName == selectedArtistName);
var index = artistNamesAllViewModel.IndexOf(selected);
var first = artistNamesAllViewModel[0];
artistNamesAllViewModel[0] = selected;
artistNamesAllViewModel[index] = first;
return(View(artistNamesAllViewModel));
}