It works for me, create a tuple first and convert it to a ValueTuple:
var post = iPostService.GetAll().
Select(x => new Tuple<string, string>(x.Title, x.Author).ToValueTuple())
It works for me, create a tuple first and convert it to a ValueTuple:
var post = iPostService.GetAll().
Select(x => new Tuple<string, string>(x.Title, x.Author).ToValueTuple())