c# - An explicit conversion exists (are you missing a cast?)

Question

I have a method that gives me the groupID of users and then I want to get the news based on the user's GroupID.

public IEnumerable<News> Getnews(int GroupID)
{
    Expression<Func<News, bool>> constraint = null;
    constraint = e => e.GroupID.Equals(GroupID);
    return newsRepository.GetMany(constraint);

}

here I call the above method:

News news = newsService.Getnews(GroupID);

and this is the error :

Cannot implicitly convert type 'System.Collections.Generic.IEnumerable<MeetingBoard.Model.News>' to 'MeetingBoard.Model.News'. An explicit conversion exists (are you missing a cast?)

Answer 1

Getnews returns a collection of news items, and your line is expecting a single news item.

You could try

News news = newsServices.Getnews(GroupID).FirstOrDefault();

or expect an ineumerable

IEnumerable<News> news = newsService.GetNews(GroupID);