How Do I Get All The Results For A The Values In A Distinct Field To Display On Page Using A Dropdown

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In my Dropdown im trying to Display all the news from a specific Department

I have Departments with different ids in the database ...........

XML

public List<New>  getNewsType()
    {
        NewsDataContext objNews = new NewsDataContext(); // new instance of class


      var allNews=  objNews.News.GroupBy(x => x.Department).Select(x => x.SingleOrDefault());

      return allNews.ToList();


  private void bindNews()
    {
        linqClass objLinq = new linqClass();

        ListView1.DataSource = objLinq.getNewsType();
        ListView1.DataBind();
        ddl_news.DataSource = objLinq.getNews();
        ddl_news.DataTextField = "Department";
        ddl_news.DataValueField = "Department";
        ddl_news.DataBind();
    }

Posted 9-Apr-14 12:18pm

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Herman<T>.Instance 11-Apr-14 14:07pm

And now the question?

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Anil Singh 2010 · Answer 1 · 2014-06-23T02:01:00

XML

ICollection<ServiceContract> serviceContract = mapper.MapDALServiceContracts2BAL(objDalServiceContract.getAllServiceContract());
           if (id > 0)
           {

             var sc = serviceContract.GroupBy(m => m.EndDate).Select(g => g.First());

           }

For more details visit on below link.
http://www.code-sample.com/2014/06/distinct-values-from-list-using-linq.html[^]