Typeahead.js for MVC 5 Models

Question

Ive just imlemented typeahead functionality using thw Typeahead.js for MVC 5 Models wrapper

http://timdwilson.github.io/typeahead-mvc-model/

it all works ok but

Answer 1

The key is to use the linq "Take"

This works: 1) Create an action in your controller and set the RouteConfig to start this action

public class HomeController : Controller
{
    public ActionResult Index20()
    {
        MyViewModel m = new MyViewModel();
        return View(m);
    }

Create a view without any type of master page Add this view model:

public class MyViewModel
{
    public string SourceCaseNumber { get; set; }
}

Go to Manage Nuget Packages or PM Console and add to MVC 5 project - Typeahead.js for MVC 5 Models by Tim Wilson Change the namespace for the added HtmlHelpers.cs to System.Web.Mvc.Html and rebuild Add this class:

public class CasesNorm
{
    public string SCN { get; set; }
}

Add these methods to your controller:

private List<Autocomplete> _AutocompleteSourceCaseNumber(string query)
    {
        List<Autocomplete> sourceCaseNumbers = new List<Autocomplete>();
        try
        {
            //You will goto your Database for CasesNorm, but if will doit shorthand here

            //var results = db.CasesNorms.Where(p => p.SourceCaseNumber.Contains(query)).
            //    GroupBy(item => new { SCN = item.SourceCaseNumber }).
            //    Select(group => new { SCN = group.Key.SCN }).
            //    OrderBy(item => item.SCN).
            //    Take(10).ToList();   //take 10 is important

            CasesNorm c1 = new CasesNorm { SCN = "11111111"};
            CasesNorm c2 = new CasesNorm { SCN = "22222222"};
            IList<CasesNorm> aList = new List<CasesNorm>();
            aList.Add(c1);
            aList.Add(c2);
            var results = aList;

            foreach (var r in results)
            {
                // create objects
                Autocomplete sourceCaseNumber = new Autocomplete();

                sourceCaseNumber.Name = string.Format("{0}", r.SCN);
                sourceCaseNumber.Id = Int32.Parse(r.SCN);
                sourceCaseNumbers.Add(sourceCaseNumber);
            }
        }
        catch (EntityCommandExecutionException eceex)
        {
            if (eceex.InnerException != null)
            {
                throw eceex.InnerException;
            }
            throw;
        }
        catch
        {
            throw;
        }
        return sourceCaseNumbers;
    }

    public ActionResult AutocompleteSourceCaseNumber(string query)
    {
        return Json(_AutocompleteSourceCaseNumber(query), JsonRequestBehavior.AllowGet);
    }

     throw;
    }
    catch
    {
        throw;
    }
    return sourceCaseNumbers;
}

public ActionResult AutocompleteSourceCaseNumber(string query)
{
    return Json(_AutocompleteSourceCaseNumber(query), JsonRequestBehavior.AllowGet);
}

credit goes to http://timdwilson.github.io/typeahead-mvc-model/