Avoid displaying repeated data on auto-complete textbox

Question

am using autocomplete ajax function on text-box MVC4.

till what i have done is. using ajax auto-complete function it will fetch all data from table columns.

Example :

In my columns U.S.A, Canada,London ,u.s.a,India,china,London,u.s.a, etc When i type on textbox as u.s.a. it fetch u.s.a,u.s.a,u.s.a,

Problem is,

i don't need to fetch repeated data when i type u.s.a

it should return u.s.a

not u.s.a,u.s.a,u.s.a,

Controller

 

public JsonResult GetLocation(string term)

{

SYTEntities db = new SYTEntities();

List<string> Location = new List<string>();

{

Location.AddRange(db.tblAddresses.Where(x => x.City.StartsWith(term))

.Select(y => y.City).ToList());

Location.AddRange(db.tblAddresses.Where(x => x.State.StartsWith(term))

.Select(y => y.State).ToList());

}

return Json(Location, JsonRequestBehavior.AllowGet);

}

 

view

<input type="search" name="txtLocation" id="txtLocation" value="@Session["location"]" placeholder=" City or State"> 

 

<script src="~/Scripts/jquery-ui-1.10.4.custom.min.js"></script>

<script type="text/javascript">

$(document).ready(function () {

$("#txtValue").autocomplete({

source: '@Url.Action("Getbusiness")',

minLength: 1

});

$("#txtLocation").autocomplete({

source: '@Url.Action("GetLocation")',

minLength: 1

});

});

</script>