MVC Json Ajax 二级 级连

<script type="text/javascript"> $(document).ready(function() { $("#teamName").change(function() { $.getJSON('/team/SelectProduct', { teamName: $("#teamName").val() }, function(data) { $("#productID").empty(); $.each(data, function(i, item) { $("<option></option>") .val(item) .text(item) .appendTo($("#productID")) }); }); }) });

 

controller:

public ActionResult SelectProduct() { string teamName = Request.Params["teamName"]; int teamID = dc.TestTeams.Where(x => x.Name == teamName).SingleOrDefault().Id; var productCollection = dc.Products.Where(x => x.TestTeamId == teamID).Select(x=> x.ShortName); return Json(productCollection); }