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我对MVC非常陌生,并试图使用this example设置一系列级联下拉列表。如何从级联下拉列表中获取值使用ajax
但是我被卡住了一点,因为我不知道如何从第二个下拉列表中获取值并将其发送到控制器,当我按下相应的按钮时。
这是我的观点:
<script type="text/javascript">
$('#list').change(function() {
var selectedClient = $(this).val();
if (selectedClient != null && selectedClient != '') {
$.getJSON('@Url.Action("SelectC")', { clientID: selectedClient }, function (client) {
var campaingSelect = $('#clist');
campaingSelect.empty();
$.each(client, function(index, clients) {
campaingSelect.append($('<option/>', {
value: clients.value,
text: clients.text
}));
});
});
}
});
</script>
@using (Html.BeginForm("CreateNewCampaign", "Home", FormMethod.Post))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
@Html.LabelFor(m => m.alreadyCreatedCampaignName, "Name:")
@Html.DropDownList("clist","-- Select Client -2-")
<input type="Submit" name="button" value="Select" class="btn btn-primary" />
}
控制器:
public ActionResult SelectC(int clientId, CampaignModel model, FormCollection form)
{
Session["ClientID"] = clientId;
ViewBag.ClientName = "You're using: " + Session["ClientName"];
var CampaignInf = CampaignManagementService.GetCampaigns((string) Session["ticket"], clientId);
List<AlreadyCreatedCampaignList> itemas = new List<AlreadyCreatedCampaignList>();
foreach (var element in CampaignInf)
{
itemas.Add(new AlreadyCreatedCampaignList() {CampId = element.Key, CampName = element.Value});
}
var listOfCam = new SelectList(itemas, "campID", "campName", 1);
return Json(listOfCam.Select(x => new {value = x.Value, text = x.Text}), JsonRequestBehavior.AllowGet);
}
我想要得到的值到其他控制器,并且我不知道的正确的方式去这样做。
的问题并不是那么清楚,哪里是要根据第一个下拉筛选第二个下拉按钮。 – Sravan
Button is here @ Html.DropDownList(“clist”,“ - Select Client -2-”) 通过筛选一切正常,但如何从其他下拉菜单中获取价值并将其传输到控制器 – piotr