ASP.NET MVC - Javascript array always passed to controller as null
- by Xuan Vu
I'm having some problem with passing a javascript array to the controller. I have several checkboxes on my View, when a checkbox is checked, its ID will be saved to an array and then I need to use that array in the controller. Here are the code:
VIEW:
var selectedSearchUsers = new Array();
$(document).ready(function () {
$("#userSearch").click(function () {
selectedSearchUsers.length = 0;
ShowLoading();
$.ajax({
type: "POST",
url: '/manage/searchusers',
dataType: "json",
data: $("#userSearchForm").serialize(),
success: function (result) { UserSearchSuccess(result); },
cache: false,
complete: function () { HideLoading(); }
});
});
$(".userSearchOption").live("change", function () {
var box = $(this);
var id = box.attr("dataId");
var checked = box.attr("checked");
if (checked) {
selectedSearchUsers.push(id);
}
else {
selectedSearchUsers.splice(selectedSearchUsers.indexOf(id), 1);
}
});
$("#Send").click(function () {
var postUserIDs = { values: selectedSearchUsers };
ShowLoading();
$.post("/Manage/ComposeMessage",
postUserIDs,
function (data) { }, "json");
});
});
When the "Send" button is clicked, I want to pass the selectedSearchUsers to the "ComposeMessage" action. Here is the Action code:
public JsonResult ComposeMessage(List values)
{
//int count = selectedSearchUsers.Length;
string count = values.Count.ToString();
return Json(count);
}
However, the List values is always null. Any idea why?
Thank you very much.
