ASP MVC 6: sending multiselectselect as POST - asp.net

Question

I have a view in my app, that allows user to set up 2 multiselects.
The problem is: how can I send contents of those multiselects back to controller.
So far I have:
#using (Html.BeginForm())
{
#Html.AntiForgeryToken()
#Html.ValidationSummary()
<div id="member-list">
<div class="row" id="transfer">
<div class="col-md-6">
<select multiple="multiple" id="right-select">
#foreach (var item in Model.AnotherContacts)
{
<option value="#item.Id" onclick="transfer(this)">
#item.Email - #item.Name
</option>
}
</select>
</div>
<div class="col-md-6">
<select multiple="multiple" id="left-select">
#foreach (var item in Model.Group.Members)
{
<option value="#item.Contact.Id" onclick="transfer(this)">
#item.Contact.Email - #item.Contact.Name
</option>
}
</select>
</div>
</div>
</div>
<div class="col-md-3">
<input type="submit" class="btn btn-grey" value="Save" />
</div>
</div>
And now: how to write a controller to have there list of items, hat I have in both multiselects?
[HttpPost]
public ActionResult Manage(int id)
{
return View();
}

Answer 1

Well first for a form post to be successful you need to add name attributes to your inputs.
<select multiple="multiple" id="left-select" name="leftSelect">
<select multiple="multiple" id="right-select" name="rightSelect">
Then your controller would be
[HttpPost]
public ActionResult Manage(int[] leftSelect, int[] rightSelect)
{
//your code
return View();
}
Notice the names of method parameters are the same as the name attributes on the select lists.
Note: I assumed your #item.Contact.Id and #item.Id are of type
int.

Answer 2

Make your controller expect several parameters
[HttpPost]
public ActionResult Manage(int id, int id2)
{
//your code
return View();
}
This of course depends on what you want to send to to the controller, but I hope you get the idea. You havent shown the code required, but I would guess you have selectLists that return strings, and if that is the case, change the parameters in the Manage Action to expect string variables