Call controller method from view

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MVC

Hi,
I am begginer to MVC.I want to call controller method from view.
Following is my controller method

public List<SelectListItem> GetCardTypes(string defaultValue)
    {

        if (defaultValue =="FPS")
        {
            items.Add(new SelectListItem { Text ="scft/min" Value ="scft/min"});           
        }
        else
        {
            items.Add(new SelectListItem { Text = "Nm/hr", Value ="Nm/hr" });           
        }
        return items;
    }

In View I will write script as follows

<script type="text/javascript">

    $(function () {

        $("#DDUnit").change(function (evt)
        {
            var DropDownSelectedVal = $("#DDUnit :selected").val();           
            if (DropDownSelectedVal !=null)
            {
                $.ajax({
                    url:"abc/GetCardTypes",
                    type: 'POST',
                    data: { "ParameterYouWantToPass" : DropDownSelectedVal },
                    success: function (response)
                     {                       
                     }
            });
        }
        });
    });
</script>

I want when function is successfully executed,return value that is "items" which has return type "List <SelectListItem>".I want to use that items which is return by controller method.