c# - html.dropdownlist 的 onchange 事件

Question

我正在尝试为下拉列表的 onchange 事件触发一个操作方法，如何在不使用 jquery onchange 的情况下执行此操作。

@Html.DropDownList("Sortby", 
                   new SelectListItem[] 
                   { 
                       new SelectListItem() { Text = "Newest to Oldest", Value = "0" }, 
                       new SelectListItem() { Text = "Oldest to Newest", Value = "1" }})

谢谢

Answer 1

如果你不想要 jquery 那么你可以用 javascript 来完成:-

@Html.DropDownList("Sortby", new SelectListItem[] 
{ 
     new SelectListItem() { Text = "Newest to Oldest", Value = "0" }, 
     new SelectListItem() { Text = "Oldest to Newest", Value = "1" }},
     new { @onchange="callChangefunc(this.value)" 
});

<script>
    function callChangefunc(val){
        window.location.href = "/Controller/ActionMethod?value=" + val;
    }
</script>